Package com.northconcepts.datapipeline.transform.lookup
package com.northconcepts.datapipeline.transform.lookup
Enrich data by with data from another source.
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ClassesClassDescriptionAn in-memory
Lookupfilled withaddcalls, where each key maps to one or more result records.ALookupthat lazily caches the results of successful lookups performed by another instance.ALookupthat loads all records from aDataReaderinto memory, keyed by the parameter fields; the reader is read and closed in the constructor.ALookupthat runs a SQL query for each lookup, binding the key values to its parameters in order.Searches for data in another source to merge with each record passing through this lookup's transformer -- the streaming version of a join.ATransformerthat merges into each record the fields of the record aLookupreturns for the values of the key fields.Abstract super-class for obtaining records from anotherLookup, possibly transforming them along the way.An in-memory lookup implementation that performs joins using aRecordList.