The validator can create such type-augmented documents and write them onto a This procedure can't transform an arbitrary source into an arbitrary result.
This is useful for adding constraints that are more easily checked in a Turing-complete language like Java than in a declarative language like the W3C XML Schema language.
You can define a mini-schema language, write a quick implementation, and plug it into the validation layer.
This is the reason why (most of the) XML parser implementations do not support XML Namespaces by default, to handle the validation of XML documents with namespaces correctly it is therefore necessary to configure the underlying parsers to provide support for XML Namespaces.
) as defined below has been used in the code examples to validate the input document.
The You can reuse the same validator and the same schema multiple times in series. Usually the document consumer should choose the schema, not the document producer. All other schema languages require an explicitly specified schema location. The abstract factory design pattern enables this one API to support many different schema languages and object models.
A single implementation usually supports only a subset of the numerous languages and models.To highlight that the DTD has been used for the validation, the title attribute in the input document has a value which is not allowed according to this DTD.When using this DTD to validate the input XML document, the following error gets reported: Before a document can be called XML and not csv, simple text or any other format, it needs to support the basic rules as defined by the XML Recommendation, when it adheres to these rules it is said to be Wellformed XML.However, it's usually done before any further processing of the input takes place.(This description is painted with broad strokes -- there are exceptions.)Until recently, the exact Application Programming Interface (API) by which programs requested validation varied with the schema language and parser.This article shows five ways of how to configure different Java APIs (including DOM, SAX, dom4j and XOM) using JAXP 1.3 for checking and validating XML with DTD and Schema(s).