/* * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package java.beans.beancontext; import java.util.EventObject; import java.beans.beancontext.BeanContext; /** *
* BeanContextEvent
is the abstract root event class
* for all events emitted
* from, and pertaining to the semantics of, a BeanContext
.
* This class introduces a mechanism to allow the propagation of
* BeanContextEvent
subclasses through a hierarchy of
* BeanContext
s. The setPropagatedFrom()
* and getPropagatedFrom()
methods allow a
* BeanContext
to identify itself as the source
* of a propagated event.
*
BeanContext
associated with this event.
* @return the BeanContext
associated with this event.
*/
public BeanContext getBeanContext() { return (BeanContext)getSource(); }
/**
* Sets the BeanContext
from which this event was propagated.
* @param bc the BeanContext
from which this event
* was propagated
*/
public synchronized void setPropagatedFrom(BeanContext bc) {
propagatedFrom = bc;
}
/**
* Gets the BeanContext
from which this event was propagated.
* @return the BeanContext
from which this
* event was propagated
*/
public synchronized BeanContext getPropagatedFrom() {
return propagatedFrom;
}
/**
* Reports whether or not this event is
* propagated from some other BeanContext
.
* @return true
if propagated, false
* if not
*/
public synchronized boolean isPropagated() {
return propagatedFrom != null;
}
/*
* fields
*/
/**
* The BeanContext
from which this event was propagated
*/
protected BeanContext propagatedFrom;
}