Tree::Binary::VisitorFactory - A factory object for dispensing Visitor objects
use Tree::Binary::VisitorFactory; my $tf = Tree::Binary::VisitorFactory->new(); my $visitor = $tf->get("InOrderTraveral"); # or call it as a class method my $visitor = Tree::Binary::VisitorFactory->getVisitor("PostOrderTraveral");
This object is really just a factory for dispensing Tree::Binary::Visitor::* objects. It is not required to use this package in order to use all the Visitors, it is just a somewhat convienient way to avoid having to type thier long class names.
I considered making this a Singleton, but I did not because I thought that some people might not want that. I know that I am very picky about using Singletons, especially in multiprocess environments like mod_perl, so I implemented the smallest instance I knew how to, and made sure all other methods could be called as class methods too.
Returns an minimal instance of this object, basically just a reference back to the package (literally, see the source if you care).
- get ($visitor_type)
Attempts to load the
$visitor_typeand returns an instance of it if successfull. If no
$visitor_typeis specified an exception is thrown, if
$visitor_typefails to load, and exception is thrown.
- getVisitor ($visitor_type)
This is an alias of
None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.
See the CODE COVERAGE section of Tree::Binary for details.
stevan little, <firstname.lastname@example.org>
Copyright 2004, 2005 by Infinity Interactive, Inc.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.