Package tools.refinery.interpreter.matchers.aggregators

Class count

java.lang.Object

tools.refinery.interpreter.matchers.aggregators.count

All Implemented Interfaces:

IAggregatorFactory

public final class count
extends Object
implements IAggregatorFactory

An aggregator to count the number of matches a pattern has. The return of the aggregator is an non-negative integer number.

Since:

1.4

Constructor Summary

Constructors

Constructor	Description
count()

Method Summary

Modifier and Type	Method	Description
BoundAggregator	getAggregatorLogic(Class<?> domainClass)	Given type parameters selected from AggregatorType annotations, returns a run-time aggregator operator that is bound to the actual types.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

count

public count()

Method Details

getAggregatorLogic

public BoundAggregator getAggregatorLogic(Class<?> domainClass)

Description copied from interface: IAggregatorFactory

Given type parameters selected from AggregatorType annotations, returns a run-time aggregator operator that is bound to the actual types.

Specified by:

getAggregatorLogic in interface IAggregatorFactory

Parameters:

domainClass - Java type of the values that are being aggregated

Returns:

the actual run-time aggregator logic, with type bindings