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org.w3c.dom
public interface: TypeInfo [javadoc | source] The TypeInfo interface represents a type referenced from Element or Attr nodes, specified in the schemas associated with the document. The type is a pair of a namespace URI and name properties, and depends on the document's schema.

If the document's schema is an XML DTD [XML 1.0], the values are computed as follows:

If the document's schema is an XML Schema [XML Schema Part 1] , the values are computed as follows using the post-schema-validation infoset contributions (also called PSVI contributions):

Note: Other schema languages are outside the scope of the W3C and therefore should define how to represent their type systems using TypeInfo.

See also the Document Object Model (DOM) Level 3 Core Specification.

Field Summary
public static final  int DERIVATION_RESTRICTION    If the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the derivation by restriction if complex types are involved, or a restriction if simple types are involved.
The reference type definition is derived by restriction from the other type definition if the other type definition is the same as the reference type definition, or if the other type definition can be reached recursively following the {base type definition} property from the reference type definition, and all the derivation methods involved are restriction. 
public static final  int DERIVATION_EXTENSION    If the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the derivation by extension.
The reference type definition is derived by extension from the other type definition if the other type definition can be reached recursively following the {base type definition} property from the reference type definition, and at least one of the derivation methods involved is an extension. 
public static final  int DERIVATION_UNION    If the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the union if simple types are involved.
The reference type definition is derived by union from the other type definition if there exists two type definitions T1 and T2 such as the reference type definition is derived from T1 by DERIVATION_RESTRICTION or DERIVATION_EXTENSION, T2 is derived from the other type definition by DERIVATION_RESTRICTION, T1 has {variety} union, and one of the {member type definitions} is T2. Note that T1 could be the same as the reference type definition, and T2 could be the same as the other type definition. 
public static final  int DERIVATION_LIST    If the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the list.
The reference type definition is derived by list from the other type definition if there exists two type definitions T1 and T2 such as the reference type definition is derived from T1 by DERIVATION_RESTRICTION or DERIVATION_EXTENSION, T2 is derived from the other type definition by DERIVATION_RESTRICTION, T1 has {variety} list, and T2 is the {item type definition}. Note that T1 could be the same as the reference type definition, and T2 could be the same as the other type definition. 
Method from org.w3c.dom.TypeInfo Summary:
getTypeName,   getTypeNamespace,   isDerivedFrom
Method from org.w3c.dom.TypeInfo Detail:
 public String getTypeName()
    The name of a type declared for the associated element or attribute, or null if unknown.
 public String getTypeNamespace()
    The namespace of the type declared for the associated element or attribute or null if the element does not have declaration or if no namespace information is available.
 public boolean isDerivedFrom(String typeNamespaceArg,
    String typeNameArg,
    int derivationMethod)
    This method returns if there is a derivation between the reference type definition, i.e. the TypeInfo on which the method is being called, and the other type definition, i.e. the one passed as parameters.