/*******************************************************************************
* Copyright (c) 2006, 2015 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>SELECT</b> clause queries data from entities.
*
* <div><b>BNF:</b> <code>select_clause ::= SELECT [DISTINCT] select_expression {, select_expression}*</code><p></div>
*
* @see AbstractSelectClause
*
* @version 2.5
* @since 2.3
* @author Pascal Filion
*/
public final class SelectClause extends AbstractSelectClause {
/**
* Creates a new <code>SelectClause</code>.
*
* @param parent The parent of this expression
*/
public SelectClause(AbstractExpression parent) {
super(parent);
}
/**
* {@inheritDoc}
*/
public void accept(ExpressionVisitor visitor) {
visitor.visit(this);
}
/**
* {@inheritDoc}
*/
public JPQLQueryBNF getQueryBNF() {
return getQueryBNF(SelectClauseBNF.ID);
}
/**
* {@inheritDoc}
*/
@Override
public String getSelectItemQueryBNFId() {
return InternalSelectExpressionBNF.ID;
}
}