I'm trying to write simple project for school, but I have a problem which can't solve. I searched stack for solution, but nothing really works. So the problem:
I have two entity classes created with Hibernate (my db is HSQLDB):
#Entity
#Table(name = "Zwierzak")
#NamedQueries({ #NamedQuery(name = "delZwierzak", query = "Delete from Zwierzak z where z.zwierzakId = :zid"),
#NamedQuery(name = "delAll", query = "Delete from Zwierzak"),
#NamedQuery(name = "getAll", query = "from Zwierzak"),
#NamedQuery(name = "getByGatunek", query = "Select z from Zwierzak z where z.gatunek = :g")})
public class Zwierzak {
//Some fields here ...
#OneToMany(fetch = FetchType.EAGER, mappedBy = "chorobaId", cascade = {javax.persistence.CascadeType.ALL}, orphanRemoval = true)
#Cascade({org.hibernate.annotations.CascadeType.ALL})
private Set<Choroba> choroby = new HashSet<Choroba>(0);
//Some methods here ...
And second class:
#Entity
#Table(name="Choroba")
public class Choroba {
//Some fields here ...
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name="zwierzakId")
#OnDelete(action = org.hibernate.annotations.OnDeleteAction.CASCADE)
Zwierzak zwierzak;
//Some methods here ...
Now I'm adding some Zwierzak entities to database, and try to add Choroba like that:
Session session = sessionFactory.getCurrentSession();
session.beginTransaction();
//Creating and saving Zwierzak (parent) first
Zwierzak z = new Zwierzak();
session.save(z);
//Creating choroba
Choroba ch = new Choroba();
//Setting parent in child class
ch.setZwierzak(z);
//Adding child in parent class
z.getChoroby().add(ch);
//Saving child
session.save(ch);
And I'm still getting exceptions. Here is stack trace from log:
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.673 sec <<< FAILURE!
addZwierzakTest(pl.ug.edu.pl.services.ZwierzakServiceTest) Time elapsed: 0.249 sec <<< ERROR!
org.hibernate.exception.ConstraintViolationException: could not execute statement
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:74)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:136)
at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:214)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:194)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:178)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:321)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:286)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:192)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:125)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:206)
at org.hibernate.event.internal.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:55)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:191)
at org.hibernate.event.internal.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:49)
at org.hibernate.event.internal.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:90)
at org.hibernate.internal.SessionImpl.fireSave(SessionImpl.java:764)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:756)
at org.hibernate.internal.SessionImpl.save(SessionImpl.java:752)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.hibernate.context.internal.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:352)
at com.sun.proxy.$Proxy17.save(Unknown Source)
at pl.ug.edu.pl.services.ZwierzakService.dodajChorobe(ZwierzakService.java:50)
at pl.ug.edu.pl.services.ZwierzakServiceTest.addZwierzakTest(ZwierzakServiceTest.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:69)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:48)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:292)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.sql.SQLIntegrityConstraintViolationException: integrity constraint violation: foreign key no parent; FK_Q70JGX265MYFNVPD1K5M8ONUD table: CHOROBA
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:133)
... 58 more
I have no idea what is wrong, tried many things which I found that supposed to solve this problem, but still it doesn't work, I don't know where I do something wrong. Will be grateful for little help, thanks in advance! :)
EDIT: Id's are generated by #Id annotation of course.
I think the problem is the save operation does not create the id until the commit time, so when you are trying to make the second save id is not present, consider flush before the second save.
Zwierzak z = new Zwierzak();
session.save(z);
!!!Consider a flush here !!!
session.flush();
//Creating choroba
Choroba ch = new Choroba();
//Setting parent in child class
ch.setZwierzak(z);
//Adding child in parent class
z.getChoroby().add(ch);
//Saving child
session.save(ch);
Also
#OneToMany(fetch = FetchType.EAGER, mappedBy = "chorobaId",
It should be
#OneToMany(fetch = FetchType.EAGER, mappedBy = "zwierzak",
Mapped by refer to the field of the type that will contain the #ManyToOne, not directly the id. It should fix the issue.
