Syntax

   FACTORY_DEF <ReaderKeyword> DuplicateRemoverFactory
   [FACTORY_NAME <factory name>]
   [INPUT FEATURE_TYPE <feature type>
   [<attribute name> <attribute value>]*
   [KEY_ATTRIBUTES [<attribute name>]+]
   [INPUT_IS_ORDERED (YES|NO)]
   [OUTPUT (UNIQUE|DUPLICATE)
      FEATURE_TYPE <feature type>
      [<attribute name> <attribute value>]*
      [<feature function>]*]*

Overview

   This factory outputs a single representative feature to the UNIQUE port for
   each unique attribute key.  All other features are output to the DUPLICATE port.

Clauses

   KEY_ATTRIBUTES [<attribute name>]+

      Specify one or more attributes to use for the key attribute. If more than one
      attribute is specified, the collective value of those attributes forms the key.

   INPUT_IS_ORDERED (YES|NO)

      If the input is ordered, only compare against is the previous key (should be
      RIPPING fast)

Output Tags

   The DuplicateRemoverFactory supports the following output tags.

   UNIQUE
      A feature for each unique key value found

   DUPLICATE
      All features that are not output via the UNIQUE port