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<title>6.29.7 Filter Objects
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<H2><A NAME=
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6.29.7 Filter Objects
</A>
<tt class=
"class">Filter
</tt>s can be used by
<tt class=
"class">Handler
</tt>s and
<tt class=
"class">Logger
</tt>s for
more sophisticated filtering than is provided by levels. The base filter
class only allows events which are below a certain point in the logger
hierarchy. For example, a filter initialized with
"A.B" will allow events
logged by loggers
"A.B",
"A.B.C",
"A.B.C.D",
"A.B.D" etc. but not
"A.BB",
"B.A.B" etc. If initialized with the empty string, all events are passed.
<dl><dt><table cellpadding=
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"0"><tr valign=
"baseline">
<td><nobr><b><span class=
"typelabel">class
</span> <tt id='l2h-
2559' xml:id='l2h-
2559'
class=
"class">Filter
</tt></b>(
</nobr></td>
<td><var></var><big>[
</big><var>name
</var><big>]
</big><var></var>)
</td></tr></table></dt>
Returns an instance of the
<tt class=
"class">Filter
</tt> class. If
<var>name
</var> is specified,
it names a logger which, together with its children, will have its events
allowed through the filter. If no name is specified, allows every event.
<dl><dt><table cellpadding=
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<td><nobr><b><tt id='l2h-
2560' xml:id='l2h-
2560'
class=
"method">filter
</tt></b>(
</nobr></td>
<td><var>record
</var>)
</td></tr></table></dt>
Is the specified record to be logged? Returns zero for no, nonzero for
yes. If deemed appropriate, the record may be modified in-place by this
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<span class=
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2.4.2, documentation updated on
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2005.
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