I define the following entities :BaseEntity , magasin and article :
#Entity(name = "magasin")
#Table(name = "magasin")
public class Magasin extends BaseEntity {
private static final long serialVersionUID = 1L;
#Basic
#Size(min=5, max=100, message="The name must be between {min} and {max} characters")
private String name;
#OneToMany(cascade=CascadeType.ALL, mappedBy="magasin")
#Valid
private Set<Article> article;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<Article> getArticle() {
return article;
}
public void setArticle(Set<Article> article) {
this.article = article;
}
}
#Entity(name="article")
#Table(name="article")
public class Article extends BaseEntity {
private static final long serialVersionUID = 1L;
#ManyToOne
private Magasin magasin;
#Basic
#Size(min=5, max=100, message="The name must be between {min} and {max} characters")
private String name;
#Basic
private float price;
public Magasin getMagasin() {
return magasin;
}
public void setMagasin(Magasin magasin) {
this.magasin = magasin;
}
public String getName() {
return name;
}
public void setName(String nom) {
this.name = nom;
}
public float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}
}
#MappedSuperclass
public class BaseEntity {
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer id;
public void setId(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
public boolean isNew() {
return (this.id == null);
}
I try to add a new entity bit it didn't work .No new entity will be inserted .there is no error .How can I modify it in order to add a new entity for article ?
Function from GenericDao
public T add(T entity) {
System.out.println("start");
getHibernateTemplate().save(entity);
System.out.println("end");
return entity;
}
Flex Main
private function submitData(event:Event):void {
var article_ajout=new Article();
article_ajout.name=pop1.art_name.text;
article_ajout.price=parseFloat(pop1.art_prix.text);
article_ajout.magasin=Magasin(iMagasin.selectedItem);
Alert.show("test");
articleService.add(article_ajout);
removeMe(event);
}
Related
I'm experimenting with mapstruct and follow this tutorial:
mapstruct tut
I have this entity:
#Entity
public class Company {
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq_company")
#SequenceGenerator(name = "seq_company", allocationSize = 1)
#Column(nullable = false, updatable = false)
private Long id;
private String name;
private String shortName;
public Company() {
}
public Company(Long id, String name, String shortName) {
this.id = id;
this.name = name;
this.shortName = shortName;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getShortName() {
return shortName;
}
public void setShortName(String shortName) {
this.shortName = shortName;
}
}
And this is the simple dto:
public class CompanyDto {
#JsonProperty("id")
private Long id;
#JsonProperty("name")
private String name;
#JsonProperty("shortName")
private String shortName;
}
And here is the mapper interface:
#Mapper(componentModel = "spring")
public interface CompanyMapper {
CompanyDto companyToCompanyDto(Company company);
Company companyDtoToCompany(CompanyDto companyDto);
List<CompanyDto> companiesToCompanyDtos(List<Company> companies);
}
I certanly oversee something, because there is no setters in the generated implementation, f. e.:
#Override
public Company companyDtoToCompany(CompanyDto companyDto) {
if ( companyDto == null ) {
return null;
}
Company company = new Company();
return company;
}
What goes here wrong?
I've noticed that your CompanyDto class has private fields but no getters or setters. There is no standard way to access the fields in that class. You might need to add those in order to map in or out of that class.
In my project I try yo use Spring data Jpa. My find methods(findById, findAll) works correctly, but delete and save method works with problems. Delete method delete only from duck table. Save doesn't work:
Exception in thread "main" org.springframework.orm.jpa.JpaObjectRetrievalFailureException: Unable to find springdata.entities.FrogJpa with id 2; nested exception is javax.persistence.EntityNotFoundException: Unable to find springdata.entities.FrogJpa with id 2
I have 2 entities: Frog and Duck. Every ducks have 1 Frog(OneToOne). There are problems with entities relationship?
