compact2, compact3
org.w3c.dom
Interface TypeInfo
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public interface TypeInfoTheTypeInfointerface represents a type referenced fromElementorAttrnodes, 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 this type is referenced from an
Attrnode,typeNamespaceis"http://www.w3.org/TR/REC-xml"andtypeNamerepresents the [attribute type] property in the [XML Information Set] . If there is no declaration for the attribute,typeNamespaceandtypeNamearenull. - If this type is referenced from an
Elementnode,typeNamespaceandtypeNamearenull.
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):
- If the [validity] property exists AND is "invalid" or "notKnown": the {target namespace} and {name} properties of the declared type if available, otherwise
null.Note: At the time of writing, the XML Schema specification does not require exposing the declared type. Thus, DOM implementations might choose not to provide type information if validity is not valid.
- If the [validity] property exists and is "valid":
- If [member type definition] exists:
- If {name} is not absent, then expose {name} and {target namespace} properties of the [member type definition] property;
- Otherwise, expose the namespace and local name of the corresponding anonymous type name.
- If the [type definition] property exists:
- If {name} is not absent, then expose {name} and {target namespace} properties of the [type definition] property;
- Otherwise, expose the namespace and local name of the corresponding anonymous type name.
- If the [member type definition anonymous] exists:
- If it is false, then expose [member type definition name] and [member type definition namespace] properties;
- Otherwise, expose the namespace and local name of the corresponding anonymous type name.
- If the [type definition anonymous] exists:
- If it is false, then expose [type definition name] and [type definition namespace] properties;
- Otherwise, expose the namespace and local name of the corresponding anonymous type name.
- If [member type definition] exists:
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.
- Since:
- DOM Level 3
- If this type is referenced from an
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Field Summary
Fields Modifier and Type Field and Description static intDERIVATION_EXTENSIONIf the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the derivation by extension.static intDERIVATION_LISTIf the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the list.static intDERIVATION_RESTRICTIONIf 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.static intDERIVATION_UNIONIf the document's schema is an XML Schema [XML Schema Part 1] , this constant represents the union if simple types are involved.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description StringgetTypeName()The name of a type declared for the associated element or attribute, ornullif unknown.StringgetTypeNamespace()The namespace of the type declared for the associated element or attribute ornullif the element does not have declaration or if no namespace information is available.booleanisDerivedFrom(String typeNamespaceArg, String typeNameArg, int derivationMethod)This method returns if there is a derivation between the reference type definition, i.e.
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Field Detail
DERIVATION_RESTRICTION
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.- See Also:
- Constant Field Values
DERIVATION_EXTENSION
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.- See Also:
- Constant Field Values
DERIVATION_UNION
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 byDERIVATION_RESTRICTIONorDERIVATION_EXTENSION, T2 is derived from the other type definition byDERIVATION_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.- See Also:
- Constant Field Values
DERIVATION_LIST
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 byDERIVATION_RESTRICTIONorDERIVATION_EXTENSION, T2 is derived from the other type definition byDERIVATION_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.- See Also:
- Constant Field Values
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Method Detail
getTypeName
String getTypeName()
The name of a type declared for the associated element or attribute, ornullif unknown.
getTypeNamespace
String getTypeNamespace()
The namespace of the type declared for the associated element or attribute ornullif the element does not have declaration or if no namespace information is available.
isDerivedFrom
boolean isDerivedFrom(String typeNamespaceArg, String typeNameArg, int derivationMethod)
This method returns if there is a derivation between the reference type definition, i.e. theTypeInfoon which the method is being called, and the other type definition, i.e. the one passed as parameters.- Parameters:
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typeNamespaceArg- the namespace of the other type definition. -
typeNameArg- the name of the other type definition. -
derivationMethod- the type of derivation and conditions applied between two types, as described in the list of constants provided in this interface. - Returns:
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If the document's schema is a DTD or no schema is associated with the document, this method will always return
false. If the document's schema is an XML Schema, the method will returntrueif the reference type definition is derived from the other type definition according to the derivation parameter. If the value of the parameter is0(no bit is set to1for thederivationMethodparameter), the method will returntrueif the other type definition can be reached by recursing any combination of {base type definition}, {item type definition}, or {member type definitions} from the reference type definition.
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