com.espertech.esper.collection.RollingTwoValueBuffer Maven / Gradle / Ivy
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Complex event processing and event series analysis component
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/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.collection;
public class RollingTwoValueBuffer {
private final A[] bufferA;
private final B[] bufferB;
private int nextFreeIndex;
public RollingTwoValueBuffer(A[] bufferA, B[] bufferB) {
if (bufferA.length != bufferB.length || bufferA.length == 0) {
throw new IllegalArgumentException("Minimum buffer size is 1, buffer sizes must be identical");
}
this.bufferA = bufferA;
this.bufferB = bufferB;
nextFreeIndex = 0;
}
public void add(A valueA, B valueB) {
bufferA[nextFreeIndex] = valueA;
bufferB[nextFreeIndex] = valueB;
nextFreeIndex++;
if (nextFreeIndex == bufferA.length) {
nextFreeIndex = 0;
}
}
public A[] getBufferA() {
return bufferA;
}
public B[] getBufferB() {
return bufferB;
}
}