About string

forum_thread

Strange behaviour with ORDER BY and IN

Hi, after trying out objectdb for a while now and being quite impressed by its speed and overall performance I noticed a strange behaviour where an ORDER BY - directive isn't executed as it should be (and usually is, except in this special combination-case). ... seems to be ignored if we order by a simple member (e.g. a String) being the Entity-ID and, at the same time, filter on this member with a ... {   @ Id private String id ;   private String town ;   public ...

 
forum_thread

Unable to persist TreeMap

import java.util.SortedMap; import java.util.TreeMap; import javax.persistence.Entity; //---------------- @Entity class Person { public SortedMap<String, String> memberships = new TreeMap<String, String>(); } //Person   ... class Person { public SortedMap<String, String> memberships = new TreeMap<String, String> ( ...

 
doc

java.lang.RuntimeException

(Exception of java.langException RuntimeException)

 
api-jdo

javax.jdo.annotations.Join

Annotation for the join of a relation.(Annotation of JDO)

 
api-jpa

javax.persistence.OptimisticLockException

Thrown by the persistence provider when an optimistic locking conflict occurs.(Exception of JPA)

 
api-jpa

javax.persistence.PessimisticLockException

Thrown by the persistence provider when an pessimistic locking conflict occurs.(Exception of JPA)

 
api-jpa

javax.persistence.QueryTimeoutException

Thrown by the persistence provider when a query times out and only the statement is rolled back.(Exception of JPA)

 
api-jpa

javax.persistence.LockTimeoutException

Thrown by the persistence provider when an pessimistic locking conflict occurs that does not result in transaction rollback.(Exception of JPA)

 
api-jdo

javax.jdo.spi.JDOImplHelper

This class is a helper class for JDO implementations.(Class of JDO)

 
api-jpa

javax.persistence.RollbackException

Thrown by the persistence provider when EntityTransaction.commit() fails.(Exception of JPA)