46 lines
1.5 KiB
Java
46 lines
1.5 KiB
Java
/*
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ZZRODimension.java
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*
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* Copyright (c) 2000, Ted Nelson and Tuomas Lukka
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*
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* You may use and distribute under the terms of either the GNU Lesser
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* General Public License, either version 2 of the license or,
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* at your choice, any later version. Alternatively, you may use and
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* distribute under the terms of the XPL.
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*
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* See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of
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* the licenses.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the README
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* file for more details.
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*
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*/
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/*
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* Written by Tuomas Lukka
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*/
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package org.gzigzag;
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import java.util.*;
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/** A read-only dimension.
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* This class simply extends ZZDimension by implementing the
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* abstract methods that would modify the dimension by code that
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* simply throws an exception.
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* The only method that subclasses will need to override is s.
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*/
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public abstract class ZZRODimension extends ZZDimension {
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public static final String rcsid = "$Id: ZZRODimension.java,v 1.10 2000/11/05 19:11:13 tjl Exp $";
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public abstract ZZCellHandle s(ZZCellHandle c, int steps, ZZObs o);
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public void connect(ZZCellHandle c, ZZCellHandle d) {
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throw new ZZError("Read-only dimension");
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}
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public void disconnect(ZZCellHandle c, int dir) {
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throw new ZZError("Read-only dimension");
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}
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public void excise(ZZCellHandle c) {
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// Do nothing.
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}
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}
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