1POE::Wheel::Null(3) User Contributed Perl Documentation POE::Wheel::Null(3)
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6 POE::Wheel::Null - POE Wheel that does put()s data nowhere, and sends
7 nothing.
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10 As a primary use whenever you would normally...
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12 delete $heap->{wheel};
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14 or something equivalent, instead do...
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16 $heap->{wheel} = POE::Wheel::Null->new();
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18 to prevent calls to $heap->{wheel} from causing runtime errors in perl.
19 This seems to be a Good Idea (tm) when working with long running
20 programs in the traditional POE way.
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23 POE::Wheel::Null creates a wheel which doesn't do anything upon put(),
24 and doesn't send any events to the current session.
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27 new
28 The new() method creates a new null wheel.
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30 ID
31 Returns the wheel unique ID
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33 put
34 Does nothing (intended)
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37 None
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40 POE::Wheel, POE
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43 Roughly zero.
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46 Jonathan Steinert hachi@cpan.org
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49 Copyright 2004 Jonathan Steinert (hachi@cpan.org)
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51 This program is free software; you can redistribute it and/or modify it
52 under the same terms as Perl itself.
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56perl v5.28.1 2004-11-25 POE::Wheel::Null(3)