com.nwalsh.saxon
Class ColumnUpdateEmitter

java.lang.Object
  com.icl.saxon.output.Emitter
      com.nwalsh.saxon.CopyEmitter
          com.nwalsh.saxon.ColumnUpdateEmitter

All Implemented Interfaces:

javax.xml.transform.Result

public class ColumnUpdateEmitter
extends CopyEmitter

Saxon extension to scan the column widthsin a result tree fragment.

$Id: ColumnUpdateEmitter.java,v 1.1 2001/07/16 21:23:57 nwalsh Exp $

Copyright (C) 2000 Norman Walsh.

This class provides a Saxon 6.* implementation to scan the column widths in a result tree fragment.

The general design is this: the stylesheets construct a result tree fragment for some colgroup environment. That result tree fragment is "replayed" through the ColumnUpdateEmitter; the ColumnUpdateEmitter watches the cols go by and extracts the column widths that it sees. These widths are then made available.

Change Log:

1.0

Initial release.

Version:

$Id: ColumnUpdateEmitter.java,v 1.1 2001/07/16 21:23:57 nwalsh Exp $

Author:

Norman Walsh ndw@nwalsh.com

Field Summary

protected static java.lang.String	foURI The FO namespace name.
protected com.icl.saxon.om.NamePool	namePool
protected int	numColumns The number of columns seen.
protected java.lang.String[]	width

Fields inherited from class com.nwalsh.saxon.CopyEmitter

rtf, rtfEmitter

Fields inherited from class com.icl.saxon.output.Emitter

locator, outputProperties, outputStream, systemId, writer

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

ColumnUpdateEmitter(com.icl.saxon.Controller controller, com.icl.saxon.om.NamePool namePool, java.lang.String[] width)
Construct a new ColumnUpdateEmitter.

Method Summary

void	startElement(int nameCode, org.xml.sax.Attributes attributes, int[] namespaces, int nscount) Examine for column info.

Methods inherited from class com.nwalsh.saxon.CopyEmitter

characters, comment, endDocument, endElement, getResultTreeFragment, processingInstruction, setDocumentLocator, setEscaping, setNamePool, setUnparsedEntity, setWriter, startDocument

Methods inherited from class com.icl.saxon.output.Emitter

getNamePool, getOutputProperties, getOutputStream, getSystemId, getWriter, makeEmitter, setOutputProperties, setOutputStream, setSystemId, usesWriter

Methods inherited from class java.lang.Object

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

Field Detail

numColumns

protected int numColumns

The number of columns seen.

width

protected java.lang.String[] width

namePool

protected com.icl.saxon.om.NamePool namePool

foURI

protected static java.lang.String foURI

The FO namespace name.

Constructor Detail

ColumnUpdateEmitter

public ColumnUpdateEmitter(com.icl.saxon.Controller controller,
                           com.icl.saxon.om.NamePool namePool,
                           java.lang.String[] width)

Construct a new ColumnUpdateEmitter.

Method Detail

startElement

public void startElement(int nameCode,
                         org.xml.sax.Attributes attributes,
                         int[] namespaces,
                         int nscount)
                  throws javax.xml.transform.TransformerException

Examine for column info.

Overrides:

startElement in class CopyEmitter

Throws:

javax.xml.transform.TransformerException