javax.persistence.criteria
Interface CriteriaDelete<T>

Type Parameters:

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

public interface CriteriaDelete<T>

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

Root<T>	from(java.lang.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.
Predicate	getRestriction() Return the predicate that corresponds to the where clause restriction(s), or null if no restrictions have been specified.
Root<T>	getRoot() Return the query root.
<U> Subquery<U>	subquery(java.lang.Class<U> type) Create a subquery of the query.
CriteriaDelete<T>	where(Expression<java.lang.Boolean> restriction) Modify the query to restrict the target of the deletion according to the specified boolean expression.
CriteriaDelete<T>	where(Predicate... restrictions) Modify the query to restrict the target of the deletion according to the conjunction of the specified restriction predicates.

Method Detail

from

Root<T> from(java.lang.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 object 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 object 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<java.lang.Boolean> restriction)

Modify the 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 query

where

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

Modify the 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 query

subquery

<U> Subquery<U> subquery(java.lang.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