| /* |
| * 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: |
| // Oracle - initial API and implementation |
| // |
| package org.eclipse.persistence.jpa.jpql.tools.model; |
| |
| import org.eclipse.persistence.jpa.jpql.tools.model.query.KeywordExpressionStateObject; |
| import org.eclipse.persistence.jpa.jpql.tools.model.query.StateObject; |
| import org.eclipse.persistence.jpa.jpql.tools.model.query.UpdateItemStateObject; |
| import static org.eclipse.persistence.jpa.jpql.parser.Expression.*; |
| |
| /** |
| * @version 2.4 |
| * @since 2.4 |
| * @author Pascal Filion |
| */ |
| public abstract class AbstractNewValueStateObjectBuilder extends AbstractScalarExpressionStateObjectBuilder<INewValueStateObjectBuilder> |
| implements INewValueStateObjectBuilder { |
| |
| /** |
| * Creates a new <code>AbstractNewValueStateObjectBuilder</code>. |
| * |
| * @param parent The parent of the expression to build, which is only required when a JPQL |
| * fragment needs to be parsed |
| */ |
| protected AbstractNewValueStateObjectBuilder(UpdateItemStateObject parent) { |
| super(parent); |
| } |
| |
| @Override |
| public void commit() { |
| getParent().setNewValue(pop()); |
| } |
| |
| @Override |
| protected UpdateItemStateObject getParent() { |
| return (UpdateItemStateObject) super.getParent(); |
| } |
| |
| @Override |
| public INewValueStateObjectBuilder NULL() { |
| StateObject stateObject = new KeywordExpressionStateObject(getParent(), NULL); |
| add(stateObject); |
| return this; |
| } |
| |
| @Override |
| public INewValueStateObjectBuilder variable(String variable) { |
| StateObject stateObject = buildIdentificationVariable(variable); |
| add(stateObject); |
| return this; |
| } |
| } |