entity « Composite « JPA Q&A

1. How to map composite key of entity in JPA?    stackoverflow.com

I have the REGION table:

    id number,
    dateCreation Date
I have a LOCALE table:
     locale String
I ...

2. Update of of Composite Entity fails    stackoverflow.com

I have Person entity which has composition with Location Entity

@ManyToOne(fetch = FetchType.EAGER, cascade =
{ CascadeType.PERSIST, CascadeType.MERGE })
{org.hibernate.annotations.CascadeType.SAVE_UPDATE })
public Location getLocation()
    return location;
And Location Entity has Name as Id
public ...

3. JPA entities -- org.hibernate.TypeMismatchException    stackoverflow.com

Environment: JDK 1.6, JEE5 Hibernate Core 3.3.1.GA, Hibernate Annotations 3.4.0.GA DB:Informix Used reverse engineering to create my persistence entities from db schema [NB:This is a schema in work i cannot change] Getting exception when selecting list ...

4. Mapping entities with composite keys    stackoverflow.com

I am working on converting a legacy system to use hibernate (version 3.3.x) instead of using hand crafted SQL. I have run in to some problems mapping my datamodel that pertians ...

5. How do you tell Hibernate that your entity class mappings are in JPA 1.0 syntax?    stackoverflow.com

This is a follow-up to http://stackoverflow.com/questions/4058592/limitation-of-jpa-1-0-using-idclass-with-nested-composite-primary-keys/ EclipseLink comes with a javax.persistence_1.0.0.jar which I also put onto the classpath, so it can know about the version of my entity classes. But how does ...

6. Entity bean 3.0 composite key issue    stackoverflow.com

1: I have a table as shown below : Name ...

7. Join entity with composite key    stackoverflow.com

I have 2 entities for legacy db with composite keys, one of them has a composite key with @EmbeddedId annotation.

// first entity
public class Product {

 private Integer productId;

 // lookup ...

8. error refreshing JPA Entity    stackoverflow.com

I have the following domain model

Currency ----< Price >---- Product
Or in English
A Product has one or more Prices. Each Price is denominated in a particular Currency.
Price has a composite ...

9. Extend entity classes with composite keys in hibernate    stackoverflow.com

In our company we have a strange database model which can't be modified because to many systems works with them. Up to know we have a straight java application which connects ...

10. One to many problem mapping when target entity has composite primary key but source not    stackoverflow.com

I have a use case where a user got some profiles: So a one-to-many association. This is mapped through these legacy tables in pseudo sql.


11. Hibernate: Using entity with composite key    stackoverflow.com

I have a table with composite primary key: Taking example from tables from other question in SO the composite primary key class:

public class TimePK implements Serializable {     
protected ...

12. Mapping a composite-element in an entity returns wrong class    forum.hibernate.org

Hi there, I have a problem mapping a composite-element inside a map correctly in Java. I have defined an entity using entity-name and inside that, I have a userAccess property that maps a User ID to a composite-element. The composite-element requires a special class, which is fine, just that a query does not return the class (in this case AccessRightEntry), but ...

13. problem persisting entities with composite keys    forum.hibernate.org

Newbie Joined: Thu May 06, 2010 7:02 am Posts: 1 The problem is when we have the next case: we have a many to many relation between identificacion and entidad. The relation table between both have attributes, then is mapped like this: Code: @Entity @Table(name = "identificacion", schema = "etr") public class Identificacion implements java.io.Serializable { private int ...

14. Composite Id Entity with a One-To-Many Mapping    forum.hibernate.org

Hi, i need an help to solve this kind of Entity Mapping. First Entity: CityProvider Composite Id: idProvider; idCity column: idCountry Second Entity: Country Composity Id: idCountry, language I need a one-to-many mapping between CityProvider and Country. I tried this hbm file for CityProvider: ... ...

