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| <h2 title="Interface Rule" class="title">Interface Rule</h2> |
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| <pre>public interface <span class="strong">Rule</span></pre> |
| <div class="block">A Rule evaluates to true of false given a LoggingEvent object, and can notify |
| listeners when the underlying implementation of this Rule has it's |
| criteria changed by using the standard PropertyChangeListener infrastructure.</div> |
| <dl><dt><span class="strong">Author:</span></dt> |
| <dd>Paul Smith (psmith@apache.org), Scott Deboy (sdeboy@apache.org)</dd></dl> |
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| <h3>Method Summary</h3> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/rule/Rule.html#addPropertyChangeListener(java.beans.PropertyChangeListener)">addPropertyChangeListener</a></strong>(<a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/beans/PropertyChangeListener.html?is-external=true" title="class or interface in java.beans">PropertyChangeListener</a> listener)</code> |
| <div class="block">Adds a PropertyChangeListener to this instance, which is notified when |
| underlying Rule information has changed.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/rule/Rule.html#evaluate(org.apache.log4j.spi.LoggingEvent, java.util.Map)">evaluate</a></strong>(org.apache.log4j.spi.LoggingEvent e, |
| <a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a> matches)</code> |
| <div class="block">Returns true if this implementation of the rule accepts the LoggingEvent, |
| or false if not.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/rule/Rule.html#removePropertyChangeListener(java.beans.PropertyChangeListener)">removePropertyChangeListener</a></strong>(<a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/beans/PropertyChangeListener.html?is-external=true" title="class or interface in java.beans">PropertyChangeListener</a> listener)</code> |
| <div class="block">Removes a known PropertyChangeListener from this Rule.</div> |
| </td> |
| </tr> |
| </table> |
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| <h4>evaluate</h4> |
| <pre>boolean evaluate(org.apache.log4j.spi.LoggingEvent e, |
| <a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a> matches)</pre> |
| <div class="block">Returns true if this implementation of the rule accepts the LoggingEvent, |
| or false if not. |
| |
| <p>What True/False means can be client-specific.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>e</code> - LoggingEvent this instance will evaluate</dd><dd><code>matches</code> - a Map of event field keys to Sets of matching strings (may be null) which will be |
| updated during execution of this method to include field and string matches based on the rule |
| evaluation results</dd> |
| <dt><span class="strong">Returns:</span></dt><dd>true if this Rule instance accepts the event, otherwise false.</dd></dl> |
| </li> |
| </ul> |
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| <h4>addPropertyChangeListener</h4> |
| <pre>void addPropertyChangeListener(<a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/beans/PropertyChangeListener.html?is-external=true" title="class or interface in java.beans">PropertyChangeListener</a> listener)</pre> |
| <div class="block">Adds a PropertyChangeListener to this instance, which is notified when |
| underlying Rule information has changed. |
| (there are no specific property name events).</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>listener</code> - listener</dd></dl> |
| </li> |
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| <h4>removePropertyChangeListener</h4> |
| <pre>void removePropertyChangeListener(<a href="http://docs.oracle.com/javase/1.4.2/docs/api/java/beans/PropertyChangeListener.html?is-external=true" title="class or interface in java.beans">PropertyChangeListener</a> listener)</pre> |
| <div class="block">Removes a known PropertyChangeListener from this Rule.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>listener</code> - listener</dd></dl> |
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