java - Do Hibernate table classes need to be Serializable? -

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i have inherited websphere portal project uses hibernate 3.0 connect sql server database.

there 130 hibernate table classes in project. implement serializable. none of them declare serialversionuid field, eclipse ide shows warning of these classes.

is there actual need these classes implement serializable?
if so, there tool add generated serialversionuid field large number of classes @ once (just make warnings go away) ?

is there actual need these classes implement serializable?

the jpa spec (jsr 220) summarizes pretty (the same applies hibernate):

2.1 requirements on entity class

(...)

if entity instance passed value detached object (e.g., through remote interface), entity class must implement serializable interface.

so, strictly speaking, not requirement unless need detached entities sent on wire tier, migrated cluster node, stored in http session, etc.

if so, there tool add generated serialversionuid field large number of classes @ once

i think batch serial version (ant) tasks.


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