9.19. Marshalling Options

This is the default strategy for calling the Serializable or Externalizable methods on a user instance.

This strategy creates an integer id for each user object and stores them in a Map, while the id is written to the stream.

When unmarshalling it accesses the IdentityMarshallingStrategy map to retrieve the instance. This means that if you use the IdentityMarshallingStrategy, it is stateful for the life of the Marshaller instance and will create ids and keep references to all objects that it attempts to marshal.