Charlie Groves
8f8a50c9e8
match DSets and setting attributes. With the old behvaior, if a client subscribed to a DObject and modified an OidList on it in a single pass, it could miss the modification. The DObject is serialized immediately when the server gets the subscription request, but events aren't sent for that subscription till it's processed the next time the omgr queue comes round. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6420 542714f4-19e9-0310-aa3c-eee0fc999fb1
109 lines
3.1 KiB
Java
109 lines
3.1 KiB
Java
//
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// $Id$
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2011 Three Rings Design, Inc., All Rights Reserved
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// http://code.google.com/p/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.presents.dobj;
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/**
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* An object removed event is dispatched when an object is removed from an
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* <code>OidList</code> attribute of a distributed object. It can also be
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* constructed to request the removal of an oid from an
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* <code>OidList</code> attribute of an object and posted to the dobjmgr.
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*
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* @see DObjectManager#postEvent
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*/
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public class ObjectRemovedEvent extends NamedEvent
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{
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/**
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* Constructs a new object removed event on the specified target
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* object with the supplied oid list attribute name and object id to
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* remove.
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*
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* @param targetOid the object id of the object from whose oid list we
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* will remove an oid.
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* @param name the name of the attribute (data member) from which to
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* remove the specified oid.
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* @param oid the oid to remove from the oid list attribute.
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*/
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public ObjectRemovedEvent (int targetOid, String name, int oid)
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{
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this (targetOid, name, oid, false);
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}
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protected ObjectRemovedEvent (int targetOid, String name, int oid, boolean alreadyApplied)
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{
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super(targetOid, name);
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_oid = oid;
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_alreadyApplied = alreadyApplied;
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}
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/**
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* Constructs a blank instance of this event in preparation for
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* unserialization from the network.
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*/
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public ObjectRemovedEvent ()
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{
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}
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/**
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* Returns the oid that has been removed.
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*/
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public int getOid ()
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{
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return _oid;
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}
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@Override
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public boolean alreadyApplied ()
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{
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return _alreadyApplied;
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}
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@Override
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public boolean applyToObject (DObject target)
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throws ObjectAccessException
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{
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if (!_alreadyApplied) {
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OidList list = (OidList)target.getAttribute(_name);
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list.remove(_oid);
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}
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return true;
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}
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@Override
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protected void notifyListener (Object listener)
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{
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if (listener instanceof OidListListener) {
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((OidListListener)listener).objectRemoved(this);
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}
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}
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@Override
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protected void toString (StringBuilder buf)
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{
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buf.append("OBJREM:");
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super.toString(buf);
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buf.append(", oid=").append(_oid);
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}
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protected int _oid;
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protected transient boolean _alreadyApplied;
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}
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