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Designing XML Based Applications

return false;

}

Code Example 4.6

Ensuring the Expected Type of a DTD Conforming Document

public static final String W3C_XML_SCHEMA

= "http://www.w3.org/2001/XMLSchema";

public static final String JAXP_SCHEMA_LANGUAGE

= "http://java.sun.com/xml/jaxp/properties/schemaLanguage";

public static final String JAXP_SCHEMA_SOURCE

= "http://java.sun.com/xml/jaxp/properties/schemaSource";

public static SAXParser createParser(boolean validating,

boolean xsdSupport, CustomEntityResolver entityResolver,

String schemaURI) throws ... {

// Obtain a SAX parser from a SAX parser factory

SAXParserFactory parserFactory

= SAXParserFactory.newInstance();

// Enable validation

parserFactory.setValidating(validating);

parserFactory.setNamespaceAware(true);

SAXParser parser = parserFactory.newSAXParser();

if (xsdSupport) { // XML Schema Support

try {

// Enable XML Schema validation 

parser.setProperty(JAXP_SCHEMA_LANGUAGE,

W3C_XML_SCHEMA);

// Set the validating schema to the resolved schema URI

parser.setProperty(JAXP_SCHEMA_SOURCE,

entityResolver.mapEntityURI(schemaURI));

} catch(SAXNotRecognizedException exception) { ... }

}

return parser;

}

Code Example 4.7

Setting the Parser for Validation in JAXP 1.2