Re: Efficient hashmap serialization?

> I have a a hash map full of objects that contain references to other
> objects in that map, grouped in a threaded message fashion. There's a
> linked list style previous messages and next message.
>
> I serialize this map to send it over RMI, but it seems quite slow.
>
> Does anyone have any recommendations on efficiently serializing it? I
> know I will have to write a function to serialize the objects manually
> but not much beyond that.

Can you give us the types of the keys and values of your Map? Are the
messages plain Strings, or are you using a proper message abstraction type?

If you understand what Serialization does for you, maybe you will change
your opinion on it being quite slow... it's got a lot to do, and it does
everything through reflection.

If you really, really need to speed things up, then consider writing custom
private readObject()/writeObject() methods for your Map's value objects...
though you should profile the serialization step to see what really is
causing the whole thing to eat time.


.

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