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1. 'survey.hibernate_unique_key' doesn't exist"    coderanch.com

I am using mySQL and hibernate. I am using auto_imcrement on a column in mySQL (the column is the primary key) and I'm trying to tell hibernate to point the generator at column as the unique ID and I'm not sure how to write the generator. Should I use class = "native" or class = "sequence" or "identity" or "hilo" or ...

2. add an fk that with the referring value that does not exist    forum.hibernate.org

so basically i have this table that requires me to input the id of another table, wherein the values of for those id's does not exist yet. i'm not quite sure how to implement this with hibernate but i have a few thoughts on how it should work. the first is i forgo the fk and just force the application to ...

3. hibernate tries to recreate existing foreign keys    forum.hibernate.org

Hi, I generated annotated beans with hiberante-tools from an already existing model, with it's contraints etcetera the debug shows "org.hibernate.tool.hbm2ddl.TableMetadata - foreign keys: fk_foobar" wich means the metadata from the database are understood. However it doesn't prevent hibernate when it's un ddl=update mode to try to create the same constraint but with it's own name. putting @ForeignKey(name="fk_foobar") on the manyToOne getter ...

4. hibernate_unique_key' doesn't exist    forum.hibernate.org

@hibernate.class table="reservations" public class Reservation { /* * @hibernate.id * name="id" * type="long" ...

5. Hibernate and existing object does not store PK in object    forum.hibernate.org

Hibernate ver. 2.1.7 I have an object that is only read from the database. The object does not store the PK in the object because we never have to look up or modify anything once we retieve it. I can not modify the class to store the PK because of other systems' dependency on the class. My suspicion is that I ...

7. key parent not exist    forum.hibernate.org

Need help ! I have two table : B and A the B have a relation with A on COLUM ID_BL i save A and B object , i make a flush() on the session i make a commit() i have a violation of integrity due to the constraint : key parent A must exist. this is the Mapping B is ...

8. TableHiLoGenerator & existing pk values ok together?    forum.hibernate.org

I have some existing data that I would like to preserve in a Derby Database. Previously it used derby's identity column feature to generate primary key values. I want to migrate to Hibernate, so I will have to remove the auto generated key values from the columns, and let Hibernate's TableHiLoGenerator take over. Will this work w/o intervention? Or will the ...