Validating xml against xsd in java


uses the non-validating parser by default, but it can also activate validation.Activating validation allows the application to tell whether the XML document contains the right tags or whether those tags are in the right sequence.In other words, it can tell you whether the document is valid.If validation is not activated, however, it can only tell whether or not the document is well-formed, as was shown in the previous section when you deleted the closing tag from an XML element.For validation to be possible, the XML document needs to be associated to a DTD or an XML schema. Up until this point, this lesson has concentrated on the non-validating parser.This section examines the validating parser to find out what happens when you use it to parse the sample program.



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.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.(Descriptions of these options, to configure the factory to return a namespace-aware parser.

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).