There are my entities class:
#Entity
#Table(name = "DUCKS")
public class DuckJpa implements Serializable {
#Id
private int id;
#Column(name = "NAME")
private String name;
#Column(name = "FLY")
private String flyBehavior;
#Column(name = "QUACK")
private String quackBehavior;
#OneToOne(optional = false)
#JoinColumn(name = "FROG_ID", unique = true, nullable = false, updatable = false)
private FrogJpa frogJpa;
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setFlyBehavior(String flyBehavior) {
this.flyBehavior = flyBehavior;
}
public void setQuackBehavior(String quackBehavior) {
this.quackBehavior = quackBehavior;
}
public void setFrogJpa(FrogJpa frogJpa) {
this.frogJpa = frogJpa;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public String getFlyBehavior() {
return flyBehavior;
}
public String getQuackBehavior() {
return quackBehavior;
}
public FrogJpa getFrogJpa() {
return frogJpa;
}
And Frog:
#Entity
#Table(name = "FROGS")
public class FrogJpa {
#OneToOne(optional = false, mappedBy = "frogJpa")
private DuckJpa duckJpa;
#Id
private int id;
#Column(name = "name")
private String name;
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setDuckJpa(DuckJpa duckJpa) {
this.duckJpa = duckJpa;
}
public int getId() {
return id;
}
public String getName() {
return name;
}
public DuckJpa getDuckJpa() {
return duckJpa;
}
}
My service class:
public interface DuckService {
List<DuckJpa> findAll();
Optional<DuckJpa> findById(Integer i);
DuckJpa save(DuckJpa duckJpa);
void delete(DuckJpa duckJpa);
}
And it's implementation:
#Service("springJpaDuckService")
#Transactional
public class DuckServiceImpl implements DuckService {
#Autowired
private DuckJpaRepository duckJpaRepository;
#Transactional(readOnly = true)
public List<DuckJpa> findAll() {
return new ArrayList<>(duckJpaRepository.findAll());
}
#Override
public Optional<DuckJpa> findById(Integer i) {
return duckJpaRepository.findById(i);
}
#Override
public DuckJpa save(DuckJpa duckJpa) {
duckJpaRepository.save(duckJpa);
return duckJpa;
}
#Override
public void delete(DuckJpa duckJpa) {
duckJpaRepository.delete(duckJpa);
}
Use #OneToOne(cascade=CascadeType.ALL, fetch = FetchType.LAZY).
For more information please refer What is cascading in Hibernate?
I have one-to-one relationship with the following configuration:
#Entity
#Table(name = "org")
#SequenceGenerator(name = "default_gen", sequenceName = "haj_rasoul", allocationSize = 1)
public class Organization extends BaseEntity<Long> {
private String name;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
and this class:
#Entity
#Table(name = "product")
#GenericGenerator(name = "default_gen", strategy = "foreign", parameters = #Parameter(name = "property", value = "reza"))
public class Product extends BaseEntity<Long> {
#Column(name = "DD")
private String description;
#Column(name = "PP")
private BigDecimal price;
#Column(name = "MM")
private String imageUrl;
#OneToOne
#PrimaryKeyJoinColumn(referencedColumnName = "id")
private Organization reza;
public Organization getReza() {
return reza;
}
public void setReza(Organization reza) {
this.reza = reza;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public String getImageUrl() {
return imageUrl;
}
public void setImageUrl(String imageUrl) {
this.imageUrl = imageUrl;
}
}
and the BaseEntity:
#MappedSuperclass
public abstract class BaseEntity<T> implements Serializable {
private static final long serialVersionUID = 4295229462159851306L;
#Id
#GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "default_gen")
private T id;
#Column(name = "updatedby")
private Date updatedDate;
public Date getUpdatedDate() {
return updatedDate;
}
public void setUpdatedDate(Date updatedDate) {
this.updatedDate = updatedDate;
}
public T getId() {
return id;
}
public void setId(T id) {
this.id = id;
}
}
When the application is started with the update mode for creation the models,
they are created successfully but foreign key Organization does not exist in the Product, another hand the record of Organization can be deleted in the event that it is in the Product as foreign key.
Where is wrong?
How do i fix this problem?
I define the following entities :BaseEntity , magasin and article :
#Entity(name = "magasin")
#Table(name = "magasin")
public class Magasin extends BaseEntity {
private static final long serialVersionUID = 1L;
#Basic
#Size(min=5, max=100, message="The name must be between {min} and {max} characters")
private String name;
#OneToMany(cascade=CascadeType.ALL, mappedBy="magasin")
#Valid
private Set<Article> article;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<Article> getArticle() {
return article;
}
public void setArticle(Set<Article> article) {
this.article = article;
}
}
#Entity(name="article")
#Table(name="article")
public class Article extends BaseEntity {
private static final long serialVersionUID = 1L;
#ManyToOne
private Magasin magasin;
#Basic
#Size(min=5, max=100, message="The name must be between {min} and {max} characters")
private String name;
#Basic
private float price;
public Magasin getMagasin() {
return magasin;
}
public void setMagasin(Magasin magasin) {
this.magasin = magasin;
}
public String getName() {
return name;
}
public void setName(String nom) {
this.name = nom;
}
public float getPrice() {
return price;
}
public void setPrice(float price) {
this.price = price;
}
}
#MappedSuperclass
public class BaseEntity {
#Id
#GeneratedValue(strategy=GenerationType.IDENTITY)
private Integer id;
public void setId(Integer id) {
this.id = id;
}
public Integer getId() {
return id;
}
public boolean isNew() {
return (this.id == null);
}
}
How can create a hql query in order to retrieve all Article for a magasin selected ?
