<p>The name of the file that stores current log messages. Usually it is a
computed value based on the name of the parent of this MBean. For example,
for a server log, it is <code><i>serverName</i>.log</code>.</p>
<p>
However, if the name of the parent cannot be obtained,
the file name is <code>weblogic.log</code>. If you
specify a relative pathname, it is interpreted as relative to the
server's root directory.</p>
<p>To include a time and date stamp in the file name when the log
file is rotated, add <code>java.text.SimpleDateFormat</code>
variables to the file name. Surround each variable with percentage
(<code>%</code>) characters.</p>
<p>For example, if the file name is defined to be
<code>myserver_%yyyy%_%MM%_%dd%_%hh%_%mm%.log</code>, the log file
will be named <code>myserver_yyyy_mm_dd_hh_mm.log</code>.</p>
<p>When the log file is rotated, the rotated file name contains the
date stamp. For example, if the log file is rotated on 2 April,
2003 at 10:05 AM, the log file that contains the old messages will
be named <code>myserver_2003_04_02_10_05.log</code>.</p>
<p>If you do not include a time and date stamp, the rotated log
files are numbered in order of creation. For example,
<code>myserver.log00007</code>.</p>
(Interface=weblogic.management.configuration.LogFileMBean Attribute=getFileName)