>>>>
The above answers assume that none of the local variables are
references to
finite resources
like DB Connections that can be shared of course.
>>>>
Even if a local variable refers to a db resource etc, it is *still*
threadsafe, because
each servlet thread will refer to different instances of the
resource....unless of course, if the resource is a singleton.
--Olu E.
> -----Original Message-----
> From: Andy Bailey [SMTP:[EMAIL PROTECTED]]
> Sent: Friday, November 05, 1999 7:42 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Is this correct ?
>
> > Hi everyone
> >
> > Could you give a yes or no on the querys below please if possible:
> >
> > 1. A thread enters doGet, the local variables are thread safe?
> Local to the method, yes.
>
> > 2. A thread in doGet calls a method passing local variables, still
> > thread safe ?
>
> Yes.
>
> > 3. The method called above has local variables which are used in
> > processing the above, still safe ?
>
> Yes.
>
> > 4. The method returns a result and the doGet continues through methods
> > similar to above before outputting a result. As I understand it this
> > should be thread safe and I do not have to concern myself with
> > concurrency problems, is this correct?
>
> Yes, if the returned var is stored in a var local to the calling method
>
> > 5. Only instance variables need 'protecting' against concurrency
> > problems, yes or no ?
> Only if they are read from and written to.
>
> The above answers assume that none of the local variables are references
> to
> finite resources
> like DB Connections that can be shared of course.
>
> Andy Bailey
>
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