/******************************************************************************* | |
* Copyright (c) 2006, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation | |
* | |
******************************************************************************/ | |
package org.eclipse.persistence.jpa.jpql.parser; | |
/** | |
* The <b>HAVING</b> construct enables conditions to be specified that further restrict the query | |
* result as restrictions upon the groups. | |
* <p> | |
* <div nowrap><b>BNF:</b> <code>having_clause ::= HAVING conditional_expression</code><p> | |
* | |
* @version 2.5 | |
* @since 2.3 | |
* @author Pascal Filion | |
*/ | |
public final class HavingClause extends AbstractConditionalClause { | |
/** | |
* Creates a new <code>HavingClause</code>. | |
* | |
* @param parent The parent of this expression | |
*/ | |
public HavingClause(AbstractExpression parent) { | |
super(parent, HAVING); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public void accept(ExpressionVisitor visitor) { | |
visitor.visit(this); | |
} | |
/** | |
* {@inheritDoc} | |
*/ | |
public JPQLQueryBNF getQueryBNF() { | |
return getQueryBNF(HavingClauseBNF.ID); | |
} | |
} |