is Static methodsl thread safe 2006-03-04 - By Richard Yee
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Prashant,
As long as the static method is not modifying any class variables
(member variables declared with the "static" keyword) a static method
will be thread-safe. Method local variables are created on the stack and
thus are unique for each method call.
-Richard
Parab, Prashant wrote:
>
> Hi Group
>
>
>
> The question is whether static methods are thread safe just like
> instance method.
>
>
>
>
>
> Consider following example for the discussion.
>
>
>
>
>
> public class TestFactory
>
> {
>
>
>
> public static Object getBean(String beanName)
>
> {
>
> /*
>
> Code to return bean depending on the
> argument beanName
>
> */
>
> }
>
>
>
>
>
> }
>
>
>
>
>
> I am bit confused about how the method getBean will behave in the
> multithreaded environment. The point of confusion is, all the static
> declaration inside a class has only one copy in the memory. Assuming
> this is correct then there should be only one copy of getBean method
> in memory. So if two threads are accessing this method simultaneously
> then they may corrupt the value of argument of each other and the
> logic will fail.
>
>
>
>
>
> Based on above discussion kindly let me know your view.
>
>
>
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