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Codebook enhancements
Codebook enhancements are specified by conversion:interpret, see that for an introduction and discussion.
See also conversion:Enhancement and Enhancement parameters.
The rest of this page discusses details not necessary for normal use.
edu.rpi.tw.data.csv.querylets.column.CodebookQuerylet is used to obtain any codes that should be applied according to the input parameters (it returns a hashmap of java:String to sesame:Value). When processing bindings, the CodebookQuerylet prints something similar to stderr (using the example at Enhancing a CSV that describes another CSV's headers):
CodebookQuerylet(1) .ID No.. -> ."id_no".
edu.rpi.tw.data.csv.impl.ValueHandlerFactory uses CodebookQuerylet to obtain the codes and pass them when instantiating the ValueHandler for a column.
edu.rpi.tw.data.csv.CSVtoRDF#visit passes the ValueHandler the value of the CSV cell (after an optional conversion:delimit_object)