Some applications or frameworks can operate against MBOs generically by invoking MBO operations without prior knowledge of MBO classes. This can be achieved by using the MetaData and Object Manager APIs.
These APIs allow retrieving the metadata of packages, MBOs, attributes, operations, and parameters during runtime. The APIs are especially useful for a runtime environment without a reflection mechanism such as J2ME.
MetaData classes are generated automatically. However, you must use the -rm option to generate the object manager class.