javax.persistence.criteria

Interface CommonAbstractCriteria

All Known Subinterfaces:

AbstractQuery<T>, CriteriaDelete<T>, CriteriaQuery<T>, CriteriaUpdate<T>, Subquery<T>

All Known Implementing Classes:

AbstractManipulationCriteriaQuery, CriteriaDeleteImpl, CriteriaQueryImpl, CriteriaSubqueryImpl, CriteriaUpdateImpl

public interface CommonAbstractCriteria

The CommonAbstractCriteria interface defines functionality that is common to both top-level criteria queries and subqueries as well as to update and delete criteria operations. It is not intended to be used directly in query construction.

Note that criteria queries and criteria update and delete operations are typed differently. Criteria queries are typed according to the query result type. Update and delete operations are typed according to the target of the update or delete.

Since:

Java Persistence 2.1

Method Summary

Modifier and Type	Method and Description
Predicate	getRestriction() Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified.
<U> Subquery<U>	subquery(Class<U> type) Create a subquery of the query.

Method Detail

subquery

<U> Subquery<U> subquery(Class<U> type)

Create a subquery of the query.

Parameters:

type - the subquery result type

Returns:

subquery

getRestriction

Predicate getRestriction()

Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified.

Returns:

where clause predicate