Home » Search

About step by step

141-150 of 200Refresh
Forum
3

Null returned by Persistence.createEntityManagerFactory

get an exception. The exception is ultimately caused by a null pointer on the line "em = emf.createEntityManager ... where you think it is, because stack traces are occasionally inaccurate. Try to change your code by moving suspected lines to separate methods, etc. elks
Forum
3

A lot of ENT and SIV instances which are not cleared by GC

through mapped by to-many relationships. Please check the new build. If you still get the exception
Forum
3

find out if an entity is refered by other entities

Hello, it is possible to find out if a child entity is just referenced by other parent entity types. But the types of the parent entities are unknown. Is there a possibility to find out if an entity is referenced? best regards You can only find it (using a query) for a specific relationship
Forum
3

Finding an object by its datetime

of course). My resultlist from my query gets zero results. I want to search for objects by exact
Forum
3

Get multiple entities by Id

I'm trying to fetch a list of entities, by their Id. I Use this query: SELECT c FROM User c WHERE c.id IN :ids This querey works as long as I don't set the property "id" as @Id. If i set @Id to any other member, this query works, if I set id as @Id, it stops working and gives zero results
Forum
3

Group by: list if no aggregate function is specified

Hello! In a query like SELECT parent, children FROM Parent parent LEFT JOIN p.children children GROUP BY parent maybe it would be good if it will return a list of Object[2], where the second object is a list of children of a parent. Because creating a query to get a list of parents, then fetching
Forum
3

Internal ObjectDB error by read the primary key

.6_05. This is a similar issue that was not covered by the fix of 2.6.6_05. Build 2.6.6_06
Forum
3

java.sql.Time field off by 30 minutes

home premium and jdk6. I see the problem on my machine now by running #6 with -Duser.timezone=Asia
Forum
3

Query by array element

operation and then use that method in the query. It is supported by ObjectDB but not JPA portable: import
Forum
3

Retrieval by Access bug?

any reason for that. Could be any bug in ObjectDB when I retrieve by navigation a field from