Class BaseOperation
java.lang.Object
org.apache.storm.trident.operation.BaseOperation
- All Implemented Interfaces:
Serializable,Operation
- Direct Known Subclasses:
BaseAggregator,BaseFilter,BaseFunction,BaseQueryFunction,BaseStateUpdater,ConsumerExecutor,FlatMapFunctionExecutor,MapFunctionExecutor
Convenience implementation of the
Operation interface.
Provides no-op implementations of the `prepare()` and `cleanup()` methods.
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Constructor Summary
Constructors -
Method Summary
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Constructor Details
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BaseOperation
public BaseOperation()
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Method Details
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prepare
No-op implementation.- 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()No-op implemnation.
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