NAME

Padre::Cache - The Padre Temporary Data Cache API

DESCRIPTION

Padre::Cache implements a light memory only caching mechanism which is designed to support GUI objects that need to temporarily store state data.

By providing this caching in a neutral location that is not directly bound to the user interface objects, the cached data can survive destruction and recreation of those interface objects.

This is particularly valuable for situations such as a shift in the active language or the relocation of a tool that would result in interface objects being rebuilt.

Cache data is stored in a "Stash", which is a HASH reference containing arbitrary content, and is keyed off a project or document.

METHODS

stash

  my $stash = Padre::Cache->stash( 'Padre::Wx::MyClass' => $project );

The stash method fetches the HASH reference stash for a particular key pair, which consists of a GUI class name and a project or document.

The HASH reference returned can be used directly withouth the need to do any kind of get or set call to the stash.

Calling stash multiple times is guarenteed to fetch the same HASH reference.

release

    Padre::Cache->release( $project->root );

The release method is used to flush all of the stash data related to a particular project root or file name for all of the GUI elements that make use of stash objects from Padre::Cache.

Although this method is available for use, it should generally not be called directly. The built in DESTROY for both project and document objects will call this method for you, automatically cleaning up the stash data when the project or document itself is destroyed.

COPYRIGHT & LICENSE

Copyright 2008-2016 The Padre development team as listed in Padre.pm.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl 5 itself.

The full text of the license can be found in the LICENSE file included with this module.