/*
* Copyright (c) 2006, 2007, 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 com.sun.tools.jconsole;
import javax.management.MBeanServerConnection;
import java.beans.PropertyChangeListener;
import javax.swing.event.SwingPropertyChangeSupport;
/**
* {@code JConsoleContext} represents a JConsole connection to a target
* application.
* <p>
* {@code JConsoleContext} notifies any {@code PropertyChangeListeners}
* about the {@linkplain #CONNECTION_STATE_PROPERTY <i>ConnectionState</i>}
* property change to {@link ConnectionState#CONNECTED CONNECTED} and
* {@link ConnectionState#DISCONNECTED DISCONNECTED}.
* The {@code JConsoleContext} instance will be the source for
* any generated events.
* <p>
*
* @since 1.6
*/
public interface JConsoleContext {
/**
* The {@link ConnectionState ConnectionState} bound property name.
*/
public static String CONNECTION_STATE_PROPERTY = "connectionState";
/**
* Values for the {@linkplain #CONNECTION_STATE_PROPERTY
* <i>ConnectionState</i>} bound property.
*/
public enum ConnectionState {
/**
* The connection has been successfully established.
*/
CONNECTED,
/**
* No connection present.
*/
DISCONNECTED,
/**
* The connection is being attempted.
*/
CONNECTING
}
/**
* Returns the {@link MBeanServerConnection MBeanServerConnection} for the
* connection to an application. The returned
* {@code MBeanServerConnection} object becomes invalid when
* the connection state is changed to the
* {@link ConnectionState#DISCONNECTED DISCONNECTED} state.
*
* @return the {@code MBeanServerConnection} for the
* connection to an application.
*/
public MBeanServerConnection getMBeanServerConnection();
/**
* Returns the current connection state.
* @return the current connection state.
*/
public ConnectionState getConnectionState();
/**
* Add a {@link java.beans.PropertyChangeListener PropertyChangeListener}
* to the listener list.
* The listener is registered for all properties.
* The same listener object may be added more than once, and will be called
* as many times as it is added.
* If {@code listener} is {@code null}, no exception is thrown and
* no action is taken.
*
* @param listener The {@code PropertyChangeListener} to be added
*/
public void addPropertyChangeListener(PropertyChangeListener listener);
/**
* Removes a {@link java.beans.PropertyChangeListener PropertyChangeListener}
* from the listener list. This
* removes a {@code PropertyChangeListener} that was registered for all
* properties. If {@code listener} was added more than once to the same
* event source, it will be notified one less time after being removed. If
* {@code listener} is {@code null}, or was never added, no exception is
* thrown and no action is taken.
*
* @param listener the {@code PropertyChangeListener} to be removed
*/
public void removePropertyChangeListener(PropertyChangeListener listener);
}