This package contains the implementation of a ComplexDataStore, Author note: though this "Complex" datastore has born to provide complex features out of a simple features data source, it may be better called a DerivativeDataStore or something like that, you'll see why later.
|Modifier and Type||Field and Description|
|Modifier and Type||Class and Description|
Determines the number of unique features in the collection on the basis of the specified feature attribute.
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