Parameters for Remote Methods
As just stated, RMI serializes parameters in remote method calls. Actually, RMI passes two different types of entities in method calls:
Serialized objects—These are serialized copies of the local value the client uses as a parameter to the remote method.
Remote references—If the parameter of a remote method is a remote object, defined and instantiated on the client side, RMI sends a remote reference (stub) as a marshalled parameter—not a copy of the object.
This distinction is very critical to the performance of your RMI applications. If you send small values, such as a string that represents a birth date or telephone number, it will not result in a very significant data transfer of marshalled data.
If, on the other ...
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