The immdump tool currently dumps the entire imm database to a file
(either imm-xml format or imm-sqlite format). There is a need for
performing more selective dumping. Currently this is possible to
achieve by post processing the dump using the imm-xml-tools or by
implementing a customized tool.
It should be simple to implement support in immdump for accepting a
list of classes in the argument list and to selectively dump only the
instances that belong to classes in the list.