1. component in composite key forum.hibernate.orgI have hard time to figure out how to use composite-id in the following scenarios. My table definition Inventory { storeNum PK chainCode PK productId PK productType PK .... } My java class is like class Inventory { Store store; Item item; } class Store { int storeNum; int chainCode; } class Item { String type; String id; } How would ... |
2. Problem when use Component as Composite key forum.hibernate.orgCould any one points out what I did wrong? Much appreciated. java test codes: Parent p = new Parent(); ParentId pidObj = new ParentId(); pidObj.setPid(3); pidObj.setVal("a value"); p.setId(pidObj); session.load(p, pidObj); Child c = new Child(); ChildId cidObj = New ChildId(); cidObj.setCid(10); cidObj.setVal("a value"); c.setId(cidObj); c.setParent(p); //p.getChildren().add(c); session.save(c); session.flush(); Exception thrown as following: Hibernate: insert into child (child_id, value, name) values (?, ... |
3. Mapping one to many component not using primary key forum.hibernate.orgI have a somewhat theoretical question. I have an abstract entity, Content, which has a large number of joined subtypes (Image, Story, Movie, etc). The primary key on the Content table appears in each sub types's table but each subtype has an additional synthetic key. As far as the database (oracle 8i) is concerned the synthetic key is the primary key ... |
4. 2 components in a composite key? forum.hibernate.orgI have an application where some of the tables have 5 element composit-ids, some have 3 element, and some have 2. Our DBAs mandate that a primary key may not be a surrogate and must describe the data (sequence numbers are not allowed, if it is at all possible). Hibernate is really easy with this. Instead of a long winded paragraph, ... |
5. Foreign key with dynamic-component? forum.hibernate.orgHi, how do i get access to a one-to-one association defined in a dynamic-component? I would reference to this object by the generator class "foreign". e.g. Code: |
6. some components not found when key is char(6) forum.hibernate.orgHi, I have a class with a collection of components. The primary key of the class is char(6) (legacy database) and the mapping looks like: |
7. Problem mapping component on composite key spanning 2 tables forum.hibernate.orgHi, I have the following scenario: Tables: trade(trade_id,trade_info_id,trade_version,valid_from_valid_to,....) trade_info(trade_info_id,trade_info_version,valid_from_valid_to,....) trade_sent_status(trade_info_id,trade_info_version,trade_version,status,system) The relationship is every trade has a trade_info Now we have the 3rd table trade_sent_status which contains information abt which version of trade and trade_info was sent to which downstream system. Now i want to ensure that the latest version of trade_sent_status is part of the trade object In the xml ... |
8. IllegalArgumentException with component natural key forum.hibernate.orgRegular Joined: Thu Jul 29, 2004 11:55 pm Posts: 75 We are using 3.2.3GA. This error is confounding us because the code works in our unit tests against HSQLDB, but gives an error under tomcat with oracle. I know there was a bug filed and it was rejected for similar symptoms. The error changes as we change the order of the ... |