public PSVIDocumentImpl() 
{
            
        super();
}

Create a document.

 public PSVIDocumentImpl(DocumentType doctype) 
{
        super(doctype);
}

For DOM2 support. The createDocument factory method is in DOMImplementation.

 public Node cloneNode(boolean deep) 
{
        PSVIDocumentImpl newdoc = new PSVIDocumentImpl();
        callUserDataHandlers(this, newdoc, UserDataHandler.NODE_CLONED);
        cloneNode(newdoc, deep);
        // experimental
        newdoc.mutationEvents = mutationEvents;
        return newdoc;
}

Deep-clone a document, including fixing ownerDoc for the cloned children. Note that this requires bypassing the WRONG_DOCUMENT_ERR protection. I've chosen to implement it by calling importNode which is DOM Level 2.

 public Attr createAttributeNS(String namespaceURI,
    String qualifiedName) throws DOMException 
{
        return new PSVIAttrNSImpl(this, namespaceURI, qualifiedName);
}

Create an attribute with PSVI information

 public Attr createAttributeNS(String namespaceURI,
    String qualifiedName,
    String localName) throws DOMException 
{
        return new PSVIAttrNSImpl(this, namespaceURI, qualifiedName, localName);
}

Create an attribute with PSVI information

 public Element createElementNS(String namespaceURI,
    String qualifiedName) throws DOMException 
{
        return new PSVIElementNSImpl(this, namespaceURI, qualifiedName);
}

Create an element with PSVI information

 public Element createElementNS(String namespaceURI,
    String qualifiedName,
    String localpart) throws DOMException 
{
        return new PSVIElementNSImpl(this, namespaceURI, qualifiedName, localpart);
}

Create an element with PSVI information

 public DOMConfiguration getDomConfig() 
{
        super.getDomConfig();
        return fConfiguration;
}

The configuration used when Document.normalizeDocument is invoked.

 public DOMImplementation getImplementation() 
{
        // Currently implemented as a singleton, since it's hardcoded
        // information anyway.
        return PSVIDOMImplementationImpl.getDOMImplementation();
}

Retrieve information describing the abilities of this particular DOM implementation. Intended to support applications that may be using DOMs retrieved from several different sources, potentially with different underlying representations.