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| <div class="subTitle">org.apache.log4j.spi</div> |
| <h2 title="Interface ErrorHandler" class="title">Interface ErrorHandler</h2> |
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| <pre>public interface <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.35">ErrorHandler</a></pre> |
| <div class="block">Appenders may delegate their error handling to |
| <code>ErrorHandlers</code>. |
| <p/> |
| <p>Error handling is a particularly tedious to get right because by |
| definition errors are hard to predict and to reproduce. |
| <p/> |
| <p/> |
| <p>Please take the time to contact the author in case you discover |
| that errors are not properly handled. You are most welcome to |
| suggest new error handling policies or criticize existing policies.</div> |
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| <!-- ========== METHOD SUMMARY =========== --> |
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| <h3>Method Summary</h3> |
| <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error(java.lang.String)">error</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message)</code> |
| <div class="block">This method is normally used to just print the error message |
| passed as a parameter.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error(java.lang.String, java.lang.Exception, int)">error</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a> e, |
| int errorCode)</code> |
| <div class="block">Equivalent to the <a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error(java.lang.String, java.lang.Exception, int, org.apache.log4j.spi.LoggingEvent)"><code>error(String, Exception, int, |
| LoggingEvent)</code></a> with the the event parameter set to |
| <code>null</code>.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error(java.lang.String, java.lang.Exception, int, org.apache.log4j.spi.LoggingEvent)">error</a></strong>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a> e, |
| int errorCode, |
| <a href="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</a> event)</code> |
| <div class="block">This method is invoked to handle the error.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setAppender(org.apache.log4j.Appender)">setAppender</a></strong>(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</code> |
| <div class="block">Set the appender for which errors are handled.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setBackupAppender(org.apache.log4j.Appender)">setBackupAppender</a></strong>(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</code> |
| <div class="block">Set the appender to fallback upon in case of failure.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setLogger(org.apache.log4j.Logger)">setLogger</a></strong>(<a href="../../../../org/apache/log4j/Logger.html" title="class in org.apache.log4j">Logger</a> logger)</code> |
| <div class="block">Add a reference to a logger to which the failing appender might |
| be attached to.</div> |
| </td> |
| </tr> |
| </table> |
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| <h3>Method Detail</h3> |
| <a name="setLogger(org.apache.log4j.Logger)"> |
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| <h4>setLogger</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.46">setLogger</a>(<a href="../../../../org/apache/log4j/Logger.html" title="class in org.apache.log4j">Logger</a> logger)</pre> |
| <div class="block">Add a reference to a logger to which the failing appender might |
| be attached to. The failing appender will be searched and |
| replaced only in the loggers you add through this method.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>logger</code> - One of the loggers that will be searched for the failing |
| appender in view of replacement.</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.2</dd></dl> |
| </li> |
| </ul> |
| <a name="error(java.lang.String, java.lang.Exception, int)"> |
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| <h4>error</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.58">error</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a> e, |
| int errorCode)</pre> |
| <div class="block">Equivalent to the <a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error(java.lang.String, java.lang.Exception, int, org.apache.log4j.spi.LoggingEvent)"><code>error(String, Exception, int, |
| LoggingEvent)</code></a> with the the event parameter set to |
| <code>null</code>.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>message</code> - The message associated with the error.</dd><dd><code>e</code> - The Exception that was thrown when the error occurred.</dd><dd><code>errorCode</code> - The error code associated with the error.</dd></dl> |
| </li> |
| </ul> |
| <a name="error(java.lang.String)"> |
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| <h4>error</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.66">error</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message)</pre> |
| <div class="block">This method is normally used to just print the error message |
| passed as a parameter.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>message</code> - The message associated with the error.</dd></dl> |
| </li> |
| </ul> |
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| <h4>error</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.78">error</a>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> message, |
| <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Exception.html?is-external=true" title="class or interface in java.lang">Exception</a> e, |
| int errorCode, |
| <a href="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</a> event)</pre> |
| <div class="block">This method is invoked to handle the error.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>message</code> - The message associated with the error.</dd><dd><code>e</code> - The Exception that was thrown when the error occurred.</dd><dd><code>errorCode</code> - The error code associated with the error.</dd><dd><code>event</code> - The logging event that the failing appender is asked |
| to log.</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.2</dd></dl> |
| </li> |
| </ul> |
| <a name="setAppender(org.apache.log4j.Appender)"> |
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| <h4>setAppender</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.87">setAppender</a>(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</pre> |
| <div class="block">Set the appender for which errors are handled. This method is |
| usually called when the error handler is configured.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>appender</code> - The appender</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.2</dd></dl> |
| </li> |
| </ul> |
| <a name="setBackupAppender(org.apache.log4j.Appender)"> |
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| <h4>setBackupAppender</h4> |
| <pre>void <a href="../../../../src-html/org/apache/log4j/spi/ErrorHandler.html#line.95">setBackupAppender</a>(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</pre> |
| <div class="block">Set the appender to fallback upon in case of failure.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>appender</code> - The backup appender</dd><dt><span class="strong">Since:</span></dt> |
| <dd>1.2</dd></dl> |
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