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The Waikato Environment for Knowledge Analysis (WEKA), a machine learning workbench. This is the stable version. Apart from bugfixes, this version does not receive any other updates.

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/*
 *    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
 *    (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 *    ConnectionNotificationConsumer.java
 *    Copyright (C) 2005 University of Waikato, Hamilton, New Zealand
 */

package weka.gui.beans;

/**
 * Interface for Beans that can receive (dis-)connection events generated when
 * (dis-)connecting data processing nodes in the Weka KnowledgeFlow.
 * 
 * This is useful, for example, for "intelligent" filters that are able to share
 * configuration information with preceding nodes in the processing chain.
 * 
 * @author Carsten Pohle (cp AT cpohle de)
 * @version $Revision: 1.2 $
 */
public interface ConnectionNotificationConsumer {
  /**
   * Notify this object that it has been registered as a listener with a source
   * with respect to the supplied event name.
   * 
   * This method should be implemented synchronized.
   * 
   * @param eventName
   * @param source
   *          the source with which this object has been registered as a
   *          listener
   */
  public void connectionNotification(String eventName, Object source);

  /**
   * Notify this object that it has been deregistered as a listener with a
   * source with respect to the supplied event name
   * 
   * This method should be implemented synchronized.
   * 
   * @param eventName
   *          the event
   * @param source
   *          the source with which this object has been registered as a
   *          listener
   */
  public void disconnectionNotification(String eventName, Object source);

}