org.apache.torque.engine.database.transform
Class XmlToAppData

java.lang.Object
  |
  +--org.xml.sax.helpers.DefaultHandler
        |
        +--org.apache.torque.engine.database.transform.XmlToAppData

All Implemented Interfaces:

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

public class XmlToAppData

extends org.xml.sax.helpers.DefaultHandler

A Class that is used to parse an input xml schema file and creates an AppData java structure.

Version:

$Id: XmlToAppData.java,v 1.13 2002/04/11 22:02:06 mpoeschl Exp $

Author:

Leon Messerschmidt, Jason van Zyl, Martin Poeschl, Daniel Rall

Field Summary

private AppData	app
private Column	currColumn
private Database	currDB
private ForeignKey	currFK
private Index	currIndex
private Table	currTable
private Unique	currUnique
private static boolean	DEBUG enables debug output
private java.lang.String	errorMessage
private boolean	firstPass
private Table	foreignTable
private static javax.xml.parsers.SAXParserFactory	saxFactory

Constructor Summary

XmlToAppData(java.lang.String databaseType, java.lang.String basePropsFilePath)
Creates a new instance for the specified database type.

Method Summary

(package private) static void	()
void	endElement(java.lang.String uri, java.lang.String localName, java.lang.String rawName) Handles closing elements of the xml file.
void	error(org.xml.sax.SAXParseException spe) Error callback.
void	fatalError(org.xml.sax.SAXParseException spe) Fatal error callback.
AppData	parseFile(java.lang.String xmlFile) Parses a XML input file and returns a newly created and populated AppData structure.
private void	printParseError(java.lang.String type, org.xml.sax.SAXParseException spe)
org.xml.sax.InputSource	resolveEntity(java.lang.String publicId, java.lang.String systemId) EntityResolver implementation.
void	startElement(java.lang.String uri, java.lang.String localName, java.lang.String rawName, org.xml.sax.Attributes attributes) Handles opening elements of the xml file.
void	warning(org.xml.sax.SAXParseException spe) Warning callback.

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

characters, endDocument, endPrefixMapping, ignorableWhitespace, notationDecl, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

private static final boolean DEBUG

enables debug output

app

private AppData app

currDB

private Database currDB

currTable

private Table currTable

currColumn

private Column currColumn

currFK

private ForeignKey currFK

currIndex

private Index currIndex

currUnique

private Unique currUnique

firstPass

private boolean firstPass

foreignTable

private Table foreignTable

errorMessage

private java.lang.String errorMessage

saxFactory

private static javax.xml.parsers.SAXParserFactory saxFactory

Constructor Detail

XmlToAppData

public XmlToAppData(java.lang.String databaseType,
                    java.lang.String basePropsFilePath)

Creates a new instance for the specified database type.

Parameters:

databaseType - The type of database for the application.

basePropsFilePath - The base of the path to the properties file, including trailing slash.

Method Detail

static void ()

parseFile

public AppData parseFile(java.lang.String xmlFile)

Parses a XML input file and returns a newly created and populated AppData structure.

Parameters:

xmlFile - The input file to parse.

Returns:

AppData populated by xmlFile.

resolveEntity

public org.xml.sax.InputSource resolveEntity(java.lang.String publicId,
                                             java.lang.String systemId)

EntityResolver implementation. Called by the XML parser

Overrides:

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

Returns:

an InputSource for the database.dtd file

startElement

public void startElement(java.lang.String uri,
                         java.lang.String localName,
                         java.lang.String rawName,
                         org.xml.sax.Attributes attributes)

Handles opening elements of the xml file.

Overrides:

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

endElement

public void endElement(java.lang.String uri,
                       java.lang.String localName,
                       java.lang.String rawName)

Handles closing elements of the xml file.

Overrides:

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

warning

public void warning(org.xml.sax.SAXParseException spe)

Warning callback.

Overrides:

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

Parameters:

spe - The parse exception that caused the callback to be invoked.

error

public void error(org.xml.sax.SAXParseException spe)

Error callback.

Overrides:

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

Parameters:

spe - The parse exception that caused the callback to be invoked.

fatalError

public void fatalError(org.xml.sax.SAXParseException spe)

Fatal error callback.

Overrides:

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

Parameters:

spe - The parse exception that caused the callback to be invoked.

printParseError

private final void printParseError(java.lang.String type,
                                   org.xml.sax.SAXParseException spe)