DOMImplementation interface provides a number of methods
* for performing operations that are independent of any particular instance
* of the document object model.
* See also the Document Object Model (DOM) Level 3 Core Specification.
*/
public interface DOMImplementation {
/**
* Test if the DOM implementation implements a specific feature and
* version, as specified in DOM Features.
* @param feature The name of the feature to test.
* @param version This is the version number of the feature to test.
* @return true if the feature is implemented in the
* specified version, false otherwise.
*/
public boolean hasFeature(String feature,
String version);
/**
* Creates an empty DocumentType node. Entity declarations
* and notations are not made available. Entity reference expansions and
* default attribute additions do not occur..
* @param qualifiedName The qualified name of the document type to be
* created.
* @param publicId The external subset public identifier.
* @param systemId The external subset system identifier.
* @return A new DocumentType node with
* Node.ownerDocument set to null.
* @exception DOMException
* INVALID_CHARACTER_ERR: Raised if the specified qualified name is not
* an XML name according to [XML 1.0].
*
NAMESPACE_ERR: Raised if the qualifiedName is
* malformed.
*
NOT_SUPPORTED_ERR: May be raised if the implementation does not
* support the feature "XML" and the language exposed through the
* Document does not support XML Namespaces (such as [HTML 4.01]).
* @since DOM Level 2
*/
public DocumentType createDocumentType(String qualifiedName,
String publicId,
String systemId)
throws DOMException;
/**
* Creates a DOM Document object of the specified type with its document
* element.
*
Note that based on the DocumentType given to create
* the document, the implementation may instantiate specialized
* Document objects that support additional features than
* the "Core", such as "HTML" [DOM Level 2 HTML]
* . On the other hand, setting the DocumentType after the
* document was created makes this very unlikely to happen.
* Alternatively, specialized Document creation methods,
* such as createHTMLDocument [DOM Level 2 HTML]
* , can be used to obtain specific types of Document
* objects.
* @param namespaceURI The namespace URI of the document element to
* create or null.
* @param qualifiedName The qualified name of the document element to be
* created or null.
* @param doctype The type of document to be created or null.
* When doctype is not null, its
* Node.ownerDocument attribute is set to the document
* being created.
* @return A new Document object with its document element.
* If the NamespaceURI, qualifiedName, and
* doctype are null, the returned
* Document is empty with no document element.
* @exception DOMException
* INVALID_CHARACTER_ERR: Raised if the specified qualified name is not
* an XML name according to [XML 1.0].
*
NAMESPACE_ERR: Raised if the qualifiedName is
* malformed, if the qualifiedName has a prefix and the
* namespaceURI is null, or if the
* qualifiedName is null and the
* namespaceURI is different from null, or
* if the qualifiedName has a prefix that is "xml" and
* the namespaceURI is different from "
* http://www.w3.org/XML/1998/namespace" [XML Namespaces]
* , or if the DOM implementation does not support the
* "XML" feature but a non-null namespace URI was
* provided, since namespaces were defined by XML.
*
WRONG_DOCUMENT_ERR: Raised if doctype has already
* been used with a different document or was created from a different
* implementation.
*
NOT_SUPPORTED_ERR: May be raised if the implementation does not
* support the feature "XML" and the language exposed through the
* Document does not support XML Namespaces (such as [HTML 4.01]).
* @since DOM Level 2
*/
public Document createDocument(String namespaceURI,
String qualifiedName,
DocumentType doctype)
throws DOMException;
/**
* This method returns a specialized object which implements the
* specialized APIs of the specified feature and version, as specified
* in DOM Features. The specialized object may also be obtained by using
* binding-specific casting methods but is not necessarily expected to,
* as discussed in . This method also allow the implementation to
* provide specialized objects which do not support the
* DOMImplementation interface.
* @param feature The name of the feature requested. Note that any plus
* sign "+" prepended to the name of the feature will be ignored since
* it is not significant in the context of this method.
* @param version This is the version number of the feature to test.
* @return Returns an object which implements the specialized APIs of
* the specified feature and version, if any, or null if
* there is no object which implements interfaces associated with that
* feature. If the DOMObject returned by this method
* implements the DOMImplementation interface, it must
* delegate to the primary core DOMImplementation and not
* return results inconsistent with the primary core
* DOMImplementation such as hasFeature,
* getFeature, etc.
* @since DOM Level 3
*/
public Object getFeature(String feature,
String version);
}