infovis.graph.io
Class GraphMLReader

java.lang.Object
  infovis.io.AbstractReader
      infovis.io.AbstractXMLReader
          infovis.graph.io.GraphMLReader

All Implemented Interfaces:

ContentHandler, EntityResolver

public class GraphMLReader
extends AbstractXMLReader

GraphML format reader.

Version:

$Revision: 1.18 $

Author:

Jean-Daniel Fekete

InfoVis factory arguments:

GraphReaderFactory xml, GraphReaderFactory gml

Constructor Summary

GraphMLReader(InputStream in, String name, Graph graph)
Constructor for GraphMLReader.

Method Summary

void	characters(char[] ch, int start, int length)
void	declareKey(String keyFor, String ID, String type) Declare a key.
void	endElement(String namespaceURI, String localName, String qName)
int	findNode(String id) Returns a n ode given its unique id.
void	startDocument()
void	startElement(String namespaceURI, String localName, String qName, Attributes atts)

Methods inherited from class infovis.io.AbstractXMLReader

endDocument, endPrefixMapping, ignorableWhitespace, load, processingInstruction, resolveEntity, setDocumentLocator, skippedEntity, startPrefixMapping

Methods inherited from class infovis.io.AbstractReader

close, createColumn, getBufferedReader, getEncoding, getIn, getName, guessFieldType, setEncoding, setIn, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphMLReader

public GraphMLReader(InputStream in,
                     String name,
                     Graph graph)

Constructor for GraphMLReader.

Parameters:

in - the BufferedReader

name - the graph name

graph - the graph.

Method Detail

declareKey

public void declareKey(String keyFor,
                       String ID,
                       String type)

Declare a key.

Parameters:

keyFor - category the key is for, can be graph, edge or node.

ID - identificator for this key.

type - data type of this key.

findNode

public int findNode(String id)

Returns a n ode given its unique id.

Parameters:

id - the unique id.

Returns:

a n ode given its unique id.

startDocument

public void startDocument()
                   throws SAXException

Specified by:

startDocument in interface ContentHandler

Overrides:

startDocument in class AbstractXMLReader

Throws:

SAXException

See Also:

ContentHandler.startDocument()

startElement

public void startElement(String namespaceURI,
                         String localName,
                         String qName,
                         Attributes atts)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class AbstractXMLReader

Throws:

SAXException

See Also:

ContentHandler.startElement(String, String, String, Attributes)

endElement

public void endElement(String namespaceURI,
                       String localName,
                       String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class AbstractXMLReader

Throws:

SAXException

See Also:

ContentHandler.endElement(String, String, String)

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

Specified by:

characters in interface ContentHandler

Overrides:

characters in class AbstractXMLReader

Throws:

SAXException

See Also:

ContentHandler.characters(char[], int, int)