Xmlreaderfactory how to validating xml
The Java XML implementation does so whenever the DTD makes it possible.
The program is configured to take additional arguments when it is started, which tell it to implement no validation, DTD validation, XML Schema Definition (XSD) validation, or XSD validation against a specific schema source file.
(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.
Although the phrase "XML Schema schema" would be precise, we will use the phrase "XML Schema definition" to avoid the appearance of redundancy.
Piccolo is a non-validating XML parser for Java supporting the SAX1, SAX2 with extensions 1.0, and JAXP 1.1 SAX parsing specifications.
Piccolo has been tested using the xmlconf test suite and correctly parses all well-formed documents and correctly identifies all but one well-formedness error.
On the other hand, if you are writing an application that filters an XML data file and if you want to output an equally readable version of the file, then that white space would no longer be irrelevant: it would be essential.
To get those characters, you would add the This code simply generates a message to let you know that ignorable white space was seen. The SAX specification does not require that this method be invoked.
Many XSLT packages will simply use JAXP to create a SAX2 parser and therefore work well with Piccolo.
See the installation and usage information below for the interface you'll be using.