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/*******************************************************************************
* Copyright (c) 2004, 2008 Tasktop Technologies 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:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.mylyn.commons.activity.ui.spi;
/**
* Extend to monitor periods of user activity and inactivity.
*
* @author Mik Kersten
* @author Rob Elves
* @since 3.7
*/
public abstract class AbstractUserActivityMonitor {
private long lastEventTimeStamp = -1;
/**
* Returns the priority of the monitor. A lower priority means that the monitor is preferred over other monitors.
* The priority of the default monitor is <code>0</code>.
*
* @since 3.7
*/
public abstract int getPriority();
/**
* @since 3.7
*/
public long getLastInteractionTime() {
synchronized (this) {
return lastEventTimeStamp;
}
}
/**
* @since 3.7
*/
public void setLastEventTime(long lastEventTime) {
synchronized (this) {
lastEventTimeStamp = lastEventTime;
}
}
/**
* @since 3.7
*/
public abstract void start();
/**
* @since 3.7
*/
public abstract void stop();
/**
* @return false if monitor unable to run (i.e. startup failures of any kind)
* @since 3.7
*/
public boolean isEnabled() {
return true;
}
/**
* @since 3.7
*/
public String getOriginId() {
return null;
}
}
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