The concurrency property of the <mx:method> tag indicates how to handle multiple calls to the same method. By
default, making a new request to an operation or method that is already executing does not cancel the existing
request.
The following values of the
concurrency property are permitted:
•multipleExisting requests are not canceled and the developer is responsible for ensuring the consistency of
returned data by carefully managing the event stream. The default value is
multiple.
•singleMaking only one request at a time is allowed on the method; multiple requests generate ...
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