TypeInfo

public interface TypeInfo

TypeInfo界面表示从Element或Attr节点引用的类型，在与文档关联的模式中指定。 该类型是一对名称空间URI和名称属性，并且取决于文档的模式。

如果文档的模式是XML DTD [ XML 1.0 ]， 则按如下方式计算值：

• If this type is referenced from an Attr node, typeNamespace is "http://www.w3.org/TR/REC-xml" and typeName represents the [attribute type] property in the [XML Information Set] . If there is no declaration for the attribute, typeNamespace and typeName are null.
• If this type is referenced from an Element node, typeNamespace and typeName are null.

如果文档的模式是XML模式[ XML Schema Part 1 ]，则使用模式后验证信息集贡献（也称为PSVI贡献）按如下方式计算值：

• If the [validity] property exists AND is "invalid" or "notKnown": the {target namespace} and {name} properties of the declared type if available, otherwise null.

  注意：在撰写本文时，XML Schema规范不要求公开声明的类型。 因此，如果有效性无效，DOM实现可能会选择不提供类型信息。

• If the [validity] property exists and is "valid":
  1. If [member type definition] exists:
     1. If {name} is not absent, then expose {name} and {target namespace} properties of the [member type definition] property;
     2. Otherwise, expose the namespace and local name of the corresponding anonymous type name.
  2. If the [type definition] property exists:
     1. If {name} is not absent, then expose {name} and {target namespace} properties of the [type definition] property;
     2. Otherwise, expose the namespace and local name of the corresponding anonymous type name.
  3. If the [member type definition anonymous] exists:
     1. If it is false, then expose [member type definition name] and [member type definition namespace] properties;
     2. Otherwise, expose the namespace and local name of the corresponding anonymous type name.
  4. If the [type definition anonymous] exists:
     1. If it is false, then expose [type definition name] and [type definition namespace] properties;
     2. Otherwise, expose the namespace and local name of the corresponding anonymous type name.

注意：其他模式语言超出了W3C的范围，因此应该定义如何使用 TypeInfo来表示它们的类型系统。

另请参阅 Document Object Model (DOM) Level 3 Core Specification 。

Summary

Constants

int DERIVATION_EXTENSION

int DERIVATION_LIST

int DERIVATION_RESTRICTION

int DERIVATION_UNION

Public methods

String getTypeName ()

String getTypeNamespace ()

boolean isDerivedFrom (String typeNamespaceArg, 
                String typeNameArg, 
                int derivationMethod)