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16 package org.apache.commons.jelly.tags.core;
17
18 import org.apache.commons.jelly.JellyTagException;
19 import org.apache.commons.jelly.TagSupport;
20 import org.apache.commons.jelly.XMLOutput;
21
22 /*** A tag which conditionally evaluates its body based on some condition
23 *
24 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
25 * @version $Revision: 155420 $
26 */
27 public class ChooseTag extends TagSupport {
28
29 private boolean blockEvaluated;
30
31 public ChooseTag() {
32 }
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36 public void doTag(XMLOutput output) throws JellyTagException {
37 setBlockEvaluated(false);
38 invokeBody(output);
39 }
40
41 protected boolean isBlockEvaluated() {
42 return blockEvaluated;
43 }
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45 protected void setBlockEvaluated(boolean blockEvaluated) {
46 this.blockEvaluated = blockEvaluated;
47 }
48 }