It can also tell you whether an attribute is an ID, and whether the attribute was explicitly specified in the document or defaulted in from the schema. book: #Anon Type_book title: #Anon Type_title subtitle: #Anon Type_subtitle info: #Anon Type_info copyright: #Anon Type_copyright year: #Anon Type_year holder: #Anon Type_holder author: #Anon Type_author personname: #Anon Type_personname firstname: #Anon Type_firstname othername: #Anon Type_othername surname: #Anon Type_surname personblurb: #Anon Type_personblurb para: #Anon Type_para link: #Anon Type_link As you can see, the Doc Book schema assigns most elements anonymous complex types.Obviously, this will vary from one schema to the next.
If there's a problem with the data, it's better to find out earlier than later.In the context of Extensible Markup Language (XML), validation normally involves writing a detailed specification for the document's contents in any of several schema languages such as the World Wide Web Consortium (W3C) XML Schema Language (XSD), RELAX NG, Document Type Definitions (DTDs), and Schematron.They might also assign types like int or g Year to an element or attribute.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.Sometimes validation is performed while parsing, sometimes immediately after.
However, it's usually done before any further processing of the input takes place.
Then, install your JAR in one of these four locations.
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.
Among other products, an implementation of this library is included with Xerces 2.8. If you validate in multiple threads simultaneously, make sure each one has its own However, normally this isn't what you want.
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.
For example, suppose you want to log all validation errors, but you don't want to stop processing when you encounter one.