1. When to use, not to use, OneToOne and ManyToOne stackoverflow.comI just started reading of JPA, and the implementation in hibernate to understand the details. but, to continue with development till then, can you help to clarify a basic qn.
|
2. Hibernate OnetoOne mapping with two lookup values stackoverflow.comI have a class which has two lookup values (one for name and one for type) |
3. How to map this OnetoOne in hibernate using JPA stackoverflow.comI have following Entity - |
4. Does a OneToOne entity need to have a ManyToOne relationship to the parent entity stackoverflow.comDoes a OneToOne entity need to have a ManyToOne relationship to the parent entity or is it not needed? |
5. Hibernate code...exception in onetoone mapping stackoverflow.comI am getting weired exception and not able to trace why it so. Please help me here. I am just using OneToOne mapping with PrimarykeyJoinColumn property. |
6. [hibernate] OneToOne add a new child :o( coderanch.comHi there, I'm new with persistence, and I'm having a problem updating an object which has a chlid object referenced by a OneToOne relation. When I update the child properties a new row is added into the table, while I'd like just udpate the existing one. The father @Entity @Inheritance(strategy =InheritanceType.SINGLE_TABLE) @DiscriminatorColumn(name="type",discriminatorType=DiscriminatorType.STRING) @DiscriminatorValue("simple") @Table(name="USER") public class User implements java.io.Serializable { private ... |
7. Hibernate exception in OneToOne mapping coderanch.comI am getting weired exception and not able to trace why it so. Please help me here. I am just using OneToOne mapping with PrimarykeyJoinColumn property. @Entity @Table(name="mediashow_user1") public class UserVO implements Serializable{ private static final long serialVersionUID = 6066636545309839156L; @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long empid ; private String email = null; private String fname = null ; private String ... |
8. Compound primary keys and OneToOne mapping - need advice forum.hibernate.orgHi, I have three entities A, B, and C. Code: @Entity public class A implements java.io.Serializable { @Id private String s; ... } @IdClass(BKey.class) @Entity public class B implements java.io.Serializable { @Id @Temporal(javax.persistence.TemporalType.DATE) private ... |
9. OneToOne and ManyToOne associations on same column forum.hibernate.orgNewbie Joined: Mon Mar 27, 2006 8:21 pm Posts: 4 This problem sounds similiar to http://forum.hibernate.org/viewtopic.php?t=983185 but I'm creating a separate post in case its not. I have a legacy database with the a parent/child relationship where one of the children is the "default" child. Code: +--------+ 1..n +-------+ | Parent |/\____________| Child ... |
10. onetoone mapping problem forum.hibernate.orgHi I have a onetoone mapping problem. What I would like to a achieve is a kind a type 2 mapping. So the key should compose of startdate, enddate and id. this is also the key of the associated object. A object should be updated when startdate is never than startdate or older than enddate and id is the same. In ... |
11. OneToOne with Inheritance forum.hibernate.org@OneToOne @JoinColumn(name = "ORDER_ID", nullable = false) public Payment getPayment() { return payment; } public void setPayment(Payment payment) { this.payment = payment; } |
12. Filtered OneToOne mappings forum.hibernate.orgSo assume you have two entities, School and Student and obviously there is a one to many relationship. But the student entity has a column called valedictorian, and one of these students has the value 'Y', whereas all the rest have 'N'. (or you can come up with some more complex way of determining that from the student entity, if that ... |
13. OneToOne mapping with foreign keys, How to? forum.hibernate.orgHello, hopefully someone can help me with this sligtly exotic setup. I have two tables here which are associated OneToOne and I want them to be mapped onto a unidirectional association. When using the hibernate schema export it forces me to have the foreign key in the table which belongs to the java Object which holds the association. Is there any ... |
14. Question about mapping what seems like a simple OneToOne forum.hibernate.orgAs an example, I have something like the following structure: create table foo ( foo_id int, data text primary key (foo_id) ); create table bar ( foo_id int, data text, constraint bar_foo_fk foreign key (foo_id) references foo on delete no action primary key (foo_id) ); I can't get this to work. One doesn't inherit from the other, it's just related data ... |
15. OneToOne mapping to JBPM entity forum.hibernate.orgAuthor Message wurzelbutz Post subject: OneToOne mapping to JBPM entity Posted: Tue Feb 17, 2009 5:02 am Newbie Joined: Tue Feb 03, 2009 10:49 am Posts: 10 Hibernate version: 3.2.4.sp1 Hibernate Annotations: 3.2.1.GA Name and version of the database you are using: MYSQL 5 Hi i'm using JBPM + SEAM + Hibernate in my web application. I created an ... |
16. OneToOne Mapping using a common column -Book,ISBN,Inventory forum.hibernate.orgI have a Book model and Inventory model mapped by ISBN number, but ISBN is not the primary key in either. Each table has its own surrogate primary key - the id column. Books belong to Bookstores and Inventory is for a group of Bookstores(BookstoreChain). Inventory is shared by all Bookstores belonging to a BookstoreChain. I'm using Hibernate @OneToOne mapping on ... |