Class BaseOperation

All Implemented Interfaces:
Serializable, Operation
Direct Known Subclasses:
BaseAggregator, BaseFilter, BaseFunction, BaseQueryFunction, BaseStateUpdater, ConsumerExecutor, FlatMapFunctionExecutor, MapFunctionExecutor

public class BaseOperation extends Object implements Operation
Convenience implementation of the Operation interface.

Provides no-op implementations of the `prepare()` and `cleanup()` methods.

See Also:
  • Constructor Details

    • BaseOperation

      public BaseOperation()
  • Method Details

    • prepare

      public void prepare(Map<String,Object> conf, TridentOperationContext context)
      No-op implementation.
      Specified by:
      prepare in interface Operation
      conf - the Storm configuration map
      context - 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:
    • cleanup

      public void cleanup()
      No-op implemnation.
      Specified by:
      cleanup in interface Operation