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Pipeline::Store::ISA

NAME

Pipeline::Store::ISA − inheritance−based store for pipelines

SYNOPSIS

  use Pipeline::Store::ISA;
  my $store = Pipeline::Store::ISA−>new();
  $store−>set( $object );
  my $object = $store−>get( $class );

DESCRIPTION

"Pipeline::Store::ISA" is a slightly more complex implementation of a Pipeline store than "Pipeline::Store::Simple". It stores things as in a hashref indexed by classname, and also their inheritance tree. You can add an object to a store by calling the set method with an object, and you can get an object by calling the get method with the classname or parent classname of the object you wish to retrieve.

"Pipeline::Store::ISA" inherits from the "Pipeline::Store" class and includes its methods also.

METHODS

set( OBJECT )

The "set" method stores an object specified by OBJECT in itself. Replaces existing objects of the same type.

get( SCALAR )

The "get" method attempts to return an object of the class specified by SCALAR . If an object of that class does not exist in the store it returns undef instead. In the case that you request a super class of multiple objects an array reference will be returned containing all the objects that are blessed into child classes of SCALAR .

SEE ALSO

"Pipeline", "Pipeline::Store", "Pipeline::Store::Simple"

AUTHOR

James A. Duncan <jduncan AT fotango DOT com>

COPYRIGHT

Copyright 2002 Fotango Ltd. All Rights Reserved.

This software is distributed under the same terms as Perl itself.

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