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.. wxPython Phoenix documentation
This file was generated by Phoenix's sphinx generator and associated
tools, do not edit by hand.
Copyright: (c) 2011-2020 by Total Control Software
License: wxWindows License
.. include:: headings.inc
.. currentmodule:: wx.lib.delayedresult
.. highlight:: python
.. _wx.lib.delayedresult.PreProcessChain:
==========================================================================================================================================
|phoenix_title| **wx.lib.delayedresult.PreProcessChain**
==========================================================================================================================================
Represent a 'delayed result pre-processing chain', a kind of Handler.
Useful when lower-level objects need to apply a sequence of transformations
to the delayed result before handing it over to a final handler.
This allows the starter of the worker function to not know
anything about the lower-level objects.
|
|class_hierarchy| Class Hierarchy
=================================
.. raw:: html
<div id="toggleBlock" onclick="return toggleVisibility(this)" class="closed" style="cursor:pointer;">
<img id="toggleBlock-trigger" src="_static/images/closed.png"/>
Inheritance diagram for class <strong>PreProcessChain</strong>:
</div>
<div id="toggleBlock-summary" style="display:block;"></div>
<div id="toggleBlock-content" style="display:none;">
<p class="graphviz">
<center><img src="_static/images/inheritance/wx.lib.delayedresult.PreProcessChain_inheritance.png" alt="Inheritance diagram of PreProcessChain" usemap="#dummy" class="inheritance"/></center>
<script type="text/javascript">toggleVisibilityOnLoad(document.getElementById('toggleBlock'))</script>
<map id="dummy" name="dummy"> <area shape="rect" id="node1" href="wx.lib.delayedresult.PreProcessChain.html" title="wx.lib.delayedresult.PreProcessChain" alt="" coords="5,5,272,35"/> </map>
</p>
</div>
|
|method_summary| Methods Summary
================================
================================================================================ ================================================================================
:meth:`~wx.lib.delayedresult.PreProcessChain.__init__` Wrap `handler(result, *args, **kwargs)` so that the result
:meth:`~wx.lib.delayedresult.PreProcessChain.addSub` Add a sub-callable, ie a `callable(result, *args, **kwargs)`
:meth:`~wx.lib.delayedresult.PreProcessChain.clone` Clone the chain. Shallow only. Useful when several threads
:meth:`~wx.lib.delayedresult.PreProcessChain.cloneAddSub` Convenience method that first clones self, then calls addSub()
:meth:`~wx.lib.delayedresult.PreProcessChain.count` How many pre-processors in the chain
================================================================================ ================================================================================
|
|api| Class API
===============
.. class:: PreProcessChain
Represent a 'delayed result pre-processing chain', a kind of Handler.
Useful when lower-level objects need to apply a sequence of transformations
to the delayed result before handing it over to a final handler.
This allows the starter of the worker function to not know
anything about the lower-level objects.
.. method:: __init__(self, handler, \*args, \*\*kwargs)
Wrap `handler(result, *args, **kwargs)` so that the result
it receives has been transformed by us.
.. method:: addSub(self, callable, \*args, \*\*kwargs)
Add a sub-callable, ie a `callable(result, *args, **kwargs)`
that returns a transformed result to the previously added
sub-callable (or the handler given at construction, if this is
the first call to addSub).
.. method:: clone(self)
Clone the chain. Shallow only. Useful when several threads
must be started but have different sub-callables.
.. method:: cloneAddSub(self, callable, \*args, \*\*kwargs)
Convenience method that first clones self, then calls addSub()
on that clone with given arguments.
.. method:: count(self)
How many pre-processors in the chain
|
