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

java.lang.Object
  com.espertech.esper.epl.join.assemble.CartesianUtil

public class CartesianUtil
extends java.lang.Object

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

Constructor Summary

CartesianUtil()

Method Summary

protected static void

computeCartesian(java.util.List<EventBean[]> streamOne, int[] subStreamNumsOne, java.util.List<EventBean[]> streamTwo, int[] subStreamNumsTwo, java.util.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(java.util.List<EventBean[]> streamOne,
                                       int[] subStreamNumsOne,
                                       java.util.List<EventBean[]> streamTwo,
                                       int[] subStreamNumsTwo,
                                       java.util.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