Github user bhupeshchawda commented on a diff in the pull request:
https://github.com/apache/apex-malhar/pull/353#discussion_r72930458
--- Diff: docs/operators/enricher.md ---
@@ -0,0 +1,169 @@
+POJO Enricher
+=============
+
+## Operator Objective
+This operator receives an POJO ([Plain Old Java
Object](https://en.wikipedia.org/wiki/Plain_Old_Java_Object)) as an incoming
tuple and uses an external source to enrich the data in
+the incoming tuple and finally emits the enriched data as a new enriched
POJO.
+
+POJOEnricher supports enrichment from following external sources:
+
+1. **JSON File Based** - Reads the file in memory having content stored in
JSON format and use that to enrich the data. This can be done using FSLoader
implementation.
--- End diff --
Should this be small enough to fit in memory. If so, please mention.
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