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Manual
17

JPA Query API

should be used mainly when the query result type is unknown or when a query returns polymorphic results and the lowest known common denominator of all the result objects is Object. When a more specific result type is expected queries should usually use the TypedQuery interface. It is easier to run
Manual
17

Logical Operators in JPQL and Criteria API

the result is FALSE, because one FALSE operand is sufficient for a FALSE result. If one operand is NULL and the other operand is either TRUE or NULL, the result is NULL (unknown). ObjectDB supports ... NULL represents unknown. Therefore, if one operand is NULL and the other operand is TRUE the result
Forum
17

Criteria Query results in a NoResultException instead of returning object

._NoResultException: No matching results for a unique query at org.jboss.seam.security.IdentityImpl ... ) Caused by: com.objectdb.o._NoResultException: No matching results for a unique query at com.objectdb.o
Forum
17

Multiple joins did not return expected result

? There is no error at all, just an empty result. Thats why I thought this must be working ... the results (e.g. into a Java set, maybe LinkedHashSet, if order is important) may be the right way. Ok. Thank you doppelrittberger
Issue
17

NoResultException: No matching results for a unique query

I am very often getting a "com.objectdb.o._NoResultException: No matching results for a unique query" when modifying my already persisted entities within a transaction. I cannot replicate ... a normal situation of executing a query that has no results, so more details are needed to understand
Forum
17

Wrong select results

Hello, I got a realy strange SELECT problem. In explorer query "select p  from Player p where p.confirmed==false", given me some results with p.confirmed==TRUE. And when I try to do (see image ... " />   results="1024mb" programs="500" />  
Forum
17

An InternalException occurs when gets an result list

query: select distinct m from ArchitectureImpl m with query option: query.setHint("objectdb.result
Forum
17

Bug with unique constraint exception not resulting in transaction roll back

(TransactionAttributeType.REQUIRES_NEW) on my method does result in a transaction rollback as expected
Forum
17

Cache configuration of database file pages, query programs, query results

Are there some possibilities to configure following caches in order to keep cache data for only some important entity types and for the entire life cycle of the EntityManagerFactory. Cache of database file pages. Cache of query programs. Cache of query execution results. These caches are fully
Forum
17

CriteriaQuery using isNotNull with other conditions results in InternalException

.where(predicates.toArray(new Predicate[predicates.size()])); List results = em.createQuery