Saxparserfactory validating

16-Dec-2014 08:34 by 5 Comments

Saxparserfactory validating

XML Schema (XSD) Validation using SAXParser This section describes a tutorial example on how to the Xerces2 SAXParser class to validate an XML document assigned with an XSD file.

saxparserfactory validating-57

Here is my SAXValidator.java: /** * * Copyright (c) 2002 by Dr.

SAXParser Validating(boolean validating) method specifies that the parser produced by this code will validate documents as they are parsed.

SAXParser Validating() method package com.tutorialspoint; import parsers.

private SAXParser create Parser(final boolean validate XML) throws Parser Configuration Exception, SAXException { final SAXParser Factory factory = SAXParser Instance(); Namespace Aware(true); Validating(validate XML); Feature(" validate XML); SAXParser parser = SAXParser(); Assert.assert Not Null("Checking parser exists", parser); Assert.assert Equals("Checking validation", validate XML, Validating()); Assert.assert True("Checking namespace awareness", Namespace Aware()); return parser; } Unfortunately no, since from my experience the SAXParser itself doesn't validate.

You have to parse an XML document and add an Error Handler to discover whether the XML is valid or invalid.

So, even though the SAXParser itself tells you it's validating, it actually isn't, it's only the Content Handler/Error Handler that makes the difference.

By now, you have done a lot of experimenting with the nonvalidating parser.

It's time to have a look at the validating parser to find out what happens when you use it to parse the sample presentation.

You need to understand about two things about the validating parser at the outset: .

Sun's implementation supports any combination of configuration options.

(If a combination is not supported by a particular implementation, it is required to generate a factory configuration error.) Although a full treatment of XML Schema is beyond the scope of this tutorial, this section shows you the steps you take to validate an XML document using an existing schema written in the XML Schema language.

(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.

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