org.jpos.iso
Class LeftPadder

java.lang.Object
  org.jpos.iso.LeftPadder

All Implemented Interfaces:

Padder

public class LeftPadder
extends Object
implements Padder

Implements the Padder interface for padding strings and byte arrays on the left.

Version:

$Revision$ $Date$

Author:

joconnor

Field Summary

static LeftPadder

ZERO_PADDER A padder for padding zeros on the left.

Constructor Summary

LeftPadder(char pad)
Creates a Left Padder with a specific pad character.

Method Summary

String	pad(String data, int maxLength) Returns a padded string upto a maximum length.
String	unpad(String paddedData) (non-Javadoc)

Methods inherited from class java.lang.Object

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

Field Detail

ZERO_PADDER

public static final LeftPadder ZERO_PADDER

A padder for padding zeros on the left. This is very common in numeric fields.

Constructor Detail

LeftPadder

public LeftPadder(char pad)

Creates a Left Padder with a specific pad character.

Parameters:

pad - The padding character. For binary padders, the pad character is truncated to lower order byte.

Method Detail

pad

public String pad(String data,
                  int maxLength)
           throws ISOException

Description copied from interface: Padder

Returns a padded string upto a maximum length. If the data is longer than maxLength, then the data is truncated.

Specified by:

pad in interface Padder

Parameters:

data - The string to pad.

maxLength - The maximum length of the padded string.

Returns:

A padded string.

Throws:

ISOException - on error

See Also:

org.jpos.iso.Padder#pad(java.lang.String, int, char)

unpad

public String unpad(String paddedData)

(non-Javadoc)

Specified by:

unpad in interface Padder

Parameters:

paddedData - The string to unpad.

Returns:

The unpadded string.

See Also:

org.jpos.iso.Padder#unpad(java.lang.String, char)