No validating documentbuilder implementation available

DTDs and XSD were normally accessed as configuration options in Simple API for XML (SAX), Document Object Model (DOM), and Java™ API for XML Processing (JAXP). Schematron might use the Transformations API for XML(Tr AX); and still other schema languages required programmers to learn still more APIs, even though they were performing essentially the same operation.Java 5 introduced the package to provide a schema-language-independent interface to validation services.To report errors, it is necessary to provide an Error Handler to the underlying implementation.The Error Handler used for the examples is a very simple one which reports the error to and continues until the XML document has been fully parsed or until a fatal-error has been reported.

Let's dive right into code: "); Document Builder Factory dbf = Document Builder Instance(); Document Builder db = Document Builder(); Document dom = db.parse(new Input Source(xml)); println("root element name = " Document Element()Node Name()); And that's all you need to parse a simple XML string.By comparison, with a SAX parser you have to know exactly what you're looking for at the time you parse.Useful if you're unmarshalling JAXB objects or extracting data from a large file, not so useful if you're exploring a data structure.However, chances are good that you're not parsing simple literal strings, so read on …The DOM API is filled with design patterns, especially creational patterns: package consists solely of interfaces), which can let a misbehaved program wreak havoc in a shared environment such as an app-server.

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