edu.berkeley.cs.db.yfilter.filter
Class EXfilter

java.lang.Object
  |
  +--org.xml.sax.helpers.DefaultHandler
        |
        +--edu.berkeley.cs.db.yfilter.filter.EXfilter

All Implemented Interfaces:

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

Direct Known Subclasses:

EXfilterBasic

public abstract class EXfilter

extends org.xml.sax.helpers.DefaultHandler

Field Summary

static boolean	DEBUG_QUERY_PARSING
static boolean	DEBUG_XML_PARSING
protected java.util.Stack	m_contextPath
protected java.util.Hashtable	m_eventIndex
protected ParsingContext[]	m_events
protected java.io.PrintStream	m_out
protected boolean	m_trace
protected XMLTree	m_tree

Constructor Summary

EXfilter()

Method Summary

abstract int	addQuery(Query query)
void	characters(char[] ch, int start, int count)
void	clear() clear the content for the next message
abstract void	deleteQuery(Query query, int queryId)
void	endDocument()
void	endElement()
void	endElement(java.lang.String uri, java.lang.String local, java.lang.String eleName)
static void	main(java.lang.String[] args)
void	setEventSequence(java.util.ArrayList events)
void	setXMLTree(XMLTree tree)
void	startDocument() event-based processing according to the SAX programming interface
void	startElement()
void	startElement(java.lang.String uri, java.lang.String local, java.lang.String elementName, org.xml.sax.Attributes attrs)
void	startParsing() this function reads an element stream from a parsed representation and calls a similar set of handlers for each element encountered
protected void	startParsing(java.lang.String filename) this function calls event based parsing that in turns calls the event handles provided by the subclasses

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

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

Methods inherited from class java.lang.Object

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

Field Detail

m_tree

protected XMLTree m_tree

m_events

protected ParsingContext[] m_events

m_eventIndex

protected java.util.Hashtable m_eventIndex

m_contextPath

protected java.util.Stack m_contextPath

m_trace

protected boolean m_trace

m_out

protected java.io.PrintStream m_out

DEBUG_QUERY_PARSING

public static boolean DEBUG_QUERY_PARSING

DEBUG_XML_PARSING

public static boolean DEBUG_XML_PARSING

Constructor Detail

EXfilter

public EXfilter()

Method Detail

setXMLTree

public void setXMLTree(XMLTree tree)

setEventSequence

public void setEventSequence(java.util.ArrayList events)

addQuery

public abstract int addQuery(Query query)

deleteQuery

public abstract void deleteQuery(Query query,
                                 int queryId)

startParsing

protected void startParsing(java.lang.String filename)

this function calls event based parsing that in turns calls the event handles provided by the subclasses

Parameters:

filename -

startParsing

public void startParsing()

this function reads an element stream from a parsed representation and calls a similar set of handlers for each element encountered

startDocument

public void startDocument()

event-based processing according to the SAX programming interface

Specified by:

startDocument in interface org.xml.sax.ContentHandler

Overrides:

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

startElement

public void startElement(java.lang.String uri,
                         java.lang.String local,
                         java.lang.String elementName,
                         org.xml.sax.Attributes attrs)

Specified by:

startElement in interface org.xml.sax.ContentHandler

Overrides:

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

characters

public void characters(char[] ch,
                       int start,
                       int count)

Specified by:

characters in interface org.xml.sax.ContentHandler

Overrides:

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

endElement

public void endElement(java.lang.String uri,
                       java.lang.String local,
                       java.lang.String eleName)

Specified by:

endElement in interface org.xml.sax.ContentHandler

Overrides:

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

endDocument

public void endDocument()

Specified by:

endDocument in interface org.xml.sax.ContentHandler

Overrides:

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

startElement

public void startElement()

endElement

public void endElement()

clear

public void clear()

clear the content for the next message

main

public static void main(java.lang.String[] args)