I try this
#Override
public List<Article> findArticle(Magasin magasin) {
String query = "From Article m where m.magasin.id = "+magasin.getId();
System.out.print(query);
Session session = getSessionFactory().getCurrentSession();
if((session.createQuery(query).list()!=null) && (session.createQuery(query).list().size()!=0))
return (List<Article>) session.createQuery(query).list();
else
return null;
}
But it returns nothing , always null .How can I resolve it ?
I don't know the type of your magasin id so adapt the code below.
First get the Magasin instance for the id:
Magasin mag = (Magasin)session.get(Magasin.class, id);
Next you can access the articles for the magasin mag via accessor
Set<Article> articles = mag.getArticle();
Try this:
"Select * From Article,Mgasin where Article.mgasin.id = "+magasin.getId();
I have a user dao
#Entity
#Table(name="EBIGUSERTIM")
public class EbigUser {
private String id;
private Integer source;
private String entryscheme;
private String fullName;
private String email;
private Long flags;
private String status;
private String createdBy;
private Date createdStamp;
private String modifiedBy;
private Date modifiedStamp;
#Id
#Column(name="ID")
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
#Id
#Column(name="SOURCE")
public Integer getSource() {
return source;
}
public void setSource(Integer source) {
this.source = source;
}
#Column(name="ENTRYSCHEME")
public String getEntryscheme() {
return entryscheme;
}
public void setEntryscheme(String entryscheme) {
this.entryscheme = entryscheme;
}
#Column(name="FULLNAME")
public String getFullName() {
return fullName;
}
public void setFullName(String fullName) {
this.fullName = fullName;
}
#Column(name="EMAIL")
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
#Column(name="FLAGS")
public Long getFlags() {
return flags;
}
public void setFlags(Long flags) {
this.flags = flags;
}
#Column(name="STATUS")
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
#Column(name="CREATEDBY")
public String getCreatedBy() {
return createdBy;
}
public void setCreatedBy(String createdBy) {
this.createdBy = createdBy;
}
#Column(name="CREATEDSTAMP")
public Date getCreatedStamp() {
return createdStamp;
}
public void setCreatedStamp(Date createdStamp) {
this.createdStamp = createdStamp;
}
#Column(name="MODIFIEDBY")
public String getModifiedBy() {
return modifiedBy;
}
public void setModifiedBy(String modifiedBy) {
this.modifiedBy = modifiedBy;
}
#Column(name="MODIFIEDSTAMP")
public Date getModifiedStamp() {
return modifiedStamp;
}
public void setModifiedStamp(Date modifiedStamp) {
this.modifiedStamp = modifiedStamp;
}
i am selecting 2 rows out of the db. The sql works
select * from ebigusertim where id='blah'
It returns 2 distinct rows. When i query the data using hibernate, it appears that the object memory is not being allocated for each entry in the list. Thus, i get 2 entries in the list with the same object.
Criteria userCriteria = session.createCriteria(EbigUser.class);
userCriteria.add(Restrictions.eq("id", id));
userlist = userCriteria.list();
Why are you defining two id columns(both id and source are mapped with annotation #Id)?
#Id
#Column(name="ID")
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
#Id
#Column(name="SOURCE")
public Integer getSource() {
return source;
}
Please remove one if it is by mistake. If both together make composite key, map them accordingly e.g.
#Embeddable
public class UserPK implements Serializable {
#Column(name = "ID", nullable = false)
private String id;
#Column(name = "SOURCE", nullable = false)
private Integer source;
.....
.....
}
Use this new class in you original class as Id as below:
#EmbeddedId
private UserPK userPK;
Hope this helps.