org.jpos.iso
Class ISOFieldPackager

java.lang.Object
  org.jpos.iso.ISOFieldPackager

Direct Known Subclasses:

IF_ECHAR, IF_NOP, IF_TBASE, IF_UNUSED, IFA_LLABINARY, IFA_LLBNUM, IFA_LLLABINARY, IFB_AMOUNT, IFB_LLHFBINARY, IFEB_LLLNUM, IFEB_LLNUM, IFEP_LLCHAR, IFIPM_LLLCHAR, ISOAmountFieldPackager, ISOBinaryFieldPackager, ISOBitMapPackager, ISOFilledStringFieldPackager, ISOMsgFieldPackager, ISOStringFieldPackager, ISOTagStringFieldPackager

public abstract class ISOFieldPackager
extends Object

base class for the various IF*.java Field Packagers Implements "FlyWeight" pattern

Version:

$Id$

Author:

apr@cs.com.uy

See Also:

IFA_AMOUNT, IFA_BINARY, IFA_BITMAP, IFA_FLLCHAR, IFA_FLLNUM, IFA_LLCHAR, IFA_LLLBINARY, IFA_LLLCHAR, IFA_LLLNUM, IFA_LLNUM, IFA_NUMERIC, IFB_AMOUNT, IFB_BINARY, IFB_BITMAP, IFB_LLBINARY, IFB_LLCHAR, IFB_LLHBINARY, IFB_LLHCHAR, IFB_LLHECHAR, IFB_LLHNUM, IFB_LLLBINARY, IFB_LLLCHAR, IFB_LLLNUM, IFB_LLNUM, IFB_NUMERIC, IF_CHAR, IF_ECHAR

Field Summary

protected boolean

pad

Constructor Summary

ISOFieldPackager()
Default Constructor

ISOFieldPackager(int len, String description)

Method Summary

ISOComponent	createComponent(int fieldNumber)
String	getDescription()
int	getLength()
abstract int	getMaxPackedLength()
abstract byte[]	pack(ISOComponent c)
void	pack(ISOComponent c, ObjectOutput out)
protected byte[]	readBytes(InputStream in, int l)
void	setDescription(String description)
void	setLength(int len)
void	setPad(boolean pad)
abstract int	unpack(ISOComponent c, byte[] b, int offset)
void	unpack(ISOComponent c, InputStream in)

Methods inherited from class java.lang.Object

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

Field Detail

pad

protected boolean pad

Constructor Detail

ISOFieldPackager

public ISOFieldPackager()

Default Constructor

ISOFieldPackager

public ISOFieldPackager(int len,
                        String description)

Parameters:

len - - field Len

description - - details

Method Detail

getDescription

public String getDescription()

setDescription

public void setDescription(String description)

getLength

public int getLength()

setLength

public void setLength(int len)

setPad

public void setPad(boolean pad)

getMaxPackedLength

public abstract int getMaxPackedLength()

createComponent

public ISOComponent createComponent(int fieldNumber)

pack

public abstract byte[] pack(ISOComponent c)
                     throws ISOException

Parameters:

c - - a component

Returns:

packed component

Throws:

ISOException

unpack

public abstract int unpack(ISOComponent c,
                           byte[] b,
                           int offset)
                    throws ISOException

Parameters:

c - - the Component to unpack

b - - binary image

offset - - starting offset within the binary image

Returns:

consumed bytes

Throws:

ISOException

unpack

public void unpack(ISOComponent c,
                   InputStream in)
            throws IOException,
                   ISOException

Parameters:

c - - the Component to unpack

in - - input stream

Throws:

ISOException

IOException

pack

public void pack(ISOComponent c,
                 ObjectOutput out)
          throws IOException,
                 ISOException

Parameters:

c - - the Component to unpack

out - - output stream

Throws:

ISOException

IOException

readBytes

protected byte[] readBytes(InputStream in,
                           int l)
                    throws IOException

Throws:

IOException