CODEWITHSUNDEEP
hadoopmapreducemarklogic
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RCS

Reputation: 1432

How to add metadata to the document using marklogic mapreduce connector api

I wanted to write the document to marklogic database using marklogic mapreduce api, lets say here is the example. I wanted to add metadata to the document which i am writing it back to the marklogic database in the reducer -

context.write(outputURI, result);

If adding metadata to the document with mapreduce api of marklogic is possible please let me know.

Upvotes: 2

Views: 108

Answers (2)

RCS
RCS

Reputation: 1432

Used property mapreduce.marklogic.output.content.collection with the configuration xml. Adding this property added inserted data to that collection.

Upvotes: 0

David Ennis -CleverLlamas.com
David Ennis -CleverLlamas.com

Reputation: 7770

For Metadata, I am assuming you are talking about the document properties fragment. For background on document properties, please see here: https://docs.marklogic.com/guide/app-dev/properties#id_19516

For use in MarkLogic mapreduce, please see here (the output classes): https://docs.marklogic.com/guide/mapreduce/output#id_76625

I believe you need to extend/modify your example to also write content to the properties fragment using the PropertyOutputFormat class.

One of the sample applications in the same documentation is an example of saving content in the properties fragment. If, however, you would like to fast-track yourself by looking at some source code: see some examples - including writing to a document property fragment, see here: https://gist.github.com/evanlenz/2484318 - specifically LinkCountInProperty.java

Upvotes: 1

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