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+<!DOCTYPE html>
+<html><head>
+ <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+ <link rel="stylesheet" type="text/css" href="../logi/reset.css" />
+ <link rel="stylesheet" type="text/css" href="features.css" />
+ <link rel="shortcut icon" href="../favicon.ico" type="image/x-icon" />
+ <meta name="description" content="Spice up your java" />
+ <title>@Log</title>
+</head><body><div id="pepper">
+ <div class="minimumHeight"></div>
+ <div class="meat">
+ <div class="header"><a href="../index.html">Project Lombok</a></div>
+ <h1>@Log</h1>
+ <div class="byline">Captain's Log, stardate 24435.7: &quot;What was that line again?&quot;</div>
+ <div class="overview">
+ <h3>Overview</h3>
+ <p>
+ You can annotate any field with <code>@Log</code> to let lombok generate a logger field automatically.<br />
+ The logger is named <code>log</code> and field's type depends on which logger you have selected.
+ </p><p>
+ There are four <code>@Log</code> choices available:<br />
+ <dl>
+ <dt><code>@lombok.extern.apachecommons.Log</code></dt>
+ <dd>Creates <code><span class="keyword">private&nbsp;static&nbsp;final&nbsp;</span><a href="http://commons.apache.org/logging/apidocs/org/apache/commons/logging/Log.html">org.apache.commons.logging.Log</a>&nbsp;<span class="staticfield">log</span>&nbsp;=&nbsp;<a href="http://commons.apache.org/logging/apidocs/org/apache/commons/logging/LogFactory.html#getLog(java.lang.Class)">org.apache.commons.logging.LogFactory.getLog</a>(LogExample.<span class="keyword">class</span>);</code></dd>
+ <dt><code>@lombok.extern.jul.Log</code></dt>
+ <dd>Creates <code><span class="keyword">private&nbsp;static&nbsp;final&nbsp;</span><a href="http://download.oracle.com/javase/6/docs/api/java/util/logging/Logger.html">java.util.logging.Logger</a>&nbsp;<span class="staticfield">log</span>&nbsp;=&nbsp;<a href="http://download.oracle.com/javase/6/docs/api/java/util/logging/Logger.html#getLogger(java.lang.String)">java.util.logging.Logger.getLogger</a>(LogExample.<span class="keyword">class</span>.getName());</code></dd>
+ <dt><code>@lombok.extern.log4j.Log</code></dt>
+ <dd>Creates <code><span class="keyword">private&nbsp;static&nbsp;final&nbsp;</span><a href="http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Logger.html">org.apache.log4j.Logger</a>&nbsp;<span class="staticfield">log</span>&nbsp;=&nbsp;<a href="http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Logger.html#getLogger(java.lang.Class)">org.apache.log4j.Logger.getLogger</a>(LogExample.<span class="keyword">class</span>);</code></dd>
+ <dt><code>@lombok.extern.slf4j.Log</code></dt>
+ <dd>Creates <code><span class="keyword">private&nbsp;static&nbsp;final&nbsp;</span><a href="http://www.slf4j.org/api/org/slf4j/Logger.html">org.slf4j.Logger</a>&nbsp;<span class="staticfield">log</span>&nbsp;=&nbsp;<a href="http://www.slf4j.org/apidocs/org/slf4j/LoggerFactory.html#getLogger(java.lang.Class)">org.slf4j.LoggerFactory.getLogger</a>(LogExample.<span class="keyword">class</span>);</code></dd>
+ </dl>
+ </p>
+ <p>
+ All <code>@Log</code> annotations can take an optional parameter of type <code>Class</code>. If such a parameter is specified, that class will be used as the parameter for the logger factory call.
+ </p>
+ </div>
+ <div class="snippets">
+ <div class="pre">
+ <h3>With Lombok</h3>
+ <div class="snippet">@HTML_PRE@</div>
+ </div>
+ <div class="sep"></div>
+ <div class="post">
+ <h3>Vanilla Java</h3>
+ <div class="snippet">@HTML_POST@</div>
+ </div>
+ </div>
+ <div style="clear: left;"></div>
+ <div class="overview">
+ <h3>Small print</h3><div class="smallprint">
+ <p>
+ If a field called <code>log</code> already exists, a warning will be emitted and no code will be generated.
+ </p>
+ </div>
+ </div>
+ <div class="footer">
+ <a href="index.html">Back to features</a> | <a href="SneakyThrows.html">Previous feature (@SneakyThrows)</a> | <span class="disabled">Next feature</span><br />
+ <a href="../credits.html" class="creditsLink">credits</a> | <span class="copyright">Copyright &copy; 2009-2010 Reinier Zwitserloot, Roel Spilker and Robbert Jan Grootjans, licensed under the <a href="http://www.opensource.org/licenses/mit-license.php">MIT license</a>.</span>
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