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/**

Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016.  All rights reserved.

Contact:
     SYSTAP, LLC DBA Blazegraph
     2501 Calvert ST NW #106
     Washington, DC 20008
     [email protected]

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; version 2 of the License.

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
*/
/*
 * Created on Oct 5, 2010
 */

package com.bigdata.bop;

import java.util.Map;

/**
 * Base class for immutable operators such as {@link Var} and {@link Constant}.
 * These operators do not deep copy their data and do not permit decoration with
 * annotations.
 * 
 * @author Bryan Thompson
 * @version $Id$
 */
abstract public class ImmutableBOp extends BOpBase {

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    /**
     * @param op
     */
    public ImmutableBOp(ImmutableBOp op) {
        super(op);
    }

    /**
     * @param args
     * @param annotations
     */
    public ImmutableBOp(BOp[] args, Map annotations) {
        super(args, annotations);
    }
    
    /*
     * Overrides for the copy-on-write mutation API. 
     */

    @Override
    final protected Object _setProperty(String name,Object value) {
        throw new UnsupportedOperationException();
    }
    
    @Override
    final protected void _clearProperty(String name) {
        throw new UnsupportedOperationException();
    }

}