Convert Narya (most of the way) over to a Maven Ant task based build. The
ActionScript bits remain belligerent, but the Java stuff is mostly shipshape. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@6222 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
@@ -0,0 +1,215 @@
|
||||
//
|
||||
// $Id$
|
||||
//
|
||||
// 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;
|
||||
|
||||
import java.lang.reflect.Array;
|
||||
import java.lang.reflect.Field;
|
||||
|
||||
import com.samskivert.util.StringUtil;
|
||||
|
||||
import com.threerings.presents.net.Transport;
|
||||
|
||||
/**
|
||||
* An element updated event is dispatched when an element of an array field in a distributed object
|
||||
* is updated. It can also be constructed to request the update of an entry and posted to the
|
||||
* dobjmgr.
|
||||
*
|
||||
* @see DObjectManager#postEvent
|
||||
*/
|
||||
public class ElementUpdatedEvent extends NamedEvent
|
||||
{
|
||||
/**
|
||||
* Constructs a new element updated event on the specified target object with the supplied
|
||||
* attribute name, element and index.
|
||||
*
|
||||
* @param targetOid the object id of the object whose attribute has changed.
|
||||
* @param name the name of the attribute (data member) for which an element has changed.
|
||||
* @param value the new value of the element (in the case of primitive types, the
|
||||
* reflection-defined object-alternative is used).
|
||||
* @param ovalue the previous value of the element (in the case of primitive types, the
|
||||
* reflection-defined object-alternative is used).
|
||||
* @param index the index in the array of the updated element.
|
||||
*/
|
||||
public ElementUpdatedEvent (int targetOid, String name, Object value, Object ovalue, int index)
|
||||
{
|
||||
this(targetOid, name, value, ovalue, index, Transport.DEFAULT);
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a new element updated event on the specified target object with the supplied
|
||||
* attribute name, element and index.
|
||||
*
|
||||
* @param targetOid the object id of the object whose attribute has changed.
|
||||
* @param name the name of the attribute (data member) for which an element has changed.
|
||||
* @param value the new value of the element (in the case of primitive types, the
|
||||
* reflection-defined object-alternative is used).
|
||||
* @param ovalue the previous value of the element (in the case of primitive types, the
|
||||
* reflection-defined object-alternative is used).
|
||||
* @param index the index in the array of the updated element.
|
||||
* @param transport a hint as to the type of transport desired for the event.
|
||||
*/
|
||||
public ElementUpdatedEvent (
|
||||
int targetOid, String name, Object value, Object ovalue, int index, Transport transport)
|
||||
{
|
||||
super(targetOid, name, transport);
|
||||
_value = value;
|
||||
_oldValue = ovalue;
|
||||
_index = index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a blank instance of this event in preparation for unserialization from the
|
||||
* network.
|
||||
*/
|
||||
public ElementUpdatedEvent ()
|
||||
{
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element.
|
||||
*/
|
||||
public Object getValue ()
|
||||
{
|
||||
return _value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the value of the element prior to the application of this event.
|
||||
*/
|
||||
public Object getOldValue ()
|
||||
{
|
||||
return _oldValue;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the index of the element.
|
||||
*/
|
||||
public int getIndex ()
|
||||
{
|
||||
return _index;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element as a short. This will fail if the element in question
|
||||
* is not a short.
|
||||
*/
|
||||
public short getShortValue ()
|
||||
{
|
||||
return ((Short)_value).shortValue();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element as an int. This will fail if the element in question is
|
||||
* not an int.
|
||||
*/
|
||||
public int getIntValue ()
|
||||
{
|
||||
return ((Integer)_value).intValue();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element as a long. This will fail if the element in question is
|
||||
* not a long.
|
||||
*/
|
||||
public long getLongValue ()
|
||||
{
|
||||
return ((Long)_value).longValue();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element as a float. This will fail if the element in question
|
||||
* is not a float.
|
||||
*/
|
||||
public float getFloatValue ()
|
||||
{
|
||||
return ((Float)_value).floatValue();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the new value of the element as a double. This will fail if the element in question
|
||||
* is not a double.
|
||||
*/
|
||||
public double getDoubleValue ()
|
||||
{
|
||||
return ((Double)_value).doubleValue();
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean alreadyApplied ()
|
||||
{
|
||||
return (_oldValue != UNSET_OLD_VALUE);
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean applyToObject (DObject target)
|
||||
throws ObjectAccessException
|
||||
{
|
||||
if (!alreadyApplied()) {
|
||||
try {
|
||||
// fetch the array field from the object
|
||||
Field field = target.getClass().getField(_name);
|
||||
Class<?> ftype = field.getType();
|
||||
|
||||
// sanity check
|
||||
if (!ftype.isArray()) {
|
||||
String msg = "Requested to set element on non-array field.";
|
||||
throw new Exception(msg);
|
||||
}
|
||||
|
||||
// grab the previous value to provide to interested parties
|
||||
_oldValue = Array.get(field.get(target), _index);
|
||||
|
||||
// we don't do any magical expansion or any funny business; the array should be big
|
||||
// enough to contain the value being updated or we'll throw an
|
||||
// ArrayIndexOutOfBoundsException
|
||||
Array.set(field.get(target), _index, _value);
|
||||
|
||||
} catch (Exception e) {
|
||||
String msg = "Error updating element [field=" + _name + ", index=" + _index + "]";
|
||||
throw new ObjectAccessException(msg, e);
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void notifyListener (Object listener)
|
||||
{
|
||||
if (listener instanceof ElementUpdateListener) {
|
||||
((ElementUpdateListener)listener).elementUpdated(this);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
protected void toString (StringBuilder buf)
|
||||
{
|
||||
buf.append("UPDATE:");
|
||||
super.toString(buf);
|
||||
buf.append(", value=");
|
||||
StringUtil.toString(buf, _value);
|
||||
buf.append(", index=").append(_index);
|
||||
}
|
||||
|
||||
protected Object _value;
|
||||
protected int _index;
|
||||
protected transient Object _oldValue = UNSET_OLD_VALUE;
|
||||
}
|
||||
Reference in New Issue
Block a user