return the davresource associated with a uri . if the specified uri is relative it will be resolved againstthe root of this davrepository . concode_field_sep DAVResourceFactory factory concode_elem_sep Set listeners concode_elem_sep File root concode_elem_sep String ACCEPTABLE concode_elem_sep URI base concode_field_sep URI getRepositoryURI concode_elem_sep void removeListener concode_elem_sep void notify concode_elem_sep void addListener