What is SAX in WT?

Posted on by Muna Meyer

What is SAX in WT?

SAX (Simple API for XML) is an event-driven online algorithm for parsing XML documents, with an API developed by the XML-DEV mailing list. SAX provides a mechanism for reading data from an XML document that is an alternative to that provided by the Document Object Model (DOM).

What does SAX parser do?

SAX (Simple API for XML) is an event-based parser for XML documents. Unlike a DOM parser, a SAX parser creates no parse tree. Reports the application program the nature of tokens that the parser has encountered as they occur. The application program provides an “event” handler that must be registered with the parser.

How does SAX parser work example?

SAXParser provides method to parse XML document using event handlers. This interface contains callback methods that receive notification when an event occurs. For example StartDocument, EndDocument, StartElement, EndElement, CharacterData etc. org.

What is DOM and SAX explain?

DOM stands for Document Object Model while SAX stands for Simple API for XML parsing. DOM parser load full XML file in-memory and creates a tree representation of XML document, while SAX is an event based XML parser and doesn’t load whole XML document into memory.

Is SAX parser a push API?

Q 3 – What is a SAX Parser? B – SAX Parser is PUSH API Parser.

How do you write a SAX parser?

Java SAX Parser – Read XML Example

  1. Prepare xml file to be parsed. This xml file contains xml attributes also along with xml elements.
  2. Create model class. package com.howtodoinjava.xml.sax;
  3. Build the handler by extending DefaultParser. Below the code for parse handler.
  4. SAX parser to read XML file.

How do you make a SAX parser?

Using a SAX Parser

  1. Import the JAXP classes.
  2. Get an instance of the SAXParserFactory class.
  3. Using the instances of the SAXParserFactory class and the SAXParser class, generate an instance of the parser.
  4. Get the XMLReader from the SAXParser instance.
  5. In the XMLReader, register an instance of the event-handling classes.

How do you use a SAX parser?

SAX is an API used to parse XML documents. It is based on events generated while reading through the document. Callback methods receive those events. A custom handler contains those callback methods.