com.espertech.esper.epl.join.assemble

Class CartesianUtil

java.lang.Object

com.espertech.esper.epl.join.assemble.CartesianUtil

public class CartesianUtil
extends Object

Helper class to compute the cartesian product of the events from two streams.

Constructor Summary

Constructors

Constructor and Description
CartesianUtil()

Method Summary

Modifier and Type	Method and Description
protected static void	computeCartesian(List<EventBean[]> streamOne, int[] subStreamNumsOne, List<EventBean[]> streamTwo, int[] subStreamNumsTwo, List<EventBean[]> resultList) Form the 2-ary cartesian product between zero or more events from 2 streams.

Methods inherited from class java.lang.Object

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

Constructor Detail

CartesianUtil

public CartesianUtil()

Method Detail

computeCartesian

protected static void computeCartesian(List<EventBean[]> streamOne,
                                       int[] subStreamNumsOne,
                                       List<EventBean[]> streamTwo,
                                       int[] subStreamNumsTwo,
                                       List<EventBean[]> resultList)

Form the 2-ary cartesian product between zero or more events from 2 streams.

Parameters:

streamOne - is the events from stream one

subStreamNumsOne - is the list of substream numbers to stream one to include in the product

streamTwo - is the events from stream two

subStreamNumsTwo - is the list of substream numbers to stream two to include in the product

resultList - is where the result of the cartesian product is added to