Module org.jfree.chart

Package org.jfree.data.xml

Class PieDatasetHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.jfree.data.xml.RootHandler

org.jfree.data.xml.PieDatasetHandler

All Implemented Interfaces:

DatasetTags, ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class PieDatasetHandler
extends RootHandler
implements DatasetTags

A SAX handler for reading a PieDataset from an XML file.

Field Summary

Fields inherited from interface org.jfree.data.xml.DatasetTags

CATEGORYDATASET_TAG, ITEM_TAG, KEY_TAG, PIEDATASET_TAG, SERIES_TAG, VALUE_TAG

Constructor Summary

Constructors

Constructor	Description
PieDatasetHandler()	Default constructor.

Method Summary

Modifier and Type	Method	Description
void	addItem(Comparable key, Number value)	Adds an item to the dataset under construction.
void	endElement(String namespaceURI, String localName, String qName)	The end of an element.
PieDataset	getDataset()	Returns the dataset.
void	startElement(String namespaceURI, String localName, String qName, Attributes atts)	Starts an element.

Methods inherited from class org.jfree.data.xml.RootHandler

characters, getCurrentHandler, getSubHandlers, popSubHandler, pushSubHandler

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

PieDatasetHandler

public PieDatasetHandler()

Default constructor.

Method Detail

getDataset

public PieDataset getDataset()

Returns the dataset.

Returns:

The dataset.

addItem

public void addItem(Comparable key,
                    Number value)

Adds an item to the dataset under construction.

Parameters:

key - the key.

value - the value.

startElement

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

Starts an element.

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Parameters:

namespaceURI - the namespace.

localName - the element name.

qName - the element name.

atts - the element attributes.

Throws:

SAXException - for errors.

endElement

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

The end of an element.

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Parameters:

namespaceURI - the namespace.

localName - the element name.

qName - the element name.

Throws:

SAXException - for errors.