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uCosminexus Stream Data Platform - Application Framework Application Development Guide
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Format
int getFreeQueueSize()
Explanation
Acquires the amount of free space in the output stream queue.
The free space in the output stream queue is determined by subtracting the space being used from the value specified in the engine.maxQueueSize parameter of system_config.properties.
Parameters
None.
Exceptions
The following table shows the exceptions and the conditions for their generation.
| Exception | Generation condition |
|---|---|
| SDPClientCommunicationException | A communication exception occurred during RMI connection. |
| SDPClientException | The output stream is already closed. |
| SDPClientQueryGroupHoldException | The query group is held. (Detailed exception of SDPClientQueryGroupStateException) |
| SDPClientQueryGroupNotExistException | The query group was deleted. |
| SDPClientQueryGroupStateException | The query group is not being executed. |
Return value
Amount of free space in the output stream queue (int)
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