15. Mapping multiple tables with composite key to single entity    forum.hibernate.org

Hi I am new to the Hibernate and JPA. I have done some basic tutorials but I am stuck with this problem where I need to create an entity which can take data from multiple tables and each table uses composite primary key. In this example, companies can have multiple departments, each departments have multiple employees. Based on the department employees ...

16. joining entity with composite key: Path expected for join!    forum.hibernate.org

I am trying to perform the following query, to find all positions with employee surname of Smith. Code: session.createQuery("from Position as pos " + " inner join employeePositions as empPos " + ...

17. Composite Primary Keys using other entities    forum.hibernate.org

Newbie Joined: Wed Jul 27, 2011 7:13 am Posts: 1 Hi, I am having problems creating a composite primary key that uses 2 other entities. I get an exception every time I run JBoss. Any help greatly appreciated. Thanks Andrew My sample code and the exception I get are below: import javax.persistence.AttributeOverride; import javax.persistence.AttributeOverrides; import javax.persistence.Column; import javax.persistence.EmbeddedId; import javax.persistence.Entity; import ...

18. composite-id for new entities    forum.hibernate.org

..... ..... public class EmployeeDepartment { private EmployeeDepartmentID id; private Employee employee; private ...

19. Join between entities with composite-id using criteria    forum.hibernate.org

Hi everybody, I'm having trouble creating a query using criteria, when there is an entity which connects two other entities in two ManyToOne relantionships, just like shown on this image (I've changed tha name of the original tables and entities): My criteria looks like that: Code: DetachedCriteria criIndf = DetachedCriteria.forClass(ItemAItemB.class,"IAB"); ProjectionList p = Projections.projectionList(); p.add(Projections.property("IAB." + SceInrIdf.Fields.QUANTIDADE.toString())); criIndf.setProjection(p); ...

20. Composite Key Mapping Fails -- Entity Classes    forum.hibernate.org

Newbie Joined: Sat Dec 03, 2011 5:43 am Posts: 1 Hi, currently I try to get a many-to-many mapping to work. I don't understand how to use the entity classes generated by Hibernate in this particular case. A separate java class for the composite primary key of BondAtom is created, but I don't know how to associate the class with the ...

21. How to map entities with composite keys    forum.hibernate.org

... where part of the primary key is also a foreign key. Typical "hierarchical structure" from a legacy database. Take, for example, these two tables: Code: CREATE TABLE tb_domain ( cd_domain varchar(10), ds_domain varchar(255), constraint pk_domain primary key (cd_domain) ); CREATE TABLE tb_application ( cd_domain ...

22. Searching Entity with one of the composite id    forum.hibernate.org

Hi, Supposed I Have 3 table , CUSTOMER , EVENT , CUSTOMER_EVENT where CUSTOMER can participate in MANY EVENT and ONE EVENT can HOST MANY CUSTOMER My Hibernate Mapping for CUSTOMER_EVENT as below Code: ...

23. composite-id ... unknown entity error    forum.hibernate.org

Hi, I'm using a legacy database which dosen't have a primary key. So, I created a composite key in this manner.. This is a snippet of Person.hbm.xml Here's a snippet of hibernate.cfg.xml ...

24. Help with Join Table Entity using Composite Id    forum.hibernate.org

Author Message ajile81 Post subject: Help with Join Table Entity using Composite Id Posted: Wed Mar 05, 2008 1:18 pm Newbie Joined: Wed Mar 05, 2008 11:26 am Posts: 8 Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: Mapping documents: Code between sessionFactory.openSession() and session.close(): Full stack trace of any exception that occurs: Name and ...

25. Mapping problem for composite key with entities    forum.hibernate.org

27. Composite Key Using an Entity    forum.hibernate.org

I have a table with a composite key made up of a foreign key (bar_id) and a value (value). I'll call this table 'Foo'. The foreign key (bar_id) serves as the @Id on its own entity, which I will call 'Bar'. I have created an @Embeddable class (FooPk) to serve as the primary key for the Foo class. In that class ...