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ChangeEventDelegate Protocol Reference
ChangeEventDelegate
public protocol ChangeEventDelegate : AnyObjectDelegate which is used for subscribing to changes on a MongoCollection.watch() stream.
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The stream was opened.
Declaration
Swift
func changeStreamDidOpen(_ changeStream: ChangeStream)Parameters
changeStreamThe
ChangeStreamsubscribing to the stream changes. -
The stream has been closed.
Declaration
Swift
func changeStreamDidClose(with error: Error?)Parameters
errorIf an error occurred when closing the stream, an error will be passed.
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A error has occurred while streaming.
Declaration
Swift
func changeStreamDidReceive(error: Error)Parameters
errorThe streaming error.
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Invoked when a change event has been received.
Declaration
Swift
func changeStreamDidReceive(changeEvent: AnyBSON?)Parameters
changeEventThe change event in BSON format.