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EclipseLink build based upon Git transaction ecdf3c32c4
/*
* Copyright (c) 1998, 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:
// Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.internal.jpa.parsing;
/**
* INTERNAL
* Purpose: Represent a Sort Direction for an
* Order By Item
*
Responsibilities:
* - Apply itself to a query correctly
*
* This node represents either an ASC or DESC encountered on the input stream
* e.g SELECT ... FROM ... WHERE ... ORDER BY emp.salary ASC
*
* @author Jon Driscoll
* @since TopLink 5.0
*/
import org.eclipse.persistence.expressions.Expression;
import org.eclipse.persistence.expressions.ExpressionOperator;
public class SortDirectionNode extends Node {
private int sortDirection = ExpressionOperator.Ascending;
/**
* INTERNAL
* Return the parent expression unmodified
*/
public Expression addToExpression(Expression parentExpression, GenerationContext context) {
return parentExpression.getFunction(getSortDirection());
}
public void useAscending() {
setSortDirection(ExpressionOperator.Ascending);
}
public void useDescending() {
setSortDirection(ExpressionOperator.Descending);
}
// Accessors
public int getSortDirection() {
return sortDirection;
}
public void setSortDirection(int sortDirection) {
this.sortDirection = sortDirection;
}
}