| /* |
| * 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 an ABS in EJBQL |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Generate the correct expression for an ABS in EJBQL |
| * </ul> |
| * @author Jon Driscoll and Joel Lucuik |
| * @since TopLink 4.0 |
| */ |
| public class AbsNode extends ArithmeticFunctionNode { |
| public AbsNode() { |
| super(); |
| } |
| |
| /** |
| * INTERNAL |
| * Validate node and calculate its type. |
| */ |
| @Override |
| public void validate(ParseTreeContext context) { |
| if (left != null) { |
| left.validate(context); |
| setType(left.getType()); |
| } |
| } |
| |
| /** |
| * INTERNAL |
| */ |
| @Override |
| public void validateParameter(ParseTreeContext context, Object contextType) { |
| // delegate to the argument node |
| left.validateParameter(context, contextType); |
| } |
| |
| /** |
| * INTERNAL |
| * Generate the EclipseLink expression for this node |
| */ |
| @Override |
| public Expression generateExpression(GenerationContext context) { |
| Expression whereClause = getLeft().generateExpression(context); |
| whereClause = ExpressionMath.abs(whereClause); |
| return whereClause; |
| } |
| |
| } |