package org.jacorb.notification.filter.etcl;
/*
* JacORB - a free Java ORB
*
* Copyright (C) 1999-2014 Gerald Brose / The JacORB Team.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
import org.jacorb.notification.filter.EvaluationContext;
import org.jacorb.notification.filter.EvaluationException;
import org.jacorb.notification.filter.EvaluationResult;
import antlr.Token;
/** A simple node to represent EQ operation */
public class EqOperator extends BinaryOperator
{
private final static String VALUE = "==";
public EqOperator(Token tok)
{
super(tok);
setName("EqOperator");
}
public EvaluationResult evaluate(EvaluationContext context, EvaluationResult left,
EvaluationResult rightVal) throws EvaluationException
{
return (left.compareTo(rightVal) == 0) ? EvaluationResult.BOOL_TRUE
: EvaluationResult.BOOL_FALSE;
}
public String toString()
{
return VALUE;
}
protected void visitThis(AbstractTCLVisitor visitor) throws VisitorException
{
visitor.visitEq(this);
}
}