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Forum
5

A bidirectional OneToOne association with a shared primary key

@OneToOne association that has a shared primary key, example: http://fruzenshtein.com/bidirectional-one-to-one-primary-key-association/ Can ObjectDB support this same specific relationship ... one to one association, but it cannot be based on identical primary keys, i.e. the primary key
Forum
5

Getting Foreign Key

How to get Foreign key using  org.eclipse.persistence.queries.WriteObjectQuery class ... level primary key but i also nead to get foreign key which is belongs to header. WriteObjectQuery ... got pojo name query.getPrimaryKey() by using this i can get primary key now i nead to get foreighn
Manual
5

SSL Configuration

private key and its corresponding public key (the SSL protocol is based on the RSA algorithm ... . This file is generated from the Keystore file by omitting the private key (it still contains the general information and the public key). You can generate these files using the JDK keytool utility
Forum
5

Foreign key constraint issue

Hi, I'm trying to create two tables (Parent and Child) with a foreign key constraint from Child ... one specific case that foreign key constraint doesn't apply and I can't figure how to make it work ... get deleted, whereas I'd want to remove all orphaned child entities (as with a foreign key constraint
Forum
5

Can a Set<E> be a foreign key?

I have two classes, Cell and Character.  Basically, the cell is like a room, and contains a variable (private Set cellHeldCharacters;) which holds the IDs of the characters within the cell (The IDs are Primary Keys).  Can I use the Foreign Key annotation for the variable, or is it illegal
Forum
5

Intermittent: "Attempt to reuse an existing primary key value" when persisting a new instance

Hi,   I don't have a useful test case to expose this issue, but I am getting an intermittent "Attempt to reuse an existing primary key value". In this particular instance, the error is: Attempt to reuse an existing primary key value (com.x.y.z.UserPassword:1) (error 642) at com.objectdb.jpa
Issue
5

JPA Composite Key make Object Db throws "Unexpected exception (Error 990)"

Hello Object Db community :) I am using this wonderful library and I caught a strange exception while testing the "composite key" feature in JPA. Let's see what I am doing : @Entity public class ... embedded Id ) key with an enum type. Here is the code : package test; import java.util.*; import
Forum
5

KEY() / VALUE() not recognized in JPQL??

Hi! Explorer says "unexpected token" on KEY(..: SELECT FROM individual.IndividualContact $1 LEFT OUTER JOIN $1.profile.title.name m WHERE (KEY(m) = 'deu' AND VALUE(m) LIKE '%Dr%') profile = embedded entity title = referenced entity name = Map   thanks, Alex Yes
Forum
5

Merge failure with composite primary key

it. The composite primary key issue is unclear, since switching to a single primary key field doesn't seem to make any difference. eurojet
Forum
5

Merge Issue: Attempt to reuse an existing primary key value

: Attempt to reuse an existing primary key value (MyTestCase$MyEntityChild:'child1') at com.objectdb.o ... that "Attempt to reuse an existing primary key value" on my merge operation is a total nonsense. If 2.5