In my case the #OneToMany collection was updated, some items were removed, and new added. Even though orphanremoval=true was specified on the collection, hiberhate did not actually removed the entries from the database.
The exception was thrown at the attempt to delete the owning entity.
The fix was to explicitely delete the items from the DB during the update operation.
Related
I have following entities:
I want to delete WordSet by id and username of the user using JPA.
Here is entity declarations:
User
#Entity
#Data
#ToString(callSuper = true)
#EqualsAndHashCode(callSuper = true)
#AllArgsConstructor
#NoArgsConstructor
public class User extends AbstractModelClass {
private String name;
private String username;
private String password;
private String email;
#ManyToMany(fetch = FetchType.EAGER)
private Set<Role> roles;
}
UserDictionary
#Entity
#Data
#ToString(callSuper = true)
#EqualsAndHashCode(callSuper = true)
#AllArgsConstructor
#NoArgsConstructor
public class UserDictionary extends AbstractModelClass {
#OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL, mappedBy = "userDictionary")
private Set<WordSet> wordSets;
#OneToOne(cascade = CascadeType.ALL)
private User user;
#PrePersist
private void addDictionaryToWordSets() {
wordSets.forEach(wordSet -> wordSet.setUserDictionary(this));
}
}
WordSet
#Entity
#Data
#AllArgsConstructor
#NoArgsConstructor
#EqualsAndHashCode(callSuper = true, exclude = {"studiedWords", "userDictionary"})
#ToString(callSuper = true, exclude = {"studiedWords", "userDictionary"})
public class WordSet extends AbstractModelClass {
#NotBlank
private String name;
#NotBlank
private String description;
#ManyToMany(fetch = FetchType.EAGER, cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REMOVE})
private List<StudiedWord> studiedWords;
#ManyToOne(fetch = FetchType.EAGER)
private UserDictionary userDictionary;
public WordSet(String name, String description, List<StudiedWord> studiedWords) {
this.name = name;
this.description = description;
this.studiedWords = studiedWords;
}
public WordSet(Long id, String name, String description, List<StudiedWord> studiedWords) {
super(id);
this.name = name;
this.description = description;
this.studiedWords = studiedWords;
}
#PreRemove
private void removeFromUserDictionary() {
userDictionary.getWordSets().removeIf(this::equals);
}
}
Here is part of my WordSetDao:
#Override
public Optional<WordSet> findByIdAndUsername(long id, String username) {
return findOrEmpty(() -> entityManager.createQuery(
"SELECT w FROM WordSet w " +
"WHERE w.userDictionary.user.username = :username AND w.id = :id", WordSet.class)
.setParameter("id", id)
.setParameter("username", username)
.getSingleResult());
}
#Override
public void deleteByIdAndUsername(long id, String username) {
entityManager.createQuery(
"DELETE FROM WordSet w WHERE w.userDictionary.user.username = :username AND w.id = :id")
.setParameter("id", id)
.setParameter("username", username)
.executeUpdate();
}
findByIdAndUsername works fine, but delete throws following exception:
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
at org.springframework.web.servlet.FrameworkServlet.doDelete(FrameworkServlet.java:894)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:654)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:65)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:167)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at io.github.solomkinmv.glossary.web.security.auth.JwtTokenAuthenticationProcessingFilter.successfulAuthentication(JwtTokenAuthenticationProcessingFilter.java:58)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:240)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:121)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:66)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:134)
at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:155)
at io.github.solomkinmv.glossary.web.controller.WordSetControllerTest.deleteWordSet(WordSetControllerTest.java:236)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)
at org.springframework.restdocs.JUnitRestDocumentation$1.evaluate(JUnitRestDocumentation.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:252)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:51)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: org.springframework.dao.InvalidDataAccessResourceUsageException: could not prepare statement; SQL [/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?)]; nested exception is org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:261)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:491)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao$$EnhancerBySpringCGLIB$$48825a47.deleteByIdAndUsername(<generated>)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl.deleteByIdAndUsername(WordSetServiceImpl.java:128)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl$$FastClassBySpringCGLIB$$c3da160a.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:656)
