SAX is a state independent processing, where the handling of an element does not depend on the other elements. In SAX we cannot go back to an earlier part of the document and we can only process element by element, one by one from the start to the end.
SAX is fast and efficient and it is useful for state-independent filtering.
This is different from DTD validation where errors, and in particular, validation errors, are not reported.
Java SAX XML parser stands for Simple API for XML (SAX) parser.
SAXParse Exception; /* Extends Default Handler with error handler methods to catch warnings and validation errors */ public class Valid Handler extends Default Handler The validation source is essentially an XML instance and a method to read it.
Reads the instance document from different validation sources. Notice that, if no error handler is set, then both errors and fatal errors throw an exception and thus are reported by the validator.
(To learn more about XML Schema, you can review the online tutorial, Note: There are multiple schema-definition languages, including RELAX NG, Schematron, and the W3C "XML Schema" standard.
(Even a DTD qualifies as a "schema," although it is the only one that does not use XML syntax to describe schema constraints.) However, "XML Schema" presents us with a terminology challenge.
July 6, 2005 Rahul Srivastava After the first release of the W3C XML 1.0 recommendation in early 1998, XML started gaining huge popularity.
But in JAXP 1.1 (JSR-63), XML transformation was introduced using XSL-T.
Unfortunately, the W3C XSL-T specification does not provide any APIs for transformation.
Sun Microsystems Inc., at that time had just formalized the Java Community Process (JCP), and the first version of JAXP (JSR-05) was made public in early 2000, supported by industry majors like (in chronological order) BEA Systems, Fujitsu Limited, Hewlett-Packard, IBM, Netscape Communications, Oracle, and Sun Microsystems, Inc.
JAXP 1.0, then called Java API for XML Parsing, was a box office hit in the developer community, because of the pluggability layer provided by JAXP; that's what the essence of JAXP is.