org.limewire.collection
Class NumericBuffer<T extends Number>

java.lang.Object
  org.limewire.collection.Buffer<T>
      org.limewire.collection.NumericBuffer<T>

All Implemented Interfaces:

Cloneable, Iterable<T>

public class NumericBuffer<T extends Number>
extends Buffer<T>

Provides a circular buffer for Numbers. Includes a summation and average (arithmetic mean) of the elements in the buffer.

    NumericBuffer<Float> nb = new NumericBuffer<Float>(10);

    nb.add(1f);
    nb.add(2f);
    nb.add(3f);
    nb.add(4f);
    System.out.println(nb);
    System.out.println("Arithmetic mean (average) is: " + nb.average());
    System.out.println("Sum is: " + nb.sum());  

    Output:
        [4.0, 3.0, 2.0, 1.0]
        Arithmetic mean (average) is: 2.5
        Sum is: 10.0

Field Summary

Fields inherited from class org.limewire.collection.Buffer

buf

Constructor Summary

NumericBuffer(Buffer<? extends T> other)

NumericBuffer(int size)

Method Summary

Number	average()
protected T[]	createArray(int size)
Number	sum()

Methods inherited from class org.limewire.collection.Buffer

add, addFirst, addLast, clear, clone, contains, first, get, getCapacity, getSize, initialize, isEmpty, isFull, iterator, last, remove, remove, removeAll, removeFirst, removeLast, set, size, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericBuffer

public NumericBuffer(int size)

NumericBuffer

public NumericBuffer(Buffer<? extends T> other)

Method Detail

createArray

protected T[] createArray(int size)

Overrides:

createArray in class Buffer<T extends Number>

average

public Number average()

Returns:

the average (arithmetic mean) of the elements in this buffer with the best accuracy possible - double if the elements are float or double and long otherwise.

sum

public Number sum()

Returns:

the sum of the elements in this buffer with the best accuracy possible - double if the elements are float or double and long otherwise.