at io.github.solomkinmv.glossary.service.domain.impl.WordSetServiceImpl$$EnhancerBySpringCGLIB$$4b4a0f55.deleteByIdAndUsername(<generated>)
at io.github.solomkinmv.glossary.web.controller.WordSetController.deleteWordSet(WordSetController.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
... 70 more
Caused by: org.hibernate.exception.SQLGrammarException: could not prepare statement
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:106)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:182)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:78)
at org.hibernate.hql.internal.ast.exec.BasicExecutor.doExecute(BasicExecutor.java:78)
at org.hibernate.hql.internal.ast.exec.DeleteExecutor.execute(DeleteExecutor.java:107)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.executeUpdate(QueryTranslatorImpl.java:429)
at org.hibernate.engine.query.spi.HQLQueryPlan.performExecuteUpdate(HQLQueryPlan.java:374)
at org.hibernate.internal.SessionImpl.executeUpdate(SessionImpl.java:1348)
at org.hibernate.internal.QueryImpl.executeUpdate(QueryImpl.java:102)
at org.hibernate.jpa.internal.QueryImpl.internalExecuteUpdate(QueryImpl.java:405)
at org.hibernate.jpa.spi.AbstractQueryImpl.executeUpdate(AbstractQueryImpl.java:61)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao.deleteByIdAndUsername(WordSetJpaDao.java:50)
at io.github.solomkinmv.glossary.persistence.dao.impl.WordSetJpaDao$$FastClassBySpringCGLIB$$3577673c.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:721)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
... 98 more
Caused by: org.h2.jdbc.JdbcSQLException: Column "USERNAME" not found; SQL statement:
/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?) [42122-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:179)
at org.h2.message.DbException.get(DbException.java:155)
at org.h2.expression.ExpressionColumn.optimize(ExpressionColumn.java:147)
at org.h2.expression.Comparison.optimize(Comparison.java:178)
at org.h2.expression.ConditionAndOr.optimize(ConditionAndOr.java:130)
at org.h2.command.dml.Select.prepare(Select.java:856)
at org.h2.engine.Session.optimizeQueryExpression(Session.java:233)
at org.h2.expression.ConditionInSelect.optimize(ConditionInSelect.java:117)
at org.h2.command.dml.Delete.prepare(Delete.java:131)
at org.h2.command.Parser.prepareCommand(Parser.java:259)
at org.h2.engine.Session.prepareLocal(Session.java:561)
at org.h2.engine.Session.prepareCommand(Session.java:502)
at org.h2.jdbc.JdbcConnection.prepareCommand(JdbcConnection.java:1203)
at org.h2.jdbc.JdbcPreparedStatement.<init>(JdbcPreparedStatement.java:73)
at org.h2.jdbc.JdbcConnection.prepareStatement(JdbcConnection.java:287)
at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.tomcat.jdbc.pool.ProxyConnection.invoke(ProxyConnection.java:126)
at org.apache.tomcat.jdbc.pool.JdbcInterceptor.invoke(JdbcInterceptor.java:108)
at org.apache.tomcat.jdbc.pool.DisposableConnectionFacade.invoke(DisposableConnectionFacade.java:81)
at com.sun.proxy.$Proxy87.prepareStatement(Unknown Source)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:87)
at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:172)
... 113 more
Also, instead of
DELETE FROM WordSet w WHERE w.userDictionary.user.username = :username AND w.id = :id
I've tried following query:
DELETE FROM WordSet w
WHERE w IN
(SELECT ws FROM UserDictionary u
JOIN u.wordSets ws
WHERE u.user.username = :username AND ws.id = :id)
And it works on my H2 database, but fails on MySQL with following exception:
java.sql.SQLException: You can't specify target table 'word_set' for update in FROM clause
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar!/:5.1.40]
...
I've googled about subqueries and MySQL (one, two), but couldn't find out how to make such trick with JPA.
So, how to delete wordset? Is there something wrong with my entity mapping?
Here is my DB schema, it looks correct:
There are some many things that are wrong in this mapping:
Using EAGER fetching for every collection type is even more of an issue than your current problem. You are practically fetching the whole DB with any given query. Switching to FetchType.LAZY is better.
