mirror of git://gcc.gnu.org/git/gcc.git
85 lines
3.0 KiB
Java
85 lines
3.0 KiB
Java
/* CollectionPersistenceDelegate.java - A PersistenceDelegate for Collection subclasses.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.beans.encoder;
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import java.util.Collection;
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import java.beans.Encoder;
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import java.beans.Expression;
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import java.beans.PersistenceDelegate;
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import java.beans.Statement;
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import java.util.Iterator;
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/** <p>A <code>PersistenceDelegate</code> implementation that calls
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* the no-argument constructor to create the Collection instance and
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* uses an iterator to add all the objects it reaches through it.</p>
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*
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* <p>It is used for <code>Set</code> and <code>List</code>
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* implementations.</p>
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*
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* @author Robert Schuster (robertschuster@fsfe.org)
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*/
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public class CollectionPersistenceDelegate extends PersistenceDelegate
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{
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protected Expression instantiate(Object oldInstance, Encoder out)
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{
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return new Expression(
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oldInstance,
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oldInstance.getClass(),
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"new",
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null);
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}
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protected void initialize(Class type, Object oldInstance, Object newInstance,
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Encoder out)
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{
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Iterator ite = ((Collection) oldInstance).iterator();
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while (ite.hasNext())
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{
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out.writeStatement(new Statement(oldInstance, "add",
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new Object[] { ite.next() }));
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}
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}
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}
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