Custom Processor

A processor can either copy the complete source into a temporary global for NLP processing, or it can store a reference to the source in a temporary global. These temporary globals are used by the NLP engine to index the text and store the results in NLP globals.

If a Lister does not have a corresponding processor, the %iKnow.Source.Temp.ProcessorOpens in a new tab is the default processor. It copies the complete text of each source into a temporary global. The other supplied processors store a reference to the source in a temporary global. You can use ..StoreTemp to specify copying the source, or ..StoreRef to specify storing a reference to the source.

Metadata

While listing sources, the Lister is capable of extracting metadata that should be added to the sources. In order to let the system know which metadata the Lister will provide, you can call the function ..RegisterMetadataKeys(metaFieldNames). The metaFieldNames parameter is a %List containing the keys for the metadata key-value pairs. After that you can provide the metadata values by using the function ..SetMetadataValues(ref, metaValues). the metaValues parameter is a %List containing the values for the metadata key-value pairs. They should appear in the same order as the keys are listed.

After establishing the metadata in the Lister, you can access this metadata in your processor by implement the GetMetadataKeys()Opens in a new tab method. This method should return a %List of keys from the metadata key-value pairs. In the FetchSource() method the processor can then set the appropriate values for calling ..SetCurrentMetadataValues(values), where values is a %List of the values of the metadata key-value pairs, in the same order as the keys were reported.

Custom Converter

Custom Lister