You said it works for H2, but that's not true:
Caused by: org.h2.jdbc.JdbcSQLException: Column "USERNAME" not found; SQL statement:
/* delete FKs in join table */ delete from word_set_studied_words where (word_set_id) in (select id from word_set where username=? and id=?) [42122-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
This type of query is not supported by MySQL:
DELETE FROM WordSet w
WHERE w IN
(SELECT ws FROM UserDictionary u
JOIN u.wordSets ws
WHERE u.user.username = :username AND ws.id = :id)
Joins are prohibited in bulk statements as explained in the Hibernate User Guide.
Now, depending on the number of entries you want to delete, a batch delete might be a better approach since you can prevent lost update anomaly.
You have a graph of interconnected entities here, so bulk delete might not help you anyway because you can't delete a parent record without deleting the child associations first.
Have you attempted a regular join in the delete? There is a similar question here:
Delete with Join in MySQL
...although not via JPA, but there is an accepted answer which shows and example of a join based delete, but it seems MySQL specific.
The trick is to specify the actual table in the delete clause itself, not just the from clause when you have other tables referenced via JOINs.
I'm not setup to test JPA against mysql at the moment. JQL might not be able to accommodate this, but you could probably do it with a native query.
java.sql.SQLException: You can't specify target table 'word_set' for
update in FROM clause
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) ~[mysql-connector-java-5.1.40.jar!/:5.1.40]
This exception is caused, because in MySQL you can not modify/delete the same table which you use in the SELECT part. Here documented this behaviour https://dev.mysql.com/doc/refman/5.6/en/update.html. The solutions 1) nesting the subquery deeper into a from clause or 2) join the table to itself
I'm trying to retrieve data using my Hibernate One to Many relation but failing. I'm trying to get all Bookmarked_rooms from Account. Here is my query:
public RoomList findBookmarkedRooms(String name) {
Query query = em.createQuery("FROM Room r WHERE r.roomid in(SELECT Room_id FROM Bookmarked_rooms a )");
List rooms = query.getResultList();;
if (rooms.size() == 0) {
return null;
} else {
return new RoomList(rooms);
}
}
Here is my Account and Room entity given separately:
public class Account {
#Id
#GeneratedValue
private Long id;
#Column(name="username",unique=true,nullable=false)
private String username;
#OneToMany
#JoinTable(name = "Bookmarked_rooms", joinColumns = #JoinColumn(name="Account_id"), inverseJoinColumns = #JoinColumn(name="Room_id"))
private Collection<Room> bookmarkedroom = new ArrayList<Room>();
//Getters and Setters
}
Room entity:
public class Room {
#Id
#GeneratedValue
private long roomid;
#Column(name="roomname",unique=true,nullable=false)
private String roomname;
private String description;
//Getters and Setters
}
When I run the query I've following error:
java.lang.IllegalArgumentException: org.hibernate.hql.internal.ast.QuerySyntaxException: Bookmarked_rooms is not mapped [FROM web.core.models.entities.Room r WHERE r.roomid in(SELECT Room_id FROM Bookmarked_rooms a )]
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1750)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1683)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:331)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
at com.sun.proxy.$Proxy29.createQuery(Unknown Source)
at web.core.repositories.jpa.JpaAccountRepo.findBookmarkedRooms(JpaAccountRepo.java:143)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:201)
at com.sun.proxy.$Proxy30.findBookmarkedRooms(Unknown Source)
at web.core.repositories.AccountRepoTest.testFindBookmarkedRooms(AccountRepoTest.java:115)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:217)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: Bookmarked_rooms is not mapped [FROM web.core.models.entities.Room r WHERE r.roomid in(SELECT Room_id FROM Bookmarked_rooms a )]
at org.hibernate.hql.internal.ast.QuerySyntaxException.generateQueryException(QuerySyntaxException.java:96)
at org.hibernate.QueryException.wrapWithQueryString(QueryException.java:120)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:234)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:158)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:131)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:93)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:167)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:301)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:236)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1800)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:328)
... 45 more
Caused by: org.hibernate.hql.internal.ast.QuerySyntaxException: Bookmarked_rooms is not mapped
at org.hibernate.hql.internal.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:189)
at org.hibernate.hql.internal.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:109)
at org.hibernate.hql.internal.ast.tree.FromClause.addFromElement(FromClause.java:95)
at org.hibernate.hql.internal.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:332)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3678)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:3567)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:708)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:564)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.collectionFunctionOrSubselect(HqlSqlBaseWalker.java:4905)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.inRhs(HqlSqlBaseWalker.java:4806)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:4473)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:2104)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:796)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:597)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:301)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:249)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:278)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:206)
... 53 more
I'm not understanding what is my actual error. If the error is my query, please some one demonstrate me the right query.
