| Apply the finder algorithm to attempt to locate a source of
digester rules for the specified plugin class.
This method is invoked when a plugin is declared by the user, either
via an explicit use of PluginDeclarationRule, or implicitly via an
"inline declaration" where the declaration and use are simultaneous.
If dynamic rules for the specified plugin class are located, then
the RuleFinder will return a RuleLoader object encapsulating those
rules, and this object will be invoked each time the user actually
requests an instance of the declared plugin class, to load the
custom rules associated with that plugin instance.
If no dynamic rules can be found, null is returned. This is not an
error; merely an indication that this particular algorithm found
no matches.
The properties object holds any xml attributes the user may have
specified on the plugin declaration in order to indicate how to locate
the plugin rules.
throws:
PluginConfigurationException - if the algorithm finds a sourceof rules, but there is something invalid about that source. | 