> const<code> [inline, virtual]</code></td>
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<p>
The <a class="el" href="classlog4cxx_1_1_pattern_layout.html">PatternLayout</a> does not handle the throwable contained within <a class="el" href="classlog4cxx_1_1spi_1_1_logging_event.html">LoggingEvents</a>. 
<p>
Thus, it returns <code>true</code>. 
<p>
Implements <a class="el" href="classlog4cxx_1_1_layo