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Aggregators.SimpleAggregator (Apache Crunch 0.9.0 API)

Class Aggregators.SimpleAggregator<T>

  extended by org.apache.crunch.fn.Aggregators.SimpleAggregator<T>
All Implemented Interfaces:
Serializable, Aggregator<T>
Enclosing class:

public abstract static class Aggregators.SimpleAggregator<T>
extends Object
implements Aggregator<T>

Base class for aggregators that do not require any initialization.

See Also:
Serialized Form

Constructor Summary
Method Summary
 void initialize(org.apache.hadoop.conf.Configuration conf)
          Perform any setup of this instance that is required prior to processing inputs.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.apache.crunch.Aggregator
reset, results, update

Constructor Detail


public Aggregators.SimpleAggregator()
Method Detail


public void initialize(org.apache.hadoop.conf.Configuration conf)
Description copied from interface: Aggregator
Perform any setup of this instance that is required prior to processing inputs.

Specified by:
initialize in interface Aggregator<T>
conf - Hadoop configuration

Copyright © 2014 The Apache Software Foundation. All Rights Reserved.