case class MergeOptions(wrapped: com.mongodb.client.model.MergeOptions = new JMergeOptions()) extends Product with Serializable
Options to control the behavior of the $merge aggregation stage
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- new MergeOptions(wrapped: com.mongodb.client.model.MergeOptions = new JMergeOptions())
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- def uniqueIdentifier(uniqueIdentifiers: String*): MergeOptions
Sets the field that act as a unique identifier for a document.
Sets the field that act as a unique identifier for a document. The identifier determine if a results document matches an already existing document in the output collection.
- uniqueIdentifiers
the unique identifier(s)
- returns
this
- def variables(variables: Variable[_]*): MergeOptions
Sets the variables accessible for use in the whenMatched pipeline.
Sets the variables accessible for use in the whenMatched pipeline.
- variables
the variables
- returns
this
- final def wait(): Unit
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- def whenMatched(whenMatched: WhenMatched): MergeOptions
Sets the behavior of $merge if a result document and an existing document in the collection have the same value for the specified on field(s).
Sets the behavior of $merge if a result document and an existing document in the collection have the same value for the specified on field(s).
- whenMatched
when matched
- returns
this
- def whenMatchedPipeline(whenMatchedPipeline: Bson*): MergeOptions
Sets aggregation pipeline to update the document in the collection.
Sets aggregation pipeline to update the document in the collection.
- whenMatchedPipeline
when matched pipeline
- returns
this
- See also
WhenMatched#PIPELINE
- def whenNotMatched(whenNotMatched: WhenNotMatched): MergeOptions
Sets the behavior of $merge if a result document does not match an existing document in the out collection.
Sets the behavior of $merge if a result document does not match an existing document in the out collection.
- whenNotMatched
when not matched
- returns
this
- val wrapped: com.mongodb.client.model.MergeOptions
This is the documentation for the MongoDB Scala driver.
Driver structure
The mongodb scala driver.
To get started you need a MongoClient instance, either from a connection string or via a org.mongodb.scala.MongoClientSettings.
Notable packages include: