Java in a Nutshell, 5th Edition [Electronic resources]

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XMLReaderAdapterorg.xml.sax.helpers

Java 1.4

This adapter class wraps a SAX2 XMLReader object and makes it behave like a SAX1 Parser object. It is useful when working with a legacy API that requires a deprecated Parser object. Create an XMLReaderAdapter by passing an XMLReader to the XMLReaderAdapter( ) constructor. Then use the resulting object exactly as you would use any other SAX1 Parser object. This class implements ContentHandler so that it can receive SAX events from the XMLReader. But it also implements the Parser interface so that it can have a SAX1 DocumentHandler registered on it. The methods of ContentHandler are implemented to invoke the corresponding methods of the registered DocumentHandler.

Figure 22-19. org.xml.sax.helpers.XMLReaderAdapter

public class

XMLReaderAdapter implements org.xml.sax.ContentHandler, org.xml.sax.Parser { // Public Constructors public

XMLReaderAdapter ( ) throws org.xml.sax.SAXException; public

XMLReaderAdapter (org.xml.sax.XMLReader

xmlReader ); // Methods Implementing ContentHandler public void

characters (char[ ]

ch , int

start , int

length ) throws org.xml.sax.SAXException; public void

endDocument ( ) throws org.xml.sax.SAXException; public void

endElement (String

uri , String

localName , String

qName ) throws org.xml.sax.SAXException; public void

endPrefixMapping (String

prefix ); empty public void

ignorableWhitespace (char[ ]

ch , int

start , int

length ) throws org.xml.sax.SAXException; public void

processingInstruction (String

target , String

data ) throws org.xml.sax.SAXException; public void

setDocumentLocator (org.xml.sax.Locator

locator ); public void

skippedEntity (String

name ) throws org.xml.sax.SAXException; empty public void

startDocument ( ) throws org.xml.sax.SAXException; public void

startElement (String

uri , String

localName , String

qName , org.xml.sax.Attributes

atts ) throws org.xml.sax.SAXException; public void

startPrefixMapping (String

prefix , String

uri ); empty // Methods Implementing Parser public void

parse (String

systemId ) throws java.io.IOException, org.xml.sax.SAXException; public void

parse (org.xml.sax.InputSource

input ) throws java.io.IOException, org.xml.sax.SAXException; public void

setDocumentHandler (org.xml.sax.DocumentHandler

handler ); public void

setDTDHandler (org.xml.sax.DTDHandler

handler ); public void

setEntityResolver (org.xml.sax.EntityResolver

resolver ); public void

setErrorHandler (org.xml.sax.ErrorHandler

handler ); public void

setLocale (java.util.Locale

locale ) throws org.xml.sax.SAXException; }