uk.org.ogsadai.converters.webrowset
Class WebRowSetParser

java.lang.Object
  |
  +--org.xml.sax.helpers.DefaultHandler
        |
        +--uk.org.ogsadai.converters.webrowset.WebRowSetParser

All Implemented Interfaces:

org.xml.sax.ContentHandler, org.xml.sax.DTDHandler, org.xml.sax.EntityResolver, org.xml.sax.ErrorHandler

public class WebRowSetParser

extends org.xml.sax.helpers.DefaultHandler

This class parses a WebRowSet XML document, pushing the parsed results into a WebRowSetHandler.

Author:

The OGSA-DAI Team.

See Also:

WebRowSetHandler, ColumnMetaData, TypeStrategy

Nested Class Summary

private class	WebRowSetParser.DataHandler A handler for the data element of a WebRowSet.
private class	WebRowSetParser.MetaDataHandler A handler for the metadata element of a WebRowSet.
private class	WebRowSetParser.PropertiesHandler A handler for the properties element of a WebRowSet.

Field Summary

private static java.lang.String	COPYRIGHT_NOTICE
private ElementHandler	mHandler
private org.xml.sax.InputSource	mInput
private org.xml.sax.Locator	mLocator
private WebRowSetHandler	mOutput
private javax.xml.parsers.SAXParser	mParser

Constructor Summary

WebRowSetParser()
Constructs a new WebRowSetParser

Method Summary

void	characters(char[] ch, int start, int length)
void	endElement(java.lang.String uri, java.lang.String localName, java.lang.String qName)
void	parse() Starts parsing the XML WebRowSet.
void	setDocumentLocator(org.xml.sax.Locator locator)
void	setInput(java.io.Reader reader) Set the input source of the parser that provides the WebRowSet XML.
void	setOutput(WebRowSetHandler handler) Set the WebRowSetHandler which handles the parsed data.
void	setParsingStrategy(ElementHandler strategy) The current strategy to use when parsing the data.
void	startElement(java.lang.String uri, java.lang.String localName, java.lang.String qName, org.xml.sax.Attributes attr)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, error, fatalError, ignorableWhitespace, notationDecl, processingInstruction, resolveEntity, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl, warning

Methods inherited from class java.lang.Object

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

Field Detail

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

See Also:

Constant Field Values

mParser

private javax.xml.parsers.SAXParser mParser

mInput

private org.xml.sax.InputSource mInput

mOutput

private WebRowSetHandler mOutput

mHandler

private ElementHandler mHandler

mLocator

private org.xml.sax.Locator mLocator

Constructor Detail

WebRowSetParser

public WebRowSetParser()
                throws ExternalModuleException

Constructs a new WebRowSetParser

Throws:

ExternalModuleException - if there was a problem setting up the parser.

Method Detail

setInput

public void setInput(java.io.Reader reader)

Set the input source of the parser that provides the WebRowSet XML.

Parameters:

reader - WebRowSet data source.

setOutput

public void setOutput(WebRowSetHandler handler)

Set the WebRowSetHandler which handles the parsed data.

Parameters:

handler - Handler parsed data.

setParsingStrategy

public void setParsingStrategy(ElementHandler strategy)

The current strategy to use when parsing the data.

Parameters:

strategy - A parsing strategy.

parse

public void parse()
           throws org.xml.sax.SAXException,
                  java.io.IOException

Starts parsing the XML WebRowSet.

Throws:

org.xml.sax.SAXException - if a parsing problem occurred.

java.io.IOException - if there was a problem reading from the input source.

setDocumentLocator

public void setDocumentLocator(org.xml.sax.Locator locator)

Specified by:

setDocumentLocator in interface org.xml.sax.ContentHandler

Overrides:

setDocumentLocator in class org.xml.sax.helpers.DefaultHandler

startElement

public void startElement(java.lang.String uri,
                         java.lang.String localName,
                         java.lang.String qName,
                         org.xml.sax.Attributes attr)
                  throws org.xml.sax.SAXException

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

org.xml.sax.SAXException

endElement

public void endElement(java.lang.String uri,
                       java.lang.String localName,
                       java.lang.String qName)
                throws org.xml.sax.SAXException

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

org.xml.sax.SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws org.xml.sax.SAXException

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler

org.xml.sax.SAXException