com.espertech.esper.epl.agg.aggregator
Class AggregatorCountEverFilter

java.lang.Object
  extended by com.espertech.esper.epl.agg.aggregator.AggregatorCountEver
      extended by com.espertech.esper.epl.agg.aggregator.AggregatorCountEverFilter
All Implemented Interfaces:
AggregationMethod

public class AggregatorCountEverFilter
extends AggregatorCountEver

Aggregator for the count-ever value.


Field Summary
 
Fields inherited from class com.espertech.esper.epl.agg.aggregator.AggregatorCountEver
count
 
Constructor Summary
AggregatorCountEverFilter()
           
 
Method Summary
 void enter(java.lang.Object parameters)
          Apply the value as entering aggregation (entering window).
 
Methods inherited from class com.espertech.esper.epl.agg.aggregator.AggregatorCountEver
clear, getCount, getValue, getValueType, leave, setCount
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

AggregatorCountEverFilter

public AggregatorCountEverFilter()
Method Detail

enter

public void enter(java.lang.Object parameters)
Description copied from interface: AggregationMethod
Apply the value as entering aggregation (entering window).

The value can be null since 'null' values may be counted as unique separate values.

Specified by:
enter in interface AggregationMethod
Overrides:
enter in class AggregatorCountEver
Parameters:
parameters - to add to aggregate

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