NAME

Tree::Simple::Visitor::VariableDepthClone - A Visitor for cloning parts of Tree::Simple hierarchy

SYNOPSIS

  use Tree::Simple::Visitor::VariableDepthClone;

  # create an visitor
  my $visitor = Tree::Simple::Visitor::VariableDepthClone->new();
  
  $visitor->setCloneDepth(3);

  # pass our visitor to the tree
  $tree->accept($visitor);
  
  my $partial_tree = $visitor->getClone();

DESCRIPTION

This visitor will clone

METHODS

new

There are no arguments to the constructor the object will be in its default state. You can use the setNodeFilter method to customize its behavior.

includeTrunk ($boolean)

Based upon the value of $boolean, this will tell the visitor to include the trunk of the tree in the traversal as well. This basically means it will clone the root node as well.

setCloneDepth ($number)

setNodeFilter ($filter_function)

This method accepts a CODE reference as its $filter_function argument and throws an exception if it is not a code reference. This code reference is used to filter the tree nodes as they are cloned.

visit ($tree)

This is the method that is used by Tree::Simple's accept method. It can also be used on its own, it requires the $tree argument to be a Tree::Simple object (or derived from a Tree::Simple object), and will throw and exception otherwise.

getClone

This method returns the cloned partial tree.

BUGS

None that I am aware of. Of course, if you find a bug, let me know, and I will be sure to fix it.

CODE COVERAGE

See the CODE COVERAGE section in Tree::Simple::VisitorFactory for more inforamtion.

SEE ALSO

These Visitor classes are all subclasses of Tree::Simple::Visitor, which can be found in the Tree::Simple module, you should refer to that module for more information.

AUTHOR

stevan little, <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

Copyright 2005 by Infinity Interactive, Inc.

http://www.iinteractive.com

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.