Externalization with an NonExternalizable SuperClass
Exernalization with an NonExternalizable SuperClass
Abstract
When using the Externalizable interface, an externalizable
object must implement a writeExternal method to save the state
of the object and a readExternal method to restore the state
of the object. The externalizable object must also coordinate with its
supertype to save and restore its state.
This example demonstrates how an object saves and restores the state
of its nonexternalizable supertype. When the supertype of an
externalizable object is not externalizable, the subclass object
must explicitly save and restore the state of the fields of the
superclass in its own writeExternal and readExternal
methods.