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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>log4cpp: log4cpp::Layout Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.2 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="namespaces.html">Namespace List</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="namespacemembers.html">Namespace Members</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a> | <a class="qindex" href="pages.html">Related Pages</a></div><div class="nav"><a class="el" href="namespacelog4cpp.html">log4cpp</a>::<a class="el" href="classlog4cpp_1_1Layout.html">Layout</a></div><h1>log4cpp::Layout Class Reference</h1>Extend this abstract class to create your own log layout format. <a href="#_details">More...</a><p><code>#include <<a class="el" href="Layout_8hh-source.html">Layout.hh</a>></code><p>Inheritance diagram for log4cpp::Layout:<p><center><img src="classlog4cpp_1_1Layout__inherit__graph.png" border="0" usemap="#log4cpp_1_1Layout__inherit__map" alt="Inheritance graph"></center><map name="log4cpp_1_1Layout__inherit__map"><area href="classlog4cpp_1_1BasicLayout.html" shape="rect" coords="8,83,154,107" alt=""><area href="classlog4cpp_1_1PatternLayout.html" shape="rect" coords="178,83,336,107" alt=""><area href="classlog4cpp_1_1SimpleLayout.html" shape="rect" coords="360,83,514,107" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classlog4cpp_1_1Layout-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cpp_1_1Layout.html#a0">~Layout</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor for <a class="el" href="classlog4cpp_1_1Layout.html">Layout</a>. <a href="#a0"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classlog4cpp_1_1Layout.html#a1">format</a> (const <a class="el" href="structlog4cpp_1_1LoggingEvent.html">LoggingEvent</a> &event)=0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Formats the <a class="el" href="structlog4cpp_1_1LoggingEvent.html">LoggingEvent</a> data to a string that appenders can log. <a href="#a1"></a><br></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>Extend this abstract class to create your own log layout format. <p><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="a0" doxytag="log4cpp::Layout::~Layout"></a><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">virtual log4cpp::Layout::~Layout </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [inline, virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Destructor for <a class="el" href="classlog4cpp_1_1Layout.html">Layout</a>. <p> </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="a1" doxytag="log4cpp::Layout::format"></a><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">virtual std::string log4cpp::Layout::format </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="structlog4cpp_1_1LoggingEvent.html">LoggingEvent</a> & </td> <td class="mdname1" valign="top" nowrap> <em>event</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [pure virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Formats the <a class="el" href="structlog4cpp_1_1LoggingEvent.html">LoggingEvent</a> data to a string that appenders can log. <p>Implement this method to create your own layout format. <dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>event</em> </td><td>The <a class="el" href="structlog4cpp_1_1LoggingEvent.html">LoggingEvent</a>. </td></tr> </table></dl><dl compact><dt><b>Returns:</b></dt><dd>an appendable string. </dd></dl><p>Implemented in <a class="el" href="classlog4cpp_1_1BasicLayout.html#a2">log4cpp::BasicLayout</a>, <a class="el" href="classlog4cpp_1_1PatternLayout.html#a2">log4cpp::PatternLayout</a>, and <a class="el" href="classlog4cpp_1_1SimpleLayout.html#a2">log4cpp::SimpleLayout</a>. </td> </tr></table><hr>The documentation for this class was generated from the following file:<ul><li><a class="el" href="Layout_8hh-source.html">Layout.hh</a></ul><hr size="1"><address style="align: right;"><small>Generated on Fri Jul 29 14:12:24 2005 for log4cpp by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.2 </small></address></body></html>⌨️ 快捷键说明
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