javax.persistence.criteria.CriteriaUpdate Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Linda DeMichiel - Java Persistence 2.1
package javax.persistence.criteria;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.EntityType;
/**
* The CriteriaUpdate interface defines functionality for performing
* bulk update operations using the Criteria API.
*
* Criteria API bulk update operations map directly to database update
* operations, bypassing any optimistic locking checks. Portable
* applications using bulk update operations must manually update the
* value of the version column, if desired, and/or manually validate
* the value of the version column.
* The persistence context is not synchronized with the result of the
* bulk update.
*
*
A CriteriaUpdate object must have a single root.
*
* @param the entity type that is the target of the update
*
* @since Java Persistence 2.1
*/
public interface CriteriaUpdate extends CommonAbstractCriteria {
/**
* Create and add a query root corresponding to the entity
* that is the target of the update.
* A CriteriaUpdate object has a single root, the entity that
* is being updated.
* @param entityClass the entity class
* @return query root corresponding to the given entity
*/
Root from(Class entityClass);
/**
* Create and add a query root corresponding to the entity
* that is the target of the update.
* A CriteriaUpdate object has a single root, the entity that
* is being updated.
* @param entity metamodel entity representing the entity
* of type X
* @return query root corresponding to the given entity
*/
Root from(EntityType entity);
/**
* Return the query root.
* @return the query root
*/
Root getRoot();
/**
* Update the value of the specified attribute.
* @param attribute attribute to be updated
* @param value new value
* @return the modified update query
*/
CriteriaUpdate set( SingularAttribute attribute, X value);
/**
* Update the value of the specified attribute.
* @param attribute attribute to be updated
* @param value new value
* @return the modified update query
*/
CriteriaUpdate set( SingularAttribute attribute, Expression value);
/**
* Update the value of the specified attribute.
* @param attribute attribute to be updated
* @param value new value
* @return the modified update query
*/
CriteriaUpdate set(Path attribute, X value);
/**
* Update the value of the specified attribute.
* @param attribute attribute to be updated
* @param value new value
* @return the modified update query
*/
CriteriaUpdate set(Path attribute, Expression value);
/**
* Update the value of the specified attribute.
* @param attributeName name of the attribute to be updated
* @param value new value
* @return the modified update query
*/
CriteriaUpdate set(String attributeName, Object value);
/**
* Modify the update query to restrict the target of the update
* according to the specified boolean expression.
* Replaces the previously added restriction(s), if any.
* @param restriction a simple or compound boolean expression
* @return the modified update query
*/
CriteriaUpdate where(Expression restriction);
/**
* Modify the update query to restrict the target of the update
* 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.
* @param restrictions zero or more restriction predicates
* @return the modified update query
*/
CriteriaUpdate where(Predicate... restrictions);
}