You could simply do it from the other end.
select markedroom from Account a
inner join a.bookmarkedroom markedroom
This could help you.
I keep getting org.hibernate.AssertionFailure: null identifier when trying to create an object. My classes are as follows:
public class User {
#Id
#Column(name = "user_id", nullable = false)
private String userId;
#OneToOne(cascade = CascadeType.ALL, optional = true, mappedBy = "user")
private UserDetail userDetail;
}
public class UserDetail {
#Id
#Column(name = "user_id", nullable = false)
private String userId;
#OneToOne(optional = false)
#PrimaryKeyJoinColumn
private User user;
}
#Service
public class UserDetailService {
#Autowired
private UserDetailRepository userDetailRepository;
public void create(UserDetail userDetail) {
userDetailRepository.saveAndFlush(userDetail);
}
}
And when I try to create a UserDetail:
String userId = "user";
User user = userService.findByUserId(userId);
UserDetail userDetail = new UserDetail();
userDetail.setUserId(userId);
userDetail.setUser(user);
user.setUserDetail(userDetail);
userDetailService.create(userDetail);
I get the exception
Stack trace of the exception:
org.hibernate.AssertionFailure: null identifier
at org.hibernate.engine.spi.EntityKey.<init>(EntityKey.java:68)
at org.hibernate.internal.AbstractSessionImpl.generateEntityKey(AbstractSessionImpl.java:327)
at org.hibernate.type.OneToOneType.isNull(OneToOneType.java:110)
at org.hibernate.type.EntityType.resolve(EntityType.java:500)
at org.hibernate.type.EntityType.replace(EntityType.java:366)
at org.hibernate.type.AbstractType.replace(AbstractType.java:178)
at org.hibernate.type.TypeHelper.replace(TypeHelper.java:211)
at org.hibernate.event.internal.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:444)
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:249)
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:317)
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:186)
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:85)
at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:876)
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:858)
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:863)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:1196)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291)
at com.sun.proxy.$Proxy45.merge(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:410)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.saveAndFlush(SimpleJpaRepository.java:421)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:416)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:401)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:373)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy49.saveAndFlush(Unknown Source)
at com.my.services.RepositoryUserDetailService.create(RepositoryUserDetailService.java:17)
at com.my.services.RepositoryUserDetailServiceTest.testCreate(RepositoryUserDetailServiceTest.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:217)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
I was stuck with a very similar problem. It seems that saving the UserDetails first, while there are also changes to the User (user.setUserDetail(userDetail)), requires an explicitly set cascade mode.
Adding the CascadeType.ALL to the UserDetails #OneToOne definition fixed it for me.
In my case it works by setting the relationship to null. Looks like it loads it anyway using the #Id.
UserDetail userDetail = new UserDetail();
userDetail.setUserId(userId);
userDetailService.create(userDetail);
For me it helped to upgrade from 4.2.x version of Hibernate to 4.3.11. The exception does not show up anymore, looks like a bug that has been fixed.
In my case, save parent before, add parent to relationship field of child (child haven't id), after save child (id get from Parent Entity)
references:
https://www.baeldung.com/hibernate-identifiers
#Entity
public class UserProfile {
#Id
private long profileId;
#OneToOne
#MapsId
private User user;
// ...
}
#Test
public void whenSaveDerivedIdEntity_thenOk() {
User user = new User();
session.save(user);
UserProfile profile = new UserProfile();
profile.setUser(user);
session.save(profile);
assertThat(profile.getProfileId()).isEqualTo(user.getUserId());
}
I had a similar issue and I've managed to solve it.
