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NIFI-5410 Added additional documentation for GetMongo.

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Signed-off-by: Matthew Burgess <mattyb149@apache.org>

This closes #2880
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Mike Thomsen 2018-07-11 14:45:33 -04:00 committed by Matthew Burgess
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nifi-nar-bundles/nifi-mongodb-bundle/nifi-mongodb-processors/src/main/resources/docs/org.apache.nifi.processors.mongodb.GetMongo/additionalDetails.html Normal file
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<!DOCTYPE html>
<html lang="en">
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<head>
<meta charset="utf-8" />
<title>GetMongo</title>
<link rel="stylesheet" href="../../../../../css/component-usage.css" type="text/css" />
</head>
<body>
<!-- Processor Documentation ================================================== -->
<h2>Description:</h2>
<p>
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.
</p>
<h2>Specifying the Query</h2>
<p>
The query can be specified in one of three ways:
</p>
<ul>
<li>Query configuration property.</li>
<li>Query Attribute configuration property.</li>
<li>FlowFile content.</li>
</ul>
<p>
If a value is specified in either of the configuration properties, it will not look in the FlowFile content for a
query.
</p>
<h2>Limiting/Shaping Results</h2>
<p>
The following options for limiting/shaping results are available:
</p>
<ul>
<li>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.</li>
<li>Sort - sort the result set. Requires a JSON document like <em>{ "someDate": -1 }</em></li>
<li>Projection - control which fields to return. Exampe, which would remove <em>_id</em>: <em>{ "_id": 0 }</em></li>
</ul>
<h2>Misc Options</h2>
<p>
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).
</p>
</body>
</html>