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


1 package prefuse.data.event;
2
3 import java.util.EventListener JavaDoc;
4
5 import prefuse.data.column.Column;
6
7 /**
8  * Listener interface for monitoring changes to a data column.
9  *
10  * @author <a HREF="http://jheer.org">jeffrey heer</a>
11  */
12 public interface ColumnListener extends EventListener JavaDoc {
13
14     /**
15      * Notification that a data column has changed.
16      * @param src the column that has changed
17      * @param type One of {@link EventConstants#INSERT},
18      * {@link EventConstants#DELETE}, or {@link EventConstants#UPDATE}.
19      * @param start the first column index that has been changed
20      * @param end the last column index that has been changed
21      */
22     public void columnChanged(Column src, int type, int start, int end);
23     
24     /**
25      * Notification that a data column has changed.
26      * @param src the column that has changed
27      * @param idx the column row index that has changed
28      * @param prev the previous value at the given location
29      */
30     public void columnChanged(Column src, int idx, int prev);
31     
32     /**
33      * Notification that a data column has changed.
34      * @param src the column that has changed
35      * @param idx the column row index that has changed
36      * @param prev the previous value at the given location
37      */
38     public void columnChanged(Column src, int idx, long prev);
39     
40     /**
41      * Notification that a data column has changed.
42      * @param src the column that has changed
43      * @param idx the column row index that has changed
44      * @param prev the previous value at the given location
45      */
46     public void columnChanged(Column src, int idx, float prev);
47     
48     /**
49      * Notification that a data column has changed.
50      * @param src the column that has changed
51      * @param idx the column row index that has changed
52      * @param prev the previous value at the given location
53      */
54     public void columnChanged(Column src, int idx, double prev);
55     
56     /**
57      * Notification that a data column has changed.
58      * @param src the column that has changed
59      * @param idx the column row index that has changed
60      * @param prev the previous value at the given location
61      */
62     public void columnChanged(Column src, int idx, boolean prev);
63     
64     /**
65      * Notification that a data column has changed.
66      * @param src the column that has changed
67      * @param idx the column row index that has changed
68      * @param prev the previous value at the given location
69      */
70     public void columnChanged(Column src, int idx, Object JavaDoc prev);
71     
72 } // end of interface ColumnListener
73
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