1. How to config many-to-one if maybe no key in parent table? forum.hibernate.orgI have a parent table and a child table, but no foregin key exsit in database. So there are many records exist in child table but not in parent table. I config many-to-one in child table xml file. When I query data, hibernate2 throws Exception for reporting no key exist in parent table. What is the correct way to descible it ... |
2. Foreign key in one table has multiple parents forum.hibernate.orgI have a table called "TEST" which has column "Sample_ID" , and it can take values (ID's) from three tables "MATERIAL", "APPLIANCE", "PRODUCT", I have concrete class for all the tables, I used many to many relationship it didn't work. I know that a foreign key cannot have multiple parent key, is there any trick in hibernate where I can specify ... |
3. Parent Key Dropped forum.hibernate.org/** * @hibernate.bag table="account_detail" cascade="save-update" lazy="false" * @hibernate.key column="account_id" * @hibernate.one-to-many class="org.dlw.model.AccountDetail" */ public List getAccountDetails() { return accountDetails; } |