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Creation of objects and serialzation

Dale DeMott
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Joined: Nov 02, 2000
Posts: 515
ok.. so I have an object that implements serializable. If this object contains other objects, do these internal objects need to be serializable in order to make it all serializable or does the parent implementing serializable automatically apply it to everything.


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Jeff Albertson
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Joined: Sep 16, 2005
Posts: 1780

For an instance of A to successfully serialize, field b must either be null or reference an object that is an instance of a serializable class. Perhaps B implements/extends Serializable or the object referenced is an instance of a subclass of B which itself implements Serializable. A common case of this would be if B were an interface that does not extend Serializable, say List.

There is no automatic transference of serializability to fields in Java, as you may have been hoping for

Field c is guaranteed to work because it is transient. This may require you to implement a writeObject/readObject method. See the API for Serializable.


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Dale DeMott
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Joined: Nov 02, 2000
Posts: 515
So in other words, I need to have all objects that are IN a serialized object also be serializable in order to serialize it?
 
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subject: Creation of objects and serialzation
 
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