Class WindowsStateUpdater
java.lang.Object
org.apache.storm.trident.windowing.WindowsStateUpdater
- All Implemented Interfaces:
Serializable,Operation,StateUpdater<WindowsState>
StateUpdater<WindowState> instance which removes successfully emitted triggers from store.- See Also:
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoidcleanup()When running in local mode, called when the local cluster is being shut down.voidprepare(Map<String, Object> conf, TridentOperationContext context) Called when the `Operation` is first initialized.voidupdateState(WindowsState state, List<TridentTuple> tuples, TridentCollector collector)
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Constructor Details
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WindowsStateUpdater
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Method Details
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updateState
- Specified by:
updateStatein interfaceStateUpdater<WindowsState>
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prepare
Description copied from interface:OperationCalled when the `Operation` is first initialized.- Specified by:
preparein interfaceOperation- Parameters:
conf- the Storm configuration mapcontext- the operation context which provides information such as the number of partitions in the stream, and the current partition index. It also provides methods for registering operation-specific metrics.- See Also:
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cleanup
public void cleanup()Description copied from interface:OperationWhen running in local mode, called when the local cluster is being shut down.
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