org.apache.lucene.util
Class StringHelper

java.lang.Object
  org.apache.lucene.util.StringHelper

public abstract class StringHelper
extends Object

Methods for manipulating strings. $Id: StringHelper.java 641303 2008-03-26 13:39:25Z mikemccand $

Method Summary

static int	bytesDifference(byte[] bytes1, int len1, byte[] bytes2, int len2) Compares two byte[] arrays, element by element, and returns the number of elements common to both arrays.
static int	stringDifference(String s1, String s2) Compares two strings, character by character, and returns the first position where the two strings differ from one another.

Methods inherited from class java.lang.Object

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

Method Detail

bytesDifference

public static final int bytesDifference(byte[] bytes1,
                                        int len1,
                                        byte[] bytes2,
                                        int len2)

Compares two byte[] arrays, element by element, and returns the number of elements common to both arrays.

Parameters:

bytes1 - The first byte[] to compare

bytes2 - The second byte[] to compare

Returns:

The number of common elements.

stringDifference

public static final int stringDifference(String s1,
                                         String s2)

Compares two strings, character by character, and returns the first position where the two strings differ from one another.

Parameters:

s1 - The first string to compare

s2 - The second string to compare

Returns:

The first position where the two strings differ.