/*
// $Id: //open/dev/farrago/src/org/eigenbase/oj/rex/OJRexIgnoredCallImplementor.java#9 $
// Package org.eigenbase is a class library of data management components.
// Copyright (C) 2005-2009 The Eigenbase Project
// Copyright (C) 2002-2009 SQLstream, Inc.
// Copyright (C) 2005-2009 LucidEra, Inc.
// Portions Copyright (C) 2003-2009 John V. Sichi
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 of the License, or (at your option)
// any later version approved by The Eigenbase Project.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
package org.eigenbase.oj.rex;

import openjava.ptree.*;

import org.eigenbase.rex.*;


/**
 * OJRexIgnoredCallImplementor implements {@link OJRexImplementor} by completely
 * ignoring a call and returning its one and only operand.
 *
 * @author John V. Sichi
 * @version $Id: //open/dev/farrago/src/org/eigenbase/oj/rex/OJRexIgnoredCallImplementor.java#9 $
 */
public class OJRexIgnoredCallImplementor
    implements OJRexImplementor
{
    //~ Methods ----------------------------------------------------------------

    public Expression implement(
        RexToOJTranslator translator,
        RexCall call,
        Expression [] operands)
    {
        assert (operands.length == 1);
        return operands[0];
    }

    public boolean canImplement(RexCall call)
    {
        return true;
    }
}

// End OJRexIgnoredCallImplementor.java
