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Java > Open Source Codes > prefuse > data > event > ProjectionListener


1 package prefuse.data.event;
2
3 import java.util.EventListener JavaDoc;
4
5 import prefuse.data.util.ColumnProjection;
6
7 /**
8  * Listener interface for monitoring changes to the state of a
9  * column projection filter.
10  *
11  * @author <a HREF="http://jheer.org">jeffrey heer</a>
12  */
13 public interface ProjectionListener extends EventListener JavaDoc {
14
15     /**
16      * Notification that the internal state of a projection has been updated.
17      * @param projection the source of the change notification
18      */
19     public void projectionChanged(ColumnProjection projection);
20     
21 } // end of interface ProjectionListener
22
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