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Java > Open Source Codes > jimm > datavision > FieldWalker


1 package jimm.datavision;
2 import jimm.datavision.field.Field;
3
4 /**
5  * The field walker interface is used by those wishing to perform an action
6  * on every field in a report. It is used as an argument to
7  * <code>Report.withFieldsDo</code>. Typical use:
8  *
9  * <pre><code>
10  * report.withFieldsDo(new FieldWalker() {
11  * public void step(Field f) {
12  * // Do something with the field
13  * }
14  * });
15  * </code></pre>
16  *
17  * @author Jim Menard, <a HREF="mailto:jimm@io.com">jimm@io.com</a>
18  */
19 public interface FieldWalker {
20
21 /**
22  * This method is called once for each field, when used from within
23  * <code>Report.withFieldsDo</code>.
24  *
25  * @param f a field
26  */
27 public void step(Field f);
28
29 }
30
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