This document discusses three XML parsing models: DOM, SAX, and StAX. DOM builds an in-memory tree representation of the XML document, while SAX is push-based and sends events to an application as it parses the XML. StAX uses a pull-based model where the application pulls events from the parser. The document compares features of each including ease of use, efficiency, capabilities for reading, writing and searching XML.

1. Think More to Understand Better

2. Agenda
 XML Parsing Models
 DOM
 SAX
 StAX
By Goutam Chowdhury

3. Parser Types & XML Event
<book>
<title>XML</title>
<author>Goutam</author>
</book>
Start Element Event
End Element Event
Characters event

4. Tree Model
Where

5. Push Model(SAX)
The SAX parser thus "pushes" events into your
handler
Parser
Application

6. Pull Model (StAX)
Handler "pulls" the XML events out
of the parser
Parser Application

7. Only for those who believe in Data

8. Choose me
Feature StAX SAX DOM
API Type Pull, streaming Push, streaming In memory tree
Ease of Use High Medium High
XPath Capability No No Yes
CPU and Memory
Efficiency
Good Good Varies
Forward Only Yes Yes No
Read XML Yes Yes Yes
Write XML Yes No Yes