You also set a factory attribute to specify the parser language to use.
(For SAX parsing, on the other hand, you set a property on the parser generated by the factory).
This "unnamed namespace" (or "null namespace") is like the number zero.
It does not have any value to speak of (no name), but it is still precisely defined.
So a namespace that does have a name can never be used as the default namespace.
When parsed, each element in the data set will be validated against the appropriate schema, as long as those schemas have been declared.
Note that each of the topics described here can be covered in a separate paper by itself so we will only provide a general flavor of each topic and refer readers to other documents for more information.
The static final String employee Schema = "employee Database.xsd"; static final String tax Schema = "w2Tax Form.xsd"; static final String hiring Schema = "hiring Form.xsd"; static final String schemas = ; static final String JAXP_SCHEMA_SOURCE = " Source"; // ...
If the schema definition does not define a target namespace, then it applies to the default (unnamed, or null) namespace.
So, in our example, you would expect to see these target namespace declarations in the schemas: An array of Objects can be used only when the schema language has the ability to assemble a schema at runtime.
This section looks at the process of XML Schema validation.
Although a full treatment of XML Schema is beyond the scope of this tutorial, this section shows you the steps you take to validate an XML document using an XML Schema definition.