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transient + static

jordan gong
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Joined: Jun 12, 2001
Posts: 37
Hi, Jane:
Can transient be used together with static to modify a variable?
Is the following statement correct?
final transient static private double PI=3.1415927;
From KM's book that "the transient modifier should not be specified for static variables, as these do not belong to objects." p.126
Thanks.
Manfred Leonhardt
Ranch Hand

Joined: Jan 09, 2001
Posts: 1492
Hi Jordan,
The java compiler won't stop you from doing it, but logically it doesn't make sense. Transient variables only relate to an objects' state. Class variables (static) don't relate to state because only one exists for all objects of that class type. Therefore, you are telling the serialization method not to serial a variable that it won't serialize anyway!
Regards,
Manfred.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: transient + static