I am new to java and trying to run sample programs using JPA. Code is getting compiled successfully, but when I run it, it is failing with below error.
Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named FirstProject: The following providers:
oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
oracle.toplink.essentials.PersistenceProvider
Returned null to createEntityManagerFactory.
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:154)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83)
at com.infybank.services.AccountDS.main(AccountDS.java:35)
Can anyone tell me what exactly is provider in persistence.xml and how to decide what should be provided. Thanks in Advance.
Below is what I provided in persistence.xml (I got it from a sample training material)
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="FirstProject">
<provider>oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider</provider>
<class>com.infybank.entities.Account</class>
<properties>
<property name="toplink.jdbc.url" value="jdbc:oracle:thin:#localhost:1521:testdb"/>
<property name="toplink.jdbc.user" value="user"/>
<property name="toplink.jdbc.driver" value="oracle.jdbc.driver.OracleDriver"/>
<property name="toplink.jdbc.password" value="password"/>
<property name="toplink.ddl-generation" value="create-tables"/>
<property name="toplink.jdbc.read-connections.max" value="1"/>
<property name="toplink.jdbc.read-connections.min" value="1"/>
<property name="toplink.jdbc.write-connections.max" value="1"/>
<property name="toplink.jdbc.write-connections.min" value="1"/>
<property name="toplink.logging.level" value="SEVERE" />
</properties>
</persistence-unit>
</persistence>
Do you have the toplink-essentials.jar in your classpath? Its the one that includes you oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider package...
Related
i've tried to put my persistence.xml in various parts of my Java project and i call it with this command:
EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("my-unit");
but it returns me an error:
Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named my-unit
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:69)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
at main.MainClass.main(MainClass.java:81)
Process finished with exit code 1
my persistence.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="my-unit">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
<property name="hibernate.connection.url" value="jdbc:mysql://localhost:3306/test"/>
<property name="hibernate.connection.autocommit" value="false"/>
<property name="hibernate.connection.username" value="root"/>
<property name="hibernate.connection.password" value=""/>
<property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect"/>
<property name="hibernate.connection.CharSet" value="utf8"/>
<property name="hibernate.connection.characterEncoding" value="utf8"/>
<property name="hibernate.connection.useUnicode" value="true"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<!-- use encache provider-->
<!--<property name="hibernate.cache.region.factory_class"-->
<!--value="org.hibernate.cache.ehcache.EhCacheRegionFactory"/>-->
<!--<property name="hibernate.javax.cache.provider" value="org.ehcache.jsr107.EhcacheCachingProvider"/>-->
<!--<!–use second level cache–>-->
<!--<property name="hibernate.cache.use_second_level_cache" value="true"/>-->
<!--<!–use 3rd level cache–>-->
<!--<property name="hibernate.cache.use_query_cache" value="true"/>-->
</properties>
</persistence-unit>
I use IntelliJ as IDE for Java and the persistence.xml file is under META-INF folder in resources folder, i have tried to check the project structure and all looks like nice.
I use hibernate as maven repository.
Thanks for helping
You need to define the persistence provider name
<provider>org.hibernate.ejb.HibernatePersistence</provider>
That will solve the problem.
I'm trying to integrate Spring with JPA. I have defined one entity and added as mapping file under persistence.xml, but it throws the exception
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: MyPersistence] Unable to resolve named mapping-file [net.bb.spring.entities.DealDetailsEntity]
My persistence.xml
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0">
<persistence-unit name="MyPersistence">
<description>AS400 Configuration for BB</description>
<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
<mapping-file>net.bb.spring.entities.DealDetailsEntity</mapping-file>
<properties>
<property name="javax.persistence.jdbc.driver" value="com.ibm.as400.access.AS400JDBCDriver" />
<property name="javax.persistence.jdbc.url" value="jdbc:as400://172.21.100.101/BB" />
<property name="javax.persistence.jdbc.user" value="ROOT" />
<property name="javax.persistence.jdbc.password" value="ROOT" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.hbm2ddl.auto" value="update" />
</properties>
</persistence-unit>
</persistence>
From oracle docs about persistence.xml file:
<mapping-file> element: specifies one or more object-relational
mapping XML files (orm.xml files).
What your <mapping-file> is pointing at is an entity which is a java class. This should not pass to <mapping-file> but to a <class> tag instead.
e.g.
<class>net.bb.spring.entities.DealDetailsEntity</class>
I found some solutions in the forum, but they not working for me.
The problem is that when I run main method I receive this exception -
PersistenceException: No Persistence provider for EntityManager
On the imane is my persistance.xml file pat but it's not working. I try to change file path to web/WEB-INF/classes/META-INF, but its's still not working.
Here my full persistance.xml source
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence" version="2.1">
<persistence-unit name="StudentPU">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>com.classes.StudentBean</class>
<properties>
<property name="hibernate.connection.url" value="jdbc:h2:tcp://localhost/~/Students"/>
<property name="hibernate.connection.driver_class" value="org.h2.Driver"/>
<property name="hibernate.connection.username" value="doncho"/>
<property name="hibernate.connection.password" value=""/>
<property name="hibernate.archive.autodetection" value="class"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.format_sql" value="true"/>
<property name="hbm2ddl.auto" value="update"/>
<property name="hibernate.temp.use_jdbc_metadata_defaults"
value="false" />
<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
</properties>
</persistence-unit>
</persistence>
And one more thing? Why HibernatePersistence is stricken?
I resolve "stricken" mistake like that -
Is it correct?
