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Sink Connector Write Model Strategies
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Overview
You can set configuration properties to specify how the MongoDB Kafka sink connector writes data into MongoDB. The following sections describe the configuration properties that you can set to customize this behavior.
Write Model
Set the writemodel.strategy configuration property to specify how
the sink connector writes data when it receives a sink record.
You can set the value of writemodel.strategy to any of the
fully qualified class names of the write model strategies described in
the Strategies section of
this page. You can specify a strategy by setting the following
configuration:
writemodel.strategy=<a write model strategy>
Delete Write Model
Set the delete.writemodel.strategy configuration property to specify
how the sink connector writes data when it receives a tombstone
event. A tombstone event is a record that contains a key but no
value, which signifies a deleted record.
You can set the value of delete.writemodel.strategy to any of the
fully qualified class names of the write model strategies described in
the Strategies section of
this page. You can specify a strategy by setting the following
configuration:
delete.writemodel.strategy=<a write model strategy>
For a list of sink connector configuration settings organized by category, see the guide on Sink Connector Configuration Properties.
Strategies
Name | Description | |
|---|---|---|
DefaultWriteModelStrategy | Description: This strategy uses the ReplaceOneDefaultStrategy by
default, and the InsertOneDefaultStrategy if you set the
timeseries.timefield option.This is the default value value for the writemodel.strategy
configuration property. | |
InsertOneDefaultStrategy | Description: Insert each sink record into MongoDB as a document. To specify this strategy, set the configuration property to the
following class name: | |
ReplaceOneDefaultStrategy | Description: Replaces at most one document in MongoDB that matches a sink
record by the _id field. If no documents match, the
connector inserts the sink record as a new document.To specify this strategy, set the configuration property to the
following class name: | |
ReplaceOneBusinessKeyStrategy | Description: Replaces at most one document that matches a sink record by a
specified business key. If no documents match, the
connector inserts the sink record as a new document. To specify this strategy, set the configuration property to the
following class name: To see an example showing how to use this strategy, see our
guide on write model strategies. | |
DeleteOneDefaultStrategy | Description: Deletes at most one document that matches your sink connector's
key structure by the _id field only when the document
contains a null value structure.This is the default value for the
delete.writemodel.strategy configuration property.This strategy is set as the default value of the
writemodel.strategy property when you set
mongodb.delete.on.null.values=true.To specify this strategy, set the configuration property to the
following class name: | |
DeleteOneBusinessKeyStrategy | Description: Deletes at most one MongoDB document that matches a sink record by a business key. To specify this strategy, set the configuration property to the
following class name: To see an example showing how to use this strategy, see our
guide on write model strategies. | |
UpdateOneDefaultStrategy | Description: Updates at most one document in MongoDB that matches a sink
record by the _id field. If no documents match, the
connector inserts the sink record as a new document.To specify this strategy, set the configuration property to the
following class name: | |
UpdateOneTimestampsStrategy | Description: Add _insertedTS (inserted timestamp) and _modifiedTS (modified timestamp) fields into documents.To specify this strategy, set the configuration property to the
following class name: To see an example showing how to use this strategy, see our
guide on write model strategies. | |
UpdateOneBusinessKeyTimestampStrategy | Description: Add _insertedTS (inserted timestamp) and _modifiedTS
(modified timestamp) fields into documents that match a business
key.To specify this strategy, set the configuration property to the
following class name: |