Author: anthony_pajot
Date: Tue Oct 23 21:21:42 2007
New Revision: 38
URL: http://svn.gna.org/viewcvs/pflex-framework?rev=38&view=rev
Log:
completely reviewed the plugin instancing process. Introduced PFlex_Instancer
to manage all this, gaining better flexibility and a better type safety.
Above all, permit to dynamically create instances of plugin, even if the
instances are not declared in the XML file.
So to come : the construction <dynamic-plugin name="..."
plugin-name="...."....>...</dynamic-plugin>, that will permit to specify
special kind of slots,especially when the number of instances is not known in
advance. for instance, one could have :
<plugin-init name="tree" instance-name="my tree">
<dynamic-plugin name="node type" plugin-name="n_way_nodes" n="32" />
.... (the datas to put in the tree, or the file from which to take the
datas, etc)
</plugin-init>
here, no one can know how many nodes it will take, it is the role of the tree
plugin to compute it. And if the tree is modified during runtime, the type of
node will always be the one specified in "node type". The "n" is an example of
parameters that are owned by the plugin "n_way_nodes" and that will be read by
the instancer and taken into account when the tree plugin will call for the
creation of a new node (the node plugin author will have to create a instancer
class inheriting PFlex_Instancer_Base<N_Way_Node_Plugin> and implement the
"configure_for_dynamic_instancing" function).
Added:
trunk/pflex_framework/include/plugins/pflex_instancer.hpp
Modified:
trunk/pflex_framework/include/plugins/plugin_itf.hpp
trunk/pflex_framework/include/plugins/plugin_repository.hpp
trunk/pflex_framework/src/plugins/plugin_repository.cpp
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