+ This processor runs queries against a MongoDB instance or cluster and writes the results to a flowfile. It allows
+ input, but can run standalone as well.
+
+
Specifying the Query
+
+ The query can be specified in one of three ways:
+
+
+
Query configuration property.
+
Query Attribute configuration property.
+
FlowFile content.
+
+
+ If a value is specified in either of the configuration properties, it will not look in the FlowFile content for a
+ query.
+
+
Limiting/Shaping Results
+
+ The following options for limiting/shaping results are available:
+
+
+
Limit - limit the number of results. This should not be confused with the "batch size" option which is a
+ setting for the underlying MongoDB driver to tell it how many items to retrieve in each poll of the server.
+
Sort - sort the result set. Requires a JSON document like { "someDate": -1 }
+
Projection - control which fields to return. Exampe, which would remove _id: { "_id": 0 }
+
+
Misc Options
+
+ Results Per FlowFile, if set, creates a JSON array out of a batch of results and writes the result to the output.
+ Pretty Print, if enabled, will format the JSON data to be easy read by a human (ex. proper indentation of fields).
+