BaseAggregator (Storm 2.7.1 API)

java.lang.Object
- org.apache.storm.trident.operation.BaseOperation
- - org.apache.storm.trident.operation.BaseAggregator<T>

All Implemented Interfaces:

Serializable, Aggregator<T>, Operation

Direct Known Subclasses:

ComparisonAggregator, CountAsAggregator, FirstN.FirstNAgg, FirstN.FirstNSortedAgg
```
public abstract class BaseAggregator<T>
extends BaseOperation
implements Aggregator<T>
```
See Also:

Serialized Form

- Constructor Summary
  
  Constructors
  Constructor Description
  
  BaseAggregator()
- Method Summary
  - Methods inherited from class org.apache.storm.trident.operation.BaseOperation
    cleanup, prepare
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface org.apache.storm.trident.operation.Aggregator
    aggregate, complete, init
  - Methods inherited from interface org.apache.storm.trident.operation.Operation
    cleanup, prepare

- Constructor Detail
  - BaseAggregator
```
public BaseAggregator()
```