Package edu.caltech.nanodb.util

Class ArrayUtil

java.lang.Object

edu.caltech.nanodb.util.ArrayUtil

public class ArrayUtil
extends java.lang.Object

Some helpful utility operations for working with arrays.

Constructor Summary

Constructors

Constructor	Description
ArrayUtil()

Method Summary

Modifier and Type	Method	Description
static int	sizeOfDifferentRange(byte[] a, byte[] b, int index)	This function reports how many bytes are different between two arrays, starting at the specified index.
static int	sizeOfIdenticalRange(byte[] a, byte[] b, int index)	This function reports how many bytes are identical between two arrays, starting at the specified index.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayUtil

public ArrayUtil()

Method Detail

sizeOfIdenticalRange

public static int sizeOfIdenticalRange(byte[] a,
                                       byte[] b,
                                       int index)

This function reports how many bytes are identical between two arrays, starting at the specified index. The arrays are expected to be the same length.

Parameters:

a - the first array to examine

b - the second array to examine

index - the index to start the comparison at

Returns:

the number of bytes that are the same, starting from the specified index

sizeOfDifferentRange

public static int sizeOfDifferentRange(byte[] a,
                                       byte[] b,
                                       int index)

This function reports how many bytes are different between two arrays, starting at the specified index. The arrays are expected to be the same length.

Parameters:

a - the first array to examine

b - the second array to examine

index - the index to start the comparison at

Returns:

the number of bytes that are different, starting from the specified index