Both of them seem to have the same purpose (create a XMLReader). Some Tutorials contain the one, some the other.
SAXParserFactory:
example code:
// SAXParserFactory
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
XMLReader reader = parser.getXMLReader();
reader.parse(new InputSource("document.xml"));
XMLReaderFactory:
example code:
// XMLReaderFactory
XMLReader xmlReader = XMLReaderFactory.createXMLReader();
xmlReader.parse(new InputSource("document.xml"));
question:
Are these the main differences or are there some i've overseen.
Which one should you choose?
The main JAXP APIs
are defined in the javax.xml.parsers
package. That package contains vendor-neutral factory classes like the SAXParserFactory
which give you a SAXParser
.
The SAXParserFactory
defines a factory API that enables applications to configure and obtain a SAX based parser to parse XML documents.
The SAXParser
defines the API that wraps an XMLReader
implementation class.
The Package org.xml.sax
defines the basic SAX APIs.
The Java Runtime comes with a default implementation XMLReader
The SAXParserFactory
hides details of which (SAX1) ParserFactory / (SAX2) XMLReaderFactory, ... from you.
If you want to be able to replace the default JAXP
Parser by a different JAXP
Parser (there may be a known incomapatibilty / bug in the default implementation) implementation you should use the vendor neutral SAXParserFactory
.
If you know that your application will allways use a SAX2
XMLReader
you may use the XMLReaderFactory
.
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