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Diffstat (limited to 'libjava/classpath/javax/management/AttributeChangeNotification.java')
-rw-r--r-- | libjava/classpath/javax/management/AttributeChangeNotification.java | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/libjava/classpath/javax/management/AttributeChangeNotification.java b/libjava/classpath/javax/management/AttributeChangeNotification.java new file mode 100644 index 000000000..16dbf8647 --- /dev/null +++ b/libjava/classpath/javax/management/AttributeChangeNotification.java @@ -0,0 +1,164 @@ +/* AttributeChangeNotification.java -- Notification for attribute changes + Copyright (C) 2007 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.management; + +/** + * Defines the notification used to let listeners know of + * an attribute change. The bean itself is responsible + * for creating and transmitting the notification when the + * attribute changes, by implementing + * {@link NotificationBroadcaster}. For example, if a + * bean increments the integer, <code>count</code>, it + * should send a notification with the + * <code>attributeName</code>, <code>"count"</code>, + * the <code>attributeType</code>, <code>"Integer"</code> + * and the old and new values of the attribute. + * + * @author Andrew John Hughes (gnu_andrew@member.fsf.org) + * @since 1.5 + */ +public class AttributeChangeNotification + extends Notification +{ + + /** + * Compatible with JDK 1.5 + */ + private static final long serialVersionUID = 535176054565814134L; + + /** + * The attribute type for attribute change + * notifications. + */ + public static final String ATTRIBUTE_CHANGE = "jmx.attribute.change"; + + /** + * The name of the attribute that changed. + */ + private String attributeName; + + /** + * The type of the attribute that changed. + */ + private String attributeType; + + /** + * The old value of the attribute. + */ + private Object oldValue; + + /** + * The new value of the attribute. + */ + private Object newValue; + + /** + * Constructs a new {@link AttributeChangeNotification} + * with the specified source, sequence number, timestamp, + * message, and the attribute name, type, old value and + * new value. + * + * @param source the producer of the notification, which + * is usually the bean that changed the + * attribute. + * @param sequenceNumber the sequence number of the + * notification. + * @param timeStamp the date and time of the notification. + * @param msg the message content of the notification. + * @param name the name of the attribute. + * @param type the type of the attribute. + * @param oldVal the old value of the attribute. + * @param newVal the new value of the attribute. + */ + public AttributeChangeNotification(Object source, + long sequenceNumber, + long timeStamp, + String msg, String name, + String type, Object oldVal, + Object newVal) + { + super(ATTRIBUTE_CHANGE, source, sequenceNumber, + timeStamp, msg); + attributeName = name; + attributeType = type; + oldValue = oldVal; + newValue = newVal; + } + + /** + * Returns the name of the attribute that changed. + * + * @return the name of the attribute. + */ + public String getAttributeName() + { + return attributeName; + } + + /** + * Returns the type of the attribute that changed. + * + * @return the type of the attribute. + */ + public String getAttributeType() + { + return attributeType; + } + + /** + * Returns the old value of the attribute. + * + * @return the old value. + */ + public Object getOldValue() + { + return oldValue; + } + + /** + * Returns the new value of the attribute. + * + * @return the new value. + */ + public Object getNewValue() + { + return newValue; + } + +} |