org.shapelogic.mathematics
Class SumAccumulator

java.lang.Object
  org.shapelogic.calculation.BaseAccumulator<java.lang.Integer,java.lang.Long>
      org.shapelogic.mathematics.SumAccumulator

All Implemented Interfaces:

java.util.Iterator<java.lang.Long>, Accumulator<java.lang.Integer,java.lang.Long>, CalcValue<java.lang.Long>, LazyCalc<java.lang.Long>

public class SumAccumulator
extends BaseAccumulator<java.lang.Integer,java.lang.Long>

AddAccumulator is an accumulator that add integers. Since this is used so much.

Author:

Sami Badawi

Field Summary

Fields inherited from class org.shapelogic.calculation.BaseAccumulator

_dirty, _input, _inputElement, _previousInputElement, _previousValue, _value

Constructor Summary

SumAccumulator(java.util.Iterator<java.lang.Integer> input)

Method Summary

java.lang.Long

accumulate(java.lang.Integer element, java.lang.Long out) return element + out;

Methods inherited from class org.shapelogic.calculation.BaseAccumulator

getInput, getPreviousValue, getValue, hasNext, isDirty, next, remove, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

SumAccumulator

public SumAccumulator(java.util.Iterator<java.lang.Integer> input)

Method Detail

accumulate

public java.lang.Long accumulate(java.lang.Integer element,
                                 java.lang.Long out)

Description copied from interface: Accumulator

return element + out;

Specified by:

accumulate in interface Accumulator<java.lang.Integer,java.lang.Long>

Specified by:

accumulate in class BaseAccumulator<java.lang.Integer,java.lang.Long>