/*******************************************************************************
* Copyright (c) 2011, 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.tools.model;
import org.eclipse.persistence.jpa.jpql.tools.model.query.AbstractSelectClauseStateObject;
import org.eclipse.persistence.jpa.jpql.tools.model.query.StateObject;
/**
* The abstract implementation of {@link ISimpleSelectExpressionStateObjectBuilder} that supports
* the creation of the select expression based on the JPQL grammar defined in JPA 2.0.
*
* @version 2.4
* @since 2.4
* @author Pascal Filion
*/
public abstract class AbstractSimpleSelectExpressionStateObjectBuilder extends AbstractScalarExpressionStateObjectBuilder<ISimpleSelectExpressionStateObjectBuilder>
implements ISimpleSelectExpressionStateObjectBuilder {
/**
* Creates a new <code>AbstractSimpleSelectExpressionStateObjectBuilder</code>.
*
* @param parent The select clause for which this builder can create a select expression
*/
protected AbstractSimpleSelectExpressionStateObjectBuilder(AbstractSelectClauseStateObject parent) {
super(parent);
}
/**
* {@inheritDoc}
*/
@Override
protected AbstractSelectClauseStateObject getParent() {
return (AbstractSelectClauseStateObject) super.getParent();
}
/**
* {@inheritDoc}
*/
public ISimpleSelectExpressionStateObjectBuilder variable(String variable) {
StateObject stateObject = buildIdentificationVariable(variable);
add(stateObject);
return this;
}
}