//
// $Id$
//
// Narya library - tools for developing networked games
// Copyright (C) 2002-2010 Three Rings Design, Inc., All Rights Reserved
// http://code.google.com/p/narya/
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

package com.threerings.presents.dobj;

/**
 * An object destroyed event is dispatched when an object has been removed
 * from the distributed object system. It can also be constructed to
 * request an attribute change on an object and posted to the dobjmgr.
 *
 * @see DObjectManager#postEvent
 */
public class ObjectDestroyedEvent extends DEvent
{
    /**
     * Constructs a new object destroyed event for the specified
     * distributed object.
     *
     * @param targetOid the object id of the object that will be destroyed.
     */
    public ObjectDestroyedEvent (int targetOid)
    {
        super(targetOid);
    }

    /**
     * Constructs a blank instance of this event in preparation for
     * unserialization from the network.
     */
    public ObjectDestroyedEvent ()
    {
    }

    @Override
    public boolean applyToObject (DObject target)
        throws ObjectAccessException
    {
        // nothing to do in preparation for destruction, the omgr will
        // have to recognize this type of event and do the right thing
        return true;
    }

    @Override
    protected void notifyListener (Object listener)
    {
        if (listener instanceof ObjectDeathListener) {
            ((ObjectDeathListener)listener).objectDestroyed(this);
        }
    }

    @Override
    protected void toString (StringBuilder buf)
    {
        buf.append("DESTROY:");
        super.toString(buf);
    }
}