equal « Map « JPA Q&A

1. Constrained equivalent annotation in hibernate?    stackoverflow.com

How can I use constrained attribute in hibernate annotation onetoone mapping. I mean what is the equivalent attribute of constrained to use in annotations?

2. Criteria api equivalent for joining child with parent    stackoverflow.com

Version: Hibernate 3.3 Hi, I have 2 simple models:

class Parent {
  Long id; //auto generated sequence and primary key
  String name;
  Set<Child> children;

class Child {
  Long id;

3. Hibernate, proxies, equals() and maps - two proxies passed to equals()    stackoverflow.com

I have run into a problem with implementing the equals() method in Hibernate. I have a table SHORTCODES_ASSIGNMENTS_TO_HOTELS that has 3 columns: COUNTRY_ID SHORT_CODE HOTEL_ID and means that for such and such country and such and ...

4. How can i use @DiscriminatorColumn in the equals method of the entity?    stackoverflow.com

Actually the Question is in the title. The entities will be map Comments for different objects in system(Blog nodes, comments, etc.) so I want to be able work with this column(read it's ...

6. Criteria equivalent for HQL ManyToMany join    forum.hibernate.org

7. overriding equals in persistant objects    forum.hibernate.org

Hmm... I don't think sentence "Hibernate uses the id attribute to check equality" is correct at all. for example, if Hibernate uses object id to lookup it in the cache could you say it was "an equality check"? I doubt. When you put an object in Set for example, object's equals() method is used to check for equality. And Hibernate's Set ...

8. 1 mapping, 1 class , multiple equal tables - Is it possible?    forum.hibernate.org

Hi, im using Hibernate version: 3 I have a question regarding mapping. For example say that i have 4 tables called A,B,C,D All theese tables are exactly the same except for the PK name wich is A_id, B_id etc. This setup is needed cause the tables get so big that i get performance problems. What i want to do is to ...

9. These mappings are equivalent ?    forum.hibernate.org

These mappings are equivalent ? Code:

10. Criteria equivalent for collection (Map) query?    forum.hibernate.org

12. why override equals()??    forum.hibernate.org