javax.persistence.criteria

Interface CriteriaDelete<T>

Type Parameters:

T - the entity type that is the target of the delete

All Superinterfaces:

CommonAbstractCriteria

All Known Implementing Classes:

CriteriaDeleteImpl

public interface CriteriaDelete<T>
extends CommonAbstractCriteria

The CriteriaDelete interface defines functionality for performing bulk delete operations using the Criteria API

Criteria API bulk delete operations map directly to database delete operations. The persistence context is not synchronized with the result of the bulk delete.

A CriteriaDelete object must have a single root.

Since:

Java Persistence 2.1

Method Summary

Modifier and Type	Method and Description
Root<T>	from(Class<T> entityClass) Create and add a query root corresponding to the entity that is the target of the delete.
Root<T>	from(EntityType<T> entity) Create and add a query root corresponding to the entity that is the target of the delete.
Root<T>	getRoot() Return the query root.
CriteriaDelete<T>	where(Expression<Boolean> restriction) Modify the delete query to restrict the target of the deletion according to the specified boolean expression.
CriteriaDelete<T>	where(Predicate... restrictions) Modify the delete query to restrict the target of the deletion according to the conjunction of the specified restriction predicates.

Methods inherited from interface javax.persistence.criteria.CommonAbstractCriteria

getRestriction, subquery

Method Detail

from

Root<T> from(Class<T> entityClass)

Create and add a query root corresponding to the entity that is the target of the delete. A CriteriaDelete object has a single root, the entity that is being deleted.

Parameters:

entityClass - the entity class

Returns:

query root corresponding to the given entity

from

Root<T> from(EntityType<T> entity)

Create and add a query root corresponding to the entity that is the target of the delete. A CriteriaDelete object has a single root, the entity that is being deleted.

Parameters:

entity - metamodel entity representing the entity of type X

Returns:

query root corresponding to the given entity

getRoot

Root<T> getRoot()

Return the query root.

Returns:

the query root

where

CriteriaDelete<T> where(Expression<Boolean> restriction)

Modify the delete query to restrict the target of the deletion according to the specified boolean expression. Replaces the previously added restriction(s), if any.

Parameters:

restriction - a simple or compound boolean expression

Returns:

the modified delete query

where

CriteriaDelete<T> where(Predicate... restrictions)

Modify the delete query to restrict the target of the deletion according to the conjunction of the specified restriction predicates. Replaces the previously added restriction(s), if any. If no restrictions are specified, any previously added restrictions are simply removed.

Parameters:

restrictions - zero or more restriction predicates

Returns:

the modified delete query