org.jpos.iso
Class ISOField

java.lang.Object
  org.jpos.iso.ISOComponent
      org.jpos.iso.ISOField

All Implemented Interfaces:

Externalizable, Serializable, Cloneable

Direct Known Subclasses:

ISOVField

public class ISOField
extends ISOComponent
implements Cloneable, Externalizable

implements Leaf for standard fields

Version:

$Id$

Author:

apr@cs.com.uy

See Also:

ISOComponent, Serialized Form

Field Summary

protected int	fieldNumber
protected String	value

Constructor Summary

ISOField()
No args constructor (required by Externalizable support on ISOMsg)

ISOField(int n)

ISOField(int n, String v)

Method Summary

void	dump(PrintStream p, String indent) dump this field to PrintStream.
byte[]	getBytes() get Value as bytes (when possible)
Object	getKey() valid on Leafs only.
Object	getValue() valid on Leafs only.
byte[]	pack() not available on Leaf - always throw ISOException
void	readExternal(ObjectInput in)
void	setFieldNumber(int fieldNumber) changes this Component field number Use with care, this method does not change any reference held by a Composite.
void	setValue(Object obj)
int	unpack(byte[] b) not available on Leaf - always throw ISOException
void	unpack(InputStream in) not available on Leaf - always throw ISOException
void	writeExternal(ObjectOutput out)

Methods inherited from class org.jpos.iso.ISOComponent

getChildren, getComposite, getMaxField, pack, set, unset

Methods inherited from class java.lang.Object

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

Field Detail

fieldNumber

protected int fieldNumber

value

protected String value

Constructor Detail

ISOField

public ISOField()

No args constructor (required by Externalizable support on ISOMsg)

ISOField

public ISOField(int n)

Parameters:

n - - the FieldNumber

ISOField

public ISOField(int n,
                String v)

Parameters:

n - - fieldNumber

v - - fieldValue

Method Detail

pack

public byte[] pack()
            throws ISOException

not available on Leaf - always throw ISOException

Specified by:

pack in class ISOComponent

Throws:

ISOException

unpack

public int unpack(byte[] b)
           throws ISOException

not available on Leaf - always throw ISOException

Specified by:

unpack in class ISOComponent

Throws:

ISOException

unpack

public void unpack(InputStream in)
            throws ISOException

not available on Leaf - always throw ISOException

Specified by:

unpack in class ISOComponent

Throws:

ISOException

getKey

public Object getKey()

Description copied from class: ISOComponent

valid on Leafs only. The value returned is used by ISOMsg as a key to this field.

Overrides:

getKey in class ISOComponent

Returns:

Object representing this field number

getValue

public Object getValue()

Description copied from class: ISOComponent

valid on Leafs only.

Overrides:

getValue in class ISOComponent

Returns:

Object representing this field value

setValue

public void setValue(Object obj)
              throws ISOException

Specified by:

setValue in class ISOComponent

Parameters:

obj - - Object representing this field value

Throws:

ISOException

getBytes

public byte[] getBytes()

Description copied from class: ISOComponent

get Value as bytes (when possible)

Overrides:

getBytes in class ISOComponent

Returns:

byte[] representing this field

dump

public void dump(PrintStream p,
                 String indent)

dump this field to PrintStream. The output is sorta XML, intended to be easily parsed.

Specified by:

dump in class ISOComponent

Parameters:

p - - print stream

indent - - optional indent string

setFieldNumber

public void setFieldNumber(int fieldNumber)

changes this Component field number
Use with care, this method does not change any reference held by a Composite.

Specified by:

setFieldNumber in class ISOComponent

Parameters:

fieldNumber - new field number

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException