/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.query.processor.xml;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidProcessingException;
/**
* This condition always evaluates to true, basically is a holder for a
* {@link Program sub Program}, and can therefore be used as the
* default choice in an {@link IfInstruction IfInstruction}.
*/
public class DefaultCondition extends Condition {
public DefaultCondition(Program thenProgram){
super( thenProgram );
}
/**
* Always returns true
* @see org.teiid.query.processor.xml.Condition#evaluate(Map, List, ProcessorEnvironment)
*/
public boolean evaluate(XMLProcessorEnvironment env, XMLContext context)
throws TeiidComponentException, TeiidProcessingException{
return true;
}
public String toString(){
return "DefaultCondition"; //$NON-NLS-1$
}
/**
* @see org.teiid.query.processor.xml.Condition#getResultSetNames()
*/
public List getResultSetNames() {
return Collections.EMPTY_LIST;
}
}