Package org.jfree.data.xml

Class CategoryDatasetHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.jfree.data.xml.RootHandler

org.jfree.data.xml.CategoryDatasetHandler

All Implemented Interfaces:

DatasetTags, ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class CategoryDatasetHandler
extends RootHandler
implements DatasetTags

A SAX handler for reading a CategoryDataset 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
CategoryDatasetHandler()	Creates a new handler.

Method Summary

Modifier and Type	Method	Description
void	addItem(Comparable rowKey, Comparable columnKey, Number value)	Adds an item to the dataset.
void	endElement(String namespaceURI, String localName, String qName)	The end of an element.
CategoryDataset	getDataset()	Returns the dataset.
void	startElement(String namespaceURI, String localName, String qName, Attributes atts)	The start of 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

Methods inherited from interface org.xml.sax.ContentHandler

declaration

Constructor Details

CategoryDatasetHandler

public CategoryDatasetHandler()

Creates a new handler.

Method Details

getDataset

public CategoryDataset getDataset()

Returns the dataset.

Returns:

The dataset.

addItem

public void addItem(Comparable rowKey,
 Comparable columnKey,
 Number value)

Adds an item to the dataset.

Parameters:

rowKey - the row key.

columnKey - the column key.

value - the value.

startElement

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

The start of 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.