/*
* Copyright 2008-2010 Gephi
* Authors : Cezary Bartosiak
* Mathieu Bastian <mathieu.bastian@gephi.org>
* Website : http://www.gephi.org
*
* This file is part of Gephi.
*
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
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*/
package org.gephi.statistics.spi;
import org.gephi.data.attributes.api.AttributeModel;
import org.gephi.data.attributes.type.Interval;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.GraphView;
/**
* Define a dynamic statistics implementation. A Dynamic Statistics uses
* a sliding window on a dynamc network to compute results.
* <p>
* The dynamic statistic execution is a three-steps process:
* <ol><li>The <code>execute()</code> method is called to init the statistic
* with the graph and attribute model.</li>
* <li>For every interval the <code>loop()</code> method is called with the
* network at this interval as parameter.</li>
* <li>The <code>end()</code> method is finally called.</li></ol>
* <p>
*
* @author Mathieu Bastian
*/
public interface DynamicStatistics extends Statistics {
/**
* First method to be executed in the dynamic statistic process. Initialize
* the statistics with the graph and attributes. The graph model holds the
* graph structure and the attribute model the attribute columns.
* @param graphModel the graph model
* @param attributeModel the attribute model
*/
public void execute(GraphModel graphModel, AttributeModel attributeModel);
/**
* Iteration of the dynamic statistics algorithm on a new interval. The
* graph window is a snapshot of the graph at the current <code>interval</code>.
* @param window a snapshot of the graph at the current interval
* @param interval the interval of the current snapshot
*/
public void loop(GraphView window, Interval interval);
/**
* Called at the end of the process after all loops.
*/
public void end();
/**
* Sets the minimum and maximum bound
* @param bounds the min and max bounds
*/
public void setBounds(Interval bounds);
/**
* Sets the window duration
* @param window the window duration
*/
public void setWindow(double window);
/**
* Sets the tick. The tick is how much the window is moved to the right
* at each iteration.
* @param tick the tick
*/
public void setTick(double tick);
/**
* Returns the window duration
* @return the window duration
*/
public double getWindow();
/**
* Returns the tick. The tick is how much the window is moved to the right
* at each iteration.
* @return the tick
*/
public double getTick();
/**
* Returns the min and max bounds.
* @return the bounds
*/
public Interval getBounds();
}