src.java.util.prefs.NodeChangeEvent Maven / Gradle / Ivy
/*
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* 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.
*
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*/
package java.util.prefs;
import java.io.NotSerializableException;
/**
* An event emitted by a Preferences node to indicate that
* a child of that node has been added or removed.
*
* Note, that although NodeChangeEvent inherits Serializable interface from
* java.util.EventObject, it is not intended to be Serializable. Appropriate
* serialization methods are implemented to throw NotSerializableException.
*
* @author Josh Bloch
* @see Preferences
* @see NodeChangeListener
* @see PreferenceChangeEvent
* @since 1.4
* @serial exclude
*/
public class NodeChangeEvent extends java.util.EventObject {
/**
* The node that was added or removed.
*
* @serial
*/
private Preferences child;
/**
* Constructs a new NodeChangeEvent instance.
*
* @param parent The parent of the node that was added or removed.
* @param child The node that was added or removed.
*/
public NodeChangeEvent(Preferences parent, Preferences child) {
super(parent);
this.child = child;
}
/**
* Returns the parent of the node that was added or removed.
*
* @return The parent Preferences node whose child was added or removed
*/
public Preferences getParent() {
return (Preferences) getSource();
}
/**
* Returns the node that was added or removed.
*
* @return The node that was added or removed.
*/
public Preferences getChild() {
return child;
}
/**
* Throws NotSerializableException, since NodeChangeEvent objects are not
* intended to be serializable.
*/
private void writeObject(java.io.ObjectOutputStream out)
throws NotSerializableException {
throw new NotSerializableException("Not serializable.");
}
/**
* Throws NotSerializableException, since NodeChangeEvent objects are not
* intended to be serializable.
*/
private void readObject(java.io.ObjectInputStream in)
throws NotSerializableException {
throw new NotSerializableException("Not serializable.");
}
// Defined so that this class isn't flagged as a potential problem when
// searches for missing serialVersionUID fields are done.
private static final long serialVersionUID = 8068949086596572957L;
}