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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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<dt>All Superinterfaces:</dt>
<dd><a href="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></dd>
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<dd><a href="../../../../org/apache/log4j/varia/FallbackErrorHandler.html" title="class in org.apache.log4j.varia">FallbackErrorHandler</a>, <a href="../../../../org/apache/log4j/helpers/OnlyOnceErrorHandler.html" title="class in org.apache.log4j.helpers">OnlyOnceErrorHandler</a></dd>
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<pre>public interface <span class="typeNameLabel">ErrorHandler</span>
extends <a href="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></pre>
<div class="block">Appenders may delegate their error handling to
<code>ErrorHandlers</code>.
<p>Error handling is a particularly tedious to get right because by
definition errors are hard to predict and to reproduce.
<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>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd>Ceki Gülcü</dd>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error-java.lang.String-">error</a></span>(java.lang.String message)</code>
<div class="block">This method is normally used to just print the error message
passed as a parameter.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error-java.lang.String-java.lang.Exception-int-">error</a></span>(java.lang.String message,
java.lang.Exception 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 event)</code></a> with the the event parameteter set to
<code>null</code>.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#error-java.lang.String-java.lang.Exception-int-org.apache.log4j.spi.LoggingEvent-">error</a></span>(java.lang.String message,
java.lang.Exception 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>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setAppender-org.apache.log4j.Appender-">setAppender</a></span>(<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>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setBackupAppender-org.apache.log4j.Appender-">setBackupAppender</a></span>(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</code>
<div class="block">Set the appender to falkback upon in case of failure.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/log4j/spi/ErrorHandler.html#setLogger-org.apache.log4j.Logger-">setLogger</a></span>(<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>
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<h3>Methods inherited from interface org.apache.log4j.spi.<a href="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></h3>
<code><a href="../../../../org/apache/log4j/spi/OptionHandler.html#activateOptions--">activateOptions</a></code></li>
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<h4>setLogger</h4>
<pre>void setLogger(<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="paramLabel">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="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
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<h4>error</h4>
<pre>void error(java.lang.String message,
java.lang.Exception 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 event)</code></a> with the the event parameteter set to
<code>null</code>.</div>
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<h4>error</h4>
<pre>void error(java.lang.String message)</pre>
<div class="block">This method is normally used to just print the error message
passed as a parameter.</div>
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<h4>error</h4>
<pre>void error(java.lang.String message,
java.lang.Exception 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="paramLabel">Parameters:</span></dt>
<dd><code>message</code> - The message assoicated with the error.</dd>
<dd><code>e</code> - The Exption that was thrown when the error occured.</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="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
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<h4>setAppender</h4>
<pre>void setAppender(<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="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
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<h4>setBackupAppender</h4>
<pre>void setBackupAppender(<a href="../../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</a> appender)</pre>
<div class="block">Set the appender to falkback upon in case of failure.</div>
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<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
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