| /* |
| * Copyright (c) 1998, 2020 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 from Oracle TopLink |
| package org.eclipse.persistence.internal.jpa.parsing; |
| |
| import org.eclipse.persistence.expressions.*; |
| |
| /** |
| * INTERNAL |
| * <p><b>Purpose</b>: Represent a NOT |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Generate the correct expression for a NOT |
| * </ul> |
| * @author Jon Driscoll and Joel Lucuik |
| * @since TopLink 4.0 |
| */ |
| public class NotNode extends LogicalOperatorNode { |
| |
| /** |
| * Return a new NotNode. |
| */ |
| public NotNode() { |
| super(); |
| } |
| |
| /** |
| * INTERNAL |
| * Validate node and calculate its type. |
| */ |
| @Override |
| public void validate(ParseTreeContext context) { |
| TypeHelper typeHelper = context.getTypeHelper(); |
| if (left != null) { |
| left.validate(context); |
| left.validateParameter(context, typeHelper.getBooleanType()); |
| } |
| setType(typeHelper.getBooleanType()); |
| } |
| |
| /** |
| * INTERNAL |
| * Return a EclipseLink expression by calling generateExpression on the right node and adding .not() |
| * to the returned expression |
| */ |
| @Override |
| public Expression generateExpression(GenerationContext context) { |
| return getLeft().generateExpression(context).not(); |
| } |
| |
| /** |
| * INTERNAL |
| * Is this node a Not node |
| */ |
| @Override |
| public boolean isNotNode() { |
| return true; |
| } |
| } |