Try this:
#OneToOne(cascade = CascadeType.MERGE, optional = false)
#PrimaryKeyJoinColumn(name = "user_id")
private User user;
From what I've been able to find out, when persisting UserDetail, Hibernate takes a different code path and an underlying merge() call is being made instead of persist(), as you have stated in your issue. One fix could be adding CascadeType.MERGE.
Please have in mind that this fix does have the effect that the underlying User could be updated.
Another possible fix could be to use Spring Data Persistable interface, that gives you control of determining if an object is a new object or not, making the repository save method take the correct path (merge or persist).
Sources:
https://doctorjw.wordpress.com/2020/09/23/spring-boot-2-2-x-and-onetoone-null-identifier/
https://github.com/spring-projects/spring-boot/issues/20181
https://hibernate.atlassian.net/browse/HHH-13413?attachmentOrder=asc
Also answered here: https://stackoverflow.com/a/74500104/11667138
I have the following specification which is supposed to check if the Magazines of a File are in a list of Magazines under a Subscription:
public static Specification<File> getContainingMagazines(final long subscriptionId){
return new Specification<File>() {
#Override
public Predicate toPredicate(Root<File> root, CriteriaQuery<?> query, CriteriaBuilder cb) {
Subquery<Subscription> subscriptionSubquery = query.subquery(Subscription.class);
Root<Subscription> subscriptionRoot = subscriptionSubquery.from(Subscription.class);
ListJoin<Subscription, Magazine> subscriptionMagazineJoin = subscriptionRoot.join(Subscription_.magazines);
Path<Long> subscriptionIdPath = subscriptionRoot.get(Subscription_.id);
subscriptionSubquery.
select(subscriptionRoot).
where(cb.equal(subscriptionIdPath, subscriptionId));
ListJoin<File, Magazine> magazinesJoin = root.join(File_.magazines);
return cb.and(magazinesJoin.get(Magazine_.id).in(subscriptionMagazineJoin.get(Magazine_.id)));
}
};
}
And in my service I'm doing this:
public int findFilesWithSubscription(long subscriptionId) {
List<File> fileList = fileRepository.findAll(FileSpecs.getContainingMagazines(subscriptionId));
return fileList.size();
}
The entities involved are the following:
#Entity
#Table(name = "nim_file")
public class File
#ManyToMany(fetch = FetchType.LAZY)
#JoinTable(
name = "nim_file_magazines",
joinColumns = #JoinColumn(name = "file_id"),
inverseJoinColumns = #JoinColumn(name = "magazine_id")
)
private List<Magazine> magazines;
and
#Entity
#Table(name = "nim_subscription")
public class Subscription
#ManyToMany(fetch = FetchType.EAGER)
#JoinTable(name = "nim_subscription_magazines",
joinColumns = #JoinColumn(name = "subscription_id"),
inverseJoinColumns = #JoinColumn(name = "magazine_id")
)
private List<Magazine> magazines;
finally
#Entity
#Table(name = "nim_magazine")
public class Magazine
This last one is a lookup table pretty much.
Now I'm testing using DWR, because I couldn't find a better way to test quickly and so far there is no stack trace nor sql shown even though hibernate has setShowSql(true). I only get this message:
2300777 [http-bio-9090-exec-4] WARN o.d.dwrp.BaseCallMarshaller - --Erroring: batchId[2] message[java.lang.NullPointerException]
So my questions are these:
What am I doing wrong?
How can I test/debug specifications and/or predicates better than dwr so I can get stack traces and such?
