uCosminexus Stream Data Platform - Application Framework Application Development Guide

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isStarted() method

Format

boolean isStarted()

Explanation

In the data source mode, this method checks whether the input stream has started accepting new stream data.

Parameters

None.

Exceptions

The following table lists the exceptions.

Exception Generation condition
SDPClientCommunicationException A communication exception occurred during RMI connection.
SDPClientException
  • The input stream is already closed.
  • The stream is running in the server mode.
SDPClientQueryGroupHoldException The query group is held.
SDPClientQueryGroupNotExistException The query group was deleted.
SDPClientQueryGroupStateException The query group is not being executed.
SDPClientQueryGroupStopException The query group is stopped.

Return value

true

The input stream has started to accept stream data.

false

The input stream has not started to accept stream data.