contains
abstract fun contains(id: String, executor: Executor, callback: CompletionCallback<Boolean>): AsyncOperationTask
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Checks whether this data provider contains a record with specified id.
Return
an object representing pending completion of the task.
Parameters
id
Record's id to check.
executor
Executor used for events dispatching. By default events are dispatched on the main thread.
callback
Callback to handle result.
open fun contains(id: String, callback: CompletionCallback<Boolean>): AsyncOperationTask
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Checks whether this data provider contains a record with specified id.
Return
an object representing pending completion of the task.
Parameters
id
Record's id to check.
callback
Callback to handle result, triggered on the main thread.