Edit
Upon some move to a Junit test class I obtained the following stack trace:
java.lang.NullPointerException
at org.hibernate.hql.internal.ast.tree.InLogicOperatorNode.isNodeAcceptable(InLogicOperatorNode.java:99)
at org.hibernate.hql.internal.ast.tree.InLogicOperatorNode.initialize(InLogicOperatorNode.java:79)
at org.hibernate.hql.internal.ast.HqlSqlWalker.prepareLogicOperator(HqlSqlWalker.java:1224)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:4242)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1947)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:794)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:595)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:299)
at org.hibernate.hql.internal.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:247)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:248)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:183)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:105)
at org.hibernate.engine.query.spi.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
at org.hibernate.engine.query.spi.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:168)
at org.hibernate.internal.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:219)
at org.hibernate.internal.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:197)
at org.hibernate.internal.SessionImpl.createQuery(SessionImpl.java:1736)
at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:452)
at org.hibernate.ejb.criteria.CriteriaQueryCompiler.compile(CriteriaQueryCompiler.java:221)
at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:587)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:289)
at com.sun.proxy.$Proxy109.createQuery(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.getQuery(SimpleJpaRepository.java:491)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:342)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:405)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:390)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:344)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:266)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:111)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
at com.sun.proxy.$Proxy153.findAll(Unknown Source)
at test.nimchip.repository.FileRepositoryTest.testVictimizationFetch(FileRepositoryTest.java:118)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:72)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:81)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:216)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:82)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:60)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:67)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:162)
at org.junit.runners.Suite.runChild(Suite.java:127)
at org.junit.runners.Suite.runChild(Suite.java:26)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
I always found the Criteria API very cumbersome to use and it may generate horrible SQL statements even for trivial joins.
Try this HQL query instead:
select f
from File f
inner join f.magazines file_magazine
where exists (
select s
from Subscription s
inner join s.magazines subscr_magazine
where s.id = :subscription_id and subscr_magazine.id = file_magazine.id
)
While you can also check any/some/member of, those expressions can lead to very complicated SQL queries. Try the suggested sub-select and see how it goes.
I am not sure if this works but you can also use the with extra join clause:
select f
from File f
inner join f.magazines file_magazine
where exists (
select s
from Subscription s
inner join s.magazines subscr_magazine with subscr_magazine.id = file_magazine.id
where s.id = :subscription_id
)
For logging al SQL queries along with parameters you can set up a datasurce-proxy in front of your application data source.
I am trying to implement the following diagram in Hibernate, JPA.
I tried to implement it this way.
For the farm
#Entity
public class Farm implements Serializable{
#OneToMany(mappedBy = "farm", cascade = { CascadeType.ALL }, targetEntity=AbstractAnimals.class, fetch=FetchType.LAZY)
private List<AbstractAnimal> animals = new ArrayList<AbstractAnimals>();
}
For the Abstract Annimal
#Entity
#Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
public abstract class AbstractAnimal implements Serializable{
#Id
private int id;
#ManyToOne(fetch = FetchType.LAZY)
#JoinColumn(name = "farmId", nullable = false)
private Farm farm;
... other attributes and getter and setter
}
For the Abstract Mammalian
#MappedSuperClass
public abstract class AbstractMammalian extends AbstractAnimal implements Serializable{
... other attributes and getter and setter
}
For all the annimals
#Entity
public abstract class 'Animal' extends 'supertype' implements Serializable{
... other attributes and getter and setter
}
When I tried to get all the farm animals I get the following error
org.hibernate.exception.SQLGrammarException: could not initialize a collection: [my.example.Farm.animals#24]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.loader.Loader.loadCollection(Loader.java:2173)
at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:62)
at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:627)
at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:83)
at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1863)
