net.sf.mmm.util.lang.base
Class CharSubSequence

java.lang.Object
  net.sf.mmm.util.lang.base.CoreCharSequence
      net.sf.mmm.util.lang.base.CharSubSequence

All Implemented Interfaces:

CharSequence

public class CharSubSequence
extends CoreCharSequence

This is an implementation of the CharSequence Interface that can be used to implement the method CharSequence.subSequence(int, int).
ATTENTION: This implementation assumes that the original char sequence has an immutable length (at least it should NOT shrink)!

Since:

1.0.2

Author:

Joerg Hohwiller (hohwille at users.sourceforge.net)

Field Summary

private int	length the length of the sub-sequence
private CharSequence	original the original sequence that is wrapped here
private int	start the start position of the sub-sequence

Constructor Summary

CharSubSequence(CharSequence originalSequence, int startPosition, int endPosition)
The constructor.

Method Summary

char	charAt(int index)
int	length()
CharSequence	subSequence(int startPosition, int endPosition)

Methods inherited from class net.sf.mmm.util.lang.base.CoreCharSequence

contentChanged, equals, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

original

private final CharSequence original

the original sequence that is wrapped here

start

private final int start

the start position of the sub-sequence

length

private final int length

the length of the sub-sequence

Constructor Detail

CharSubSequence

public CharSubSequence(CharSequence originalSequence,
                       int startPosition,
                       int endPosition)

The constructor.

Parameters:

originalSequence - is the underlying sequence.

startPosition - is the start-index in originalSequence.

endPosition - is the end-index in originalSequence.

Method Detail

subSequence

public CharSequence subSequence(int startPosition,
                                int endPosition)

length

public int length()

charAt

public char charAt(int index)