uk.co.weft.iso8211
Class Field

java.lang.Object
  |
  +--uk.co.weft.iso8211.Field

Direct Known Subclasses:

DDRField

public class Field

extends java.lang.Object

A field (not a DDR field, see separate class DDRField) in an ISO8211 record.

Version:

$Revision: 1.6 $ This revision: $Author: simon $

  $Log: Field.java,v $
  Revision 1.6  2002/11/04 14:11:15  simon
  Now generating (some) XML. Tidy up for first public release.

  Revision 1.5  2002/11/02 00:09:16  simon
  Promising, but still not there. Problems include not correctly finding
  the start of the next record.

  Revision 1.4  2002/11/01 14:46:09  simon
  Much better! Now parsing most fields reasonably well.

  Revision 1.3  2002/10/31 23:04:28  simon
  Not in all truth a lot of progress. I'm parsing the DDR OK but when I come
  to real records I'm still not parsing them, and the reason seems to be that
  I'm not associating the right formats with the right field types. I'm still
  finding this very opaque.

  Revision 1.2  2002/10/31 19:25:22  simon


  This package of work is to take a parser which correctly recognised
  all the record and field boundaries, and try to make it read actual
  data. The DDR is now reading correctly (I believe) but the data are
  not being read, primarily because (I think) I'm not correctly making
  use of the data I read from the DDR.

  Revision 1.1.1.1  2002/10/29 11:27:33  simon
  More or less parses


  

Author:

Simon Brooke (simon@jasmine.org.uk)

Field Summary

protected int	index which field I am within my record
protected Record	record the record of which this field forms part
protected java.util.Vector	subfields my subfields
protected java.lang.String	tag my field name

Constructor Summary

protected	Field() An empty constructer so that DDRField can do it's own thing.
	Field(ISO8211InputStream in, Record record, int index, DDR ddr, boolean debug) create and return a Field object by reading from the current point in this stream

Method Summary

protected org.w3c.dom.Element

generate(org.w3c.dom.Document doc, uk.co.weft.dbutil.Context context) Generate XML element representing this field.

Methods inherited from class java.lang.Object

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

Field Detail

record

protected Record record

the record of which this field forms part

index

protected int index

which field I am within my record

tag

protected java.lang.String tag

my field name

subfields

protected java.util.Vector subfields

my subfields

Constructor Detail

Field

protected Field()

An empty constructer so that DDRField can do it's own thing. Do not use unless you really know what you are doing.

Field

public Field(ISO8211InputStream in,
             Record record,
             int index,
             DDR ddr,
             boolean debug)
      throws java.lang.Exception

create and return a Field object by reading from the current point in this stream

Parameters:

in - the stream to read me from

record - the record of which I form part

index - my index number within the record

ddr - the data description record for this file (?) needed?

debug - whether or not I'm in debug mode

Method Detail

generate

protected org.w3c.dom.Element generate(org.w3c.dom.Document doc,
                                       uk.co.weft.dbutil.Context context)
                                throws uk.co.weft.domutil.GenerationException

Generate XML element representing this field.

Parameters:

doc - the document in which the element is to be generated

context - a context containin any bits and pieces I might need to know about

Throws:

uk.co.weft.domutil.GenerationException - if anything goes wrong