1. Hibernate mapping a composite key with null values stackoverflow.comWith Hibernate, can you create a composite ID where one of the columns you are mapping to the ID can have null values? This is to deal with a legacy table that ... |
2. JPA composite key issue: Column 'Person_ID' cannot be null stackoverflow.comthis is hurdle number 43 tonight in trying to get JPA/Hibernate working in a new project.
When trying to create and then persist my |
3. HibernateTemplate Composite Key fetching value null forum.hibernate.orgI have one table that has composite key 'rid' and 'sid'. For that i have made following beans to map with hibernate annotations : Code: WBList.java ============ @Entity @IdClass(WBListPK.class) public class WBList { private int rid; private int sid; private String wb; @Id ... |
4. Composite-element value in map returned as null forum.hibernate.orgPage 1 of 1 [ 3 posts ] Previous topic | Next topic Author Message rudyjahchan Post subject: Composite-element value in map returned as null Posted: Tue Feb 17, 2004 6:57 pm Newbie Joined: Tue Feb 17, 2004 3:43 pm Posts: 2 Hi there, For some reason, when I store an ... |
5. composite-id with one key-property null forum.hibernate.orgI am having a problem when I try to delete one persistent object that has one of the key-properties null. But when I run with the full key (no null properties in the key), I don't have the error. I would like to know if there is any problem using composite-id with one of the key properties NULL |
6. Composite id with null key-properties forum.hibernate.orgHi all; l have a problem with the query cache on a table wich has no pk. I know it's bad, but i have no other choice. Th problem is that i defined in the mapping file some properties as part of the composite key. However, these properties may be null. The problem comes when i want to use the query ... |
7. many-to-one composite mapping failing with null values forum.hibernate.orgNewbie Joined: Wed Feb 16, 2005 12:44 am Posts: 5 I am accessing a legacy schema (ie. The schema design isn't my fault ;-) ) which has some wierd many-to-one relationships. I am only accessing this database readonly at the moment, as writing to it could get nasty. I have a number of lookup tables of the form: Code: ( ... |
8. Null value semantics of composite elements forum.hibernate.orgHi, I'm using Hibernate version 2.1.6. The documentation specifies that a composite element is set to null if all its properties are null. Is it possible to change the null value semantics so that a composite element with all null properties is initialised with a default constructed object with all its fields uninitialised/set to null instead? If I've missed documentation relating ... |
9. Null elements in composite key forum.hibernate.orgHi, I have a composite key (Yes, I know, they're bad. But it's a legacy data model that I can't do anything about). Some of the key properties are null. Whenever Hibernate encounters this null key, it returns a null element. Is there any way to return the actual element, with a null property? Thanks in advance, Lee Hibernate version: 3.0.3 ... |
10. null key-property in a composite-map-key problem forum.hibernate.orgwe are attempting to fit hibernate to an existing database schema, so we are using composite-map-keys. however, we have a table where one or more of the key-property's in the composite-map-key may be null. however (i can't find any documentation to support this), it seems that hibernate cannot handle null values since the sql it generates is just wrong (not-null="false" doesn't ... |
11. Autogenerated Composite Keys and Null issues forum.hibernate.orgI can see this issue being opened many times in the forum but with no definite resolution. Is it true that unique identifer generator cannot be used to automatically save child relationship when I save parent? If No, Here is my scenario. I have a class called Partner ( PK partnerID) and Content( PK ContentID). Also a linking table called Partner_Content ... |
12. Composite key with null value for one column forum.hibernate.orgHi, I have table with composite primary key and I created following mapping for the table.As it is possible to insert a null value for any column in composite key as long as the combination of all columns is Unique, I have record in teh table which has null value for V_CHAR2 column ( which is part of composite key ) ... |
13. Question about composite primary key with null values forum.hibernate.orgDear All, I have a question about using compositie primary key in Hibernate or Hibernate EntityManager . CAN the composite primary key CONTAINS NULL values? e.g. sample table -- create table sample (key1 int not null, key2 char(10) null, data1 char(10) null, primary key (key1, key2)) the composite primary key = key1 + key2 where key2 maybe null but key1 + ... |
14. Composite Keys where one element of the key may be null forum.hibernate.orgI'm in a situation where I'm reverse engineering a legacy system to use Hibernate. That said, I'm open to possible solutions, but obviously the less modification I have to make to the current schema and views the better. I have a situation where a view has been created. I'm trying to map this view into Hibernate. The view is a left-join ... |
15. Composite Key Updated with NULL after insert forum.hibernate.orgNewbie Joined: Wed Jan 31, 2007 7:27 pm Posts: 3 I'm having a problem mapping a legacy database which has a composite key, that contains a foreign key to it's parent. There are two objects, Project (parent) and FinancialCost (child). Project contains a collection (bag mapped to a list) of FinancialCosts. FinancialCost has a composite key of the proejctId (the parent) ... |
16. composite id null property forum.hibernate.orgHibernate version:3 Mapping documents: |
17. composite-element creation with all properties null forum.hibernate.org |