| /* |
| * Copyright (c) 2011, 2021 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: |
| // 10/26/2012-2.5 Chris Delahunt |
| // - 350469: JPA 2.1 Criteria Query framework Bulk Update/Delete support |
| package org.eclipse.persistence.internal.jpa.querydef; |
| |
| import jakarta.persistence.criteria.CriteriaDelete; |
| import jakarta.persistence.criteria.Expression; |
| import jakarta.persistence.criteria.Predicate; |
| import jakarta.persistence.criteria.Root; |
| import jakarta.persistence.metamodel.EntityType; |
| import jakarta.persistence.metamodel.Metamodel; |
| |
| import org.eclipse.persistence.expressions.ExpressionBuilder; |
| import org.eclipse.persistence.queries.DatabaseQuery; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: Contains the implementation of the CriteriaDelete interface of |
| * the JPA criteria API. |
| * <p> |
| * <b>Description</b>: This is the container class for the components that |
| * define a Delete Query. |
| * |
| * @see jakarta.persistence.criteria CriteriaDelete |
| * |
| * @author Chris Delahunt |
| * @since EclipseLink 2.5 |
| */ |
| public class CriteriaDeleteImpl<T> extends CommonAbstractCriteriaImpl<T> implements CriteriaDelete<T> { |
| |
| private static final long serialVersionUID = -3858349449764066901L; |
| |
| protected Root<T> root; |
| |
| public CriteriaDeleteImpl(Metamodel metamodel, CriteriaBuilderImpl queryBuilder, Class<T> resultType){ |
| super(metamodel, queryBuilder, resultType); |
| } |
| |
| @Override |
| public Root<T> from(Class<T> entityClass) { |
| return this.internalFrom(entityClass); |
| } |
| |
| @Override |
| public Root<T> from(EntityType<T> entity) { |
| return this.internalFrom(entity); |
| } |
| |
| @Override |
| public Root<T> getRoot() { |
| if (this.root == null) { |
| if (getResultType() !=null) { |
| return this.from(getResultType()); |
| } |
| } |
| return this.root; |
| } |
| |
| @Override |
| public CriteriaDelete<T> where(Expression<Boolean> restriction) { |
| return (CriteriaDelete<T>)super.where(restriction); |
| } |
| |
| @Override |
| public CriteriaDelete<T> where(Predicate... restrictions) { |
| return (CriteriaDelete<T>)super.where(restrictions); |
| } |
| |
| @Override |
| protected void integrateRoot(RootImpl root) { |
| if (this.root !=root) { |
| this.root =root; |
| } |
| } |
| |
| @Override |
| protected org.eclipse.persistence.expressions.Expression getBaseExpression() { |
| if (this.root == null) { |
| return new ExpressionBuilder(); |
| } else { |
| return ((RootImpl)this.root).getCurrentNode(); |
| } |
| } |
| |
| @Override |
| protected DatabaseQuery getDatabaseQuery() { |
| org.eclipse.persistence.queries.DeleteAllQuery query = new org.eclipse.persistence.queries.DeleteAllQuery(this.queryType, getBaseExpression()); |
| query.setShouldDeferExecutionInUOW(false); |
| return query; |
| } |
| } |