But anyway the PersistenceException: No Persistence provider for EntityManager still there.
I tryed - this and this - nothings happened
I would be grateful for any ideas to resolve this error because #Entity method is important to me.
Best regards,
D. Balamjiev
The workig method for me is to create this path in my project tree:
web/WEB-INF/classes/META-INF/persistence.xml
This is working path when We create Web Applications with IntelliJ.
I've setted up Hibernate on Glassfish 4.1 but I'm having problems with persistence.
I'm able to read data, but cannot write to BD (changes appear to not be commited).
My current persistent.xml looks like this:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="myPU" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>jdbc/myDataSource</jta-data-source>
<properties>
<property name="transaction.manager_lookup_class" value="org.hibernate.transaction.SunONETransactionManagerLookup"/>
<property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.CMTTransactionFactory"/>
<property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.SunOneJtaPlatform"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.SQLServer2008Dialect"/>
</properties>
</persistence-unit>
</persistence>
My connection pool config on Glassfish is:
<jdbc-connection-pool datasource-classname="com.microsoft.sqlserver.jdbc.SQLServerDataSource" steady-pool-size="2" name="myPool" res-type="javax.sql.DataSource">
<property name="TrustServerCertificate" value="false"></property>
<property name="User" value="sa"></property>
<property name="LastUpdateCount" value="true"></property>
<property name="ResponseBuffering" value="adaptive"></property>
<property name="URL" value="jdbc:sqlserver://server\bd"></property>
<property name="XopenStates" value="false"></property>
<property name="PacketSize" value="8000"></property>
<property name="Password" value="mypass"></property>
<property name="ApplicationName" value="Microsoft JDBC Driver for SQL Server"></property>
<property name="DatabaseName" value="MyDB"></property>
<property name="Encrypt" value="false"></property>
<property name="LockTimeout" value="-1"></property>
<property name="SendStringParametersAsUnicode" value="true"></property>
<property name="MultiSubnetFailover" value="false"></property>
<property name="ApplicationIntent" value="readwrite"></property>
<property name="LoginTimeout" value="15"></property>
<property name="WorkstationID" value="My-MacBook-Pro.local"></property>
<property name="ServerName" value="xpto"></property>
<property name="PortNumber" value="1433"></property>
<property name="SelectMethod" value="direct"></property>
<property name="SendTimeAsDatetime" value="true"></property>
</jdbc-connection-pool>
Datasource config:
<jdbc-resource pool-name="myPool" jndi-name="jdbc/myDataSource"></jdbc-resource>
My EJB looks like this:
#PersistenceContext
private EntityManager em;
public void updateUser(User u) {
em.merge(u);
}
Any idea how I can fix that?
Thanks!
In my case, I was running the Hibernate 5 with tomcat and stop working when I changed to glassfish 4.1
The reason was the oldest jboss-logging.jar at: "YOUR_GLASSFISH_FOLDER/glassfish/modules"
Why? The hibernate 5 has dependency with the newest version of jboss-logging, and the glassfish uses the oldest version even if you declare inside your POM file the newest version. Actually I'm using:
org.jboss.logging jboss-logging 3.3.0.Final
Then I downloaded and replace the old .jar inside modules path and back to work, I spent 2 days trying to solve that and I hope it helps some future issues =D
I used this link to help me: https://medium.com/#mertcal/using-hibernate-5-on-payara-cc242212a5d6#.npq2hdprz
Could you please try the following configuration:
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
<persistence-unit name="YOUR_PERSISTANCE_NAME" transaction-type="RESOURCE_LOCAL">
<provider>YOUR_PROVIDER</provider>
<!-- ENTITIES -->
<class>com.company.project....EntityA</class>
<class>com.company.project....EntityB</class>
<class>com.company.project....EntityC</class>
<properties>
<property name="javax.persistence.jdbc.url" value="YOUR_URL_TO_DB" />
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver" />
<property name="javax.persistence.jdbc.user" value="USER" />
<property name="javax.persistence.jdbc.password" value="PASS" />
<property name="eclipselink.logging.level" value="INFO" />
<property name="eclipselink.target-database" value="PostgreSQL" />
</properties>
</persistence-unit>
Running very simple example in a multi-threading java 7 application:
em.getTransaction().begin();
SimpleObject simpleObject = ...;
em.persist(simpleObject);
em.getTransaction().commit();
causes following error:
java.lang.IllegalStateException: Exception Description: Transaction is currently active
Running in a one thread all is fine.
My persistence.xml settings:
<persistence version="2.1"
xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="mongo" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>test\SimpleObject</class>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.target-database" value="org.eclipse.persistence.nosql.adapters.mongo.MongoPlatform" />
<property name="eclipselink.nosql.connection-spec" value="org.eclipse.persistence.nosql.adapters.mongo.MongoConnectionSpec" />
<property name="eclipselink.nosql.property.mongo.host" value="localhost" />
<property name="eclipselink.nosql.property.mongo.port" value="27017" />
<property name="eclipselink.nosql.property.mongo.db" value="test" />
<property name="eclipselink.logging.level" value="ALL" />
<property name="eclipselink.nosql.property.mongo.write-concern" value="MAJORITY" />
<property name="eclipselink.jpa.uppercase-column-names" value="true" />
</properties>
</persistence-unit>
</persistence>
Version of used libraries:
EclipseLink 2.5.2,
mongoDB 2.6.1,
jpa 2.1.0,
mongo-java-driver-2.12.2,
eclipse.persistence.nosql-2.5.1
Is there anything wrong?
Thank you!