Document, containing an "indexed.alt" document element.
Document, containing an "indexed.alt" document element.
Note that class Document does not have any query methods for Elem instances. In particular, the ElemApi does not
apply to documents. Therefore, given a document, querying for elements (other than the document element itself) always goes
via the document element.
Like an "indexed" element, except that the implementation prefers fast element tree creation over fast querying.
As the "indexed" package, but offering an element implementation that chooses fast element creation over element querying speed. These elements are suitable as backing objects of wrapper elements.