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The Plugin Context is composed of two sub-components, namely the PreProcessPluginContext and the PostProcessPluginContext.
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PreProcessPluginContext
The PreProcessPluginContext is constructed each time rule execution is requested. The following data components are contained within the context:
allFactLists- This object is a Map of Class to List, or more specifically,
Map<Class<?>, List<?>>. The key of each map entry may be aClassof any given type, though Plugins should restrict the types to OpenCDS-internal components of the vMR. - Fact Lists are the facts that Drools uses for inferencing–these contain data from the vMR.
- This object is a Map of Class to List, or more specifically,
namedObjects- This object is a Map of String to Object, or more specifically,
Map<String, Object>. The key of each map entry may be any given String, which is typically used within Drools. - Named objects are currently (at the University of Utah) used by Drools rules for obtaining result fact lists.
- This object is a Map of String to Object, or more specifically,
globals- This object is a Map of String to Object, or more specifically,
Map<String, Object>. The key of each map entry may be any given String, which is typically used as a Global within the Drools context. Names are restricted to any value other than the following:evalTime,clientLanguage,clientTimeZoneOffset,focalPersonId,assertions, andnamedObjects.
- This object is a Map of String to Object, or more specifically,
cache- Cache is a cache of data within an OpencdsCache cache region, where plugins may store the data they support for future processing, as in the case of, e.g., SupportingData.
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PostProcessPluginContext
The PostProcessingPluginContext PostProcessPluginContext is constructed each time rule execution has completed. The following data components are contained within the context:
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