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/*
* EBComponent.java - An EditBus component
* Copyright (C) 1999 Slava Pestov
*
* This program 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
* of the License, or any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package org.gjt.sp.jedit;
/**
* A component on the EditBus. Every plugin class that uses the EditBus for
* receiving messages must implement this interface.
*
* @see org.gjt.sp.jedit.EBMessage
*
* @author Slava Pestov
* @author John Gellene (API documentation)
* @version $Id: EBComponent.java 12504 2008-04-22 23:12:43Z ezust $
*
* @since jEdit 2.2pre6
*/
public interface EBComponent
{
/**
* Handles a message sent on the EditBus.
*
* This method must specify the type of responses the plugin will have
* for various subclasses of the {@link EBMessage} class. Typically
* this is done with one or more <code>if</code> blocks that test
* whether the message is an instance of a derived message class in
* which the component has an interest. For example:
*
* <pre> if(msg instanceof BufferUpdate) {
* // a buffer's state has changed!
* }
* else if(msg instanceof ViewUpdate) {
* // a view's state has changed!
* }
* // ... and so on</pre>
*
* @param message The message
*/
void handleMessage(EBMessage message);
}
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