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-/* StateEditable.java -- Interface for collaborating with StateEdit.
- Copyright (C) 2002, 2003 Free Software Foundation, Inc.
-
-This file is part of GNU Classpath.
-
-GNU Classpath 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, or (at your option)
-any later version.
-
-GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the
-Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301 USA.
-
-Linking this library statically or dynamically with other modules is
-making a combined work based on this library. Thus, the terms and
-conditions of the GNU General Public License cover the whole
-combination.
-
-As a special exception, the copyright holders of this library give you
-permission to link this library with independent modules to produce an
-executable, regardless of the license terms of these independent
-modules, and to copy and distribute the resulting executable under
-terms of your choice, provided that you also meet, for each linked
-independent module, the terms and conditions of the license of that
-module. An independent module is a module which is not derived from
-or based on this library. If you modify this library, you may extend
-this exception to your version of the library, but you are not
-obligated to do so. If you do not wish to do so, delete this
-exception statement from your version. */
-
-package javax.swing.undo;
-
-import java.util.Hashtable;
-
-
-/**
- * The interface for objects whose state can be undone or redone by a
- * {@link StateEdit} action.
- *
- * <p>The following example shows how to write a class that implements
- * this interface.
- *
- * <pre> class Foo
- * implements StateEditable
- * {
- * private String name;
- *
- * public void setName(String n) { name = n; }
- *
- * public void restoreState(Hashtable h)
- * {
- * if (h.containsKey("name"))
- * setName((String) h.get("name"));
- * }
- *
- * public void storeState(Hashtable s)
- * {
- * s.put("name", name);
- * }
- * }</pre>
- *
- * @see StateEdit
- *
- * @author Andrew Selkirk (aselkirk@sympatico.ca)
- * @author Sascha Brawer (brawer@dandelis.ch)
- */
-public interface StateEditable
-{
- /**
- * The ID of the Java source file in Sun&#x2019;s Revision Control
- * System (RCS). This certainly should not be part of the API
- * specification. But in order to be API-compatible with
- * Sun&#x2019;s reference implementation, GNU Classpath also has to
- * provide this field. However, we do not try to match its value.
- */
- String RCSID = "";
-
-
- /**
- * Performs an edit action, taking any editable state information
- * from the specified hash table.
- *
- * <p><b>Note to implementors of this interface:</b> To increase
- * efficiency, the <code>StateEdit</code> class {@linkplan
- * StateEdit#removeRedundantState() removes redundant state
- * information}. Therefore, implementations of this interface must be
- * prepared for the case where certain keys were stored into the
- * table by {@link #storeState}, but are not present anymore
- * when the <code>restoreState</code> method gets called.
- *
- * @param state a hash table containing the relevant state
- * information.
- */
- void restoreState(Hashtable state);
-
-
- /**
- * Stores any editable state information into the specified hash
- * table.
- *
- * @param state a hash table for storing relevant state
- * information.
- */
- void storeState(Hashtable state);
-}
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