at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:369)
at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:111)
at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:272)
at my.example.persistence.Farm.getAnnimals(Farm.java:132)
at my.example.DTOFactory.updateFarmDTO(DTOFactory.java:269)
at my.example.DTOFactory.createFarmDTO(DTOFactory.java:250)
at my.example.DTOFactory.createChickenDTO(DTOFactory.java:183)
at my.example.ChickenServiceImpl.createChicken(ChickenServiceImpl.java:62)
at my.example.ChickenServiceTest.createChickenWithHome(ChickenServiceTest.java:243)
at my.example.ChickenServiceTest.testRejectChickenHome(ChickenServiceTest.java:186)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.sql.SQLSyntaxErrorException: incompatible data types in combination
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:534)
at org.hibernate.jdbc.AbstractBatcher.getPreparedStatement(AbstractBatcher.java:452)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1700)
at org.hibernate.loader.Loader.doQuery(Loader.java:801)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
at org.hibernate.loader.Loader.loadCollection(Loader.java:2166)
... 40 more
Caused by: org.hsqldb.HsqlException: incompatible data types in combination
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.types.BitType.getAggregateType(Unknown Source)
at org.hsqldb.types.Type.getAggregateType(Unknown Source)
at org.hsqldb.QuerySpecification.resolveTypesPartOne(Unknown Source)
at org.hsqldb.QueryExpression.resolveTypesPartOne(Unknown Source)
at org.hsqldb.QueryExpression.resolveTypes(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableSubqueryOrNull(Unknown Source)
at org.hsqldb.ParserDQL.readTableOrSubquery(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableReference(Unknown Source)
at org.hsqldb.ParserDQL.XreadFromClause(Unknown Source)
at org.hsqldb.ParserDQL.XreadTableExpression(Unknown Source)
at org.hsqldb.ParserDQL.XreadQuerySpecification(Unknown Source)
at org.hsqldb.ParserDQL.XreadSimpleTable(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryPrimary(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryTerm(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpressionBody(Unknown Source)
at org.hsqldb.ParserDQL.XreadQueryExpression(Unknown Source)
at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source)
at org.hsqldb.ParserCommand.compilePart(Unknown Source)
at org.hsqldb.ParserCommand.compileStatement(Unknown Source)
at org.hsqldb.Session.compileStatement(Unknown Source)
at org.hsqldb.StatementManager.compile(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source)
... 49 more
Edit
EntityManager manager = null;
EntityTransaction tx = null;
TaskDTO result = null;
try {
manager = PersistenceUtils.getEntityManager();
try
{
tx = manager.getTransaction();
tx.begin();
Farm farm = manager.find(Farm.class,
Farmer farmer = manager.find(farmer.class, farmerDtoID);
int status = AnimalService.IDLE;
if (birth.before(new Date())){
status = TaskService.UNBORN;
}
Chicken newChicken = new Chicken(name, farm, user, birth, death, status);
manager.persist(newChicken);
tx.commit();
result = DTOFactory.createChickenDTO(newChicken, true);
}
finally
{
if (tx.isActive())
{
tx.rollback();
}
}
}
finally
{
if (manager != null)
{
manager.close();
}
}
return result;
I have no idea what you're doing wrong. You just haven't shown us enough code to detect the problem.
Here is how you can do it right:
https://bitbucket.org/twic/farm/src
That is an implementation of the same object model, but in a way which works fine. There is a Gradle script which will generate and apply the relevant SQL; you can then run the Main class to insert and query some data, including calling Farm.getAnimals().
There are a few differences between my code and yours. Mine is simpler; i have left out the various unnecessary things like specifying column names, explicitly stating that collections are lazy, making entity classes serializable, etc. I have also opted to annotate AbstractMammal as an #Entity, not a #MappedSuperclass. I saw no reason not to. I tried it both ways, and both ways worked.
So, whatever it is that's going wrong for you, it is a difference between your code and mine. It could be a bug in your JPA implementation. It is more likely to be a bug in your annotations. I suggest you clone my code, make it run, then start modifying it bit by bit to be more like your code, and see when it breaks.
Disclaimer: It's just a guess.
Try to do without forced collection initialization. Something like that:
#Entity
public class Farm implements Serializable{
#OneToMany(mappedBy = "farm", cascade = { CascadeType.ALL }, targetEntity=AbstractAnimals.class, fetch=FetchType.LAZY)
private List<AbstractAnimal> animals;
}
I'm using the same here with a few differences.
Check these things too:
1. Set Fetch Type of farm to EAGER in your AbstractAnimal class.
#ManyToOne(fetch = FetchType.EAGER)
#JoinColumn(name = "farmId", nullable = false)
private Farm farm;
2. Put this annotation above your getter. #XmlTransient
Ok thanks to Tom Anderson I have managed to solve my problem. The solution was to use Hibernate 4.1 instead of 3.6 and change the methods in the persistance helper from 'Session'.connection()
to
'Session'.doWork(new Work() {
#Override
public void execute(Connection c) throws SQLException {
}
}