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/*******************************************************************************
 * Copyright (c) 2000, 2010 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.runtime;

import org.osgi.framework.Bundle;

/**
 * A log to which status events can be written.  Logs appear on individual
 * plug-ins and on the platform itself.  Clients can register log listeners which
 * will receive notification of all log events as they come in.
 * 
 * XXX Need to create a new log interface on common plugin. That interface should be a super interface of this ILog.
 * getBundle() would stay here. In the super interface we would have getName()
 * 
 * 
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface ILog {
	/**
	 * Adds the given log listener to this log.  Subsequently the log listener will
	 * receive notification of all log events passing through this log.
	 * This method has no effect if the identical listener is already registered on this log.
	 *
	 * @param listener the listener to add to this log
	 * @see Platform#addLogListener(ILogListener)
	 */
	public void addLogListener(ILogListener listener);

	/**
	 * Returns the plug-in with which this log is associated.
	 *
	 * @return the plug-in with which this log is associated
	 * @since 3.0
	 */
	public Bundle getBundle();

	/**
	 * Logs the given status.  The status is distributed to the log listeners
	 * installed on this log and then to the log listeners installed on the platform.
	 *
	 * @param status the status to log
	 */
	public void log(IStatus status);

	/**
	 * Removes the given log listener to this log.  Subsequently the log listener will
	 * no longer receive notification of log events passing through this log.  
	 * This method has no effect if the identical listener is not registered on this log.
	 *
	 * @param listener the listener to remove
	 * @see Platform#removeLogListener(ILogListener)
	 */
	public void removeLogListener(ILogListener listener);
}