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// --- BEGIN COPYRIGHT BLOCK ---
// 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; version 2 of the License.
//
// 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package com.netscape.certsrv.logging;
import java.util.*;
/**
* An interface represents a log queue. A log queue
* is a queue of pending log events to be dispatched
* to a set of registered ILogEventListeners.
*
* @version $Revision$, $Date$
*/
public interface ILogQueue {
/**
* Dispatch the log event to all registered log event listeners.
*
* @param evt the log event
*/
public void log(ILogEvent evt);
/**
* Flushes log queue, flushes all registered listeners.
* Messages should be written to their destination.
*/
public void flush();
/**
* Registers an event listener.
*
* @param listener The log event listener to be registered
* to this queue.
*/
public void addLogEventListener(ILogEventListener listener);
/**
* Removes an event listener.
*
* @param listener The log event listener to be removed from this queue.
*/
public void removeLogEventListener(ILogEventListener listener);
/**
* Initializes the log queue.
* <P>
*
*/
public void init();
/**
* Stops this log queue:shuts down all registered log event listeners.
* <P>
*/
public void shutdown();
}
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