to reduce object creation, this might be better:
class TestBean
{
List l = null;
void ejbCreate() {
init();
}
void ejbActivate()
{
init();
}
void init()
{
if (l == null)
l = new ArrayList();
l.clear();
}
void test(String a)
{
l.add(a);
}
}
> -----Original Message-----
> From: Imre Kifor [SMTP:[EMAIL PROTECTED]]
> Sent: Wednesday, March 17, 1999 2:20 PM
> To: [EMAIL PROTECTED]
> Subject: Re: ejbCreate( ) - initialize instance variables
>
> Sachin,
>
>
> >> class TestBean
> >> {
> >> List l = null;
> >>
> >> void ejbCreate()
> >> {
> >> }
> >>
> >> void ejbActivate()
> >> {
> >> l = new ArrayList();
> >> }
> >>
> >> void test(String a)
> >> {
> >> l.add(a);
> >> }
> >> }
> >
> >Imre,
> >
> >don't we need to have " l = new ArrayList();" in the ejbCreate( ) also
> as
> >ejbActivate is not called for every ejbCreate( ) ? In essence does the
> bean
> >developer end up initializing in activate as well as create methods.
>
>
> Of course, sorry about that. You have to do initialization in both
> ejbActivate and ejbCreate methods (or ejbPostCreate in the case of entity
> beans).
>
> Imre
>
> >Thanks,
> >
> >Sachin.
> >
> >
> >
> >
> >>
> >> The example (combined with our mechanism) will guarantee that 1) your
> deep
> >> hierarchies are ready before your business methods hit 2) pooled
> instances
> >> don't use up resources by storing deep hierarchies associated with a
> >> specific EJBObject 3) left over deep hierarchies are not accessible by
> >> accident when a pooled instance is re-attached to a different
> >> EJBObject and
> >> 4) and the whole thing is fast :-)
> >>
> >> Imre Kifor
> >> Valto Systems
> >>
> >> >
> >> >Constantine
> >> >
> >> >> -----Original Message-----
> >> >> From: Constantine Plotnikov <[EMAIL PROTECTED]>
> >> >> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> >> >> Date: Wednesday, March 17, 1999 8:50 AM
> >> >> Subject: Re: ejbCreate( ) - initialize instance variables
> >> >>
> >> >> >Hi!
> >> >> >
> >> >> >1. Do I understand it correctly? In your server, initial
> >> values for all
> >> >> > fields are saved for each instance and they are restored
> >> right before
> >> >> > creation.
> >> >> >
> >> >> >2. If yes, how do you save values?
> >> >> > a) in serialized form
> >> >> > b) just pointers to values recived as Field.get()
> >> >> > c) other, please clarify what.
> >> >> >
> >> >> >3. If no, could you please clarify semantics of restoring values
> >> >> > in your server.
> >> >> >
> >> >> >Constantine
> >> >> >
> >> >> >Imre Kifor wrote:
> >> >> >>
> >> >> >> We believe that bean instances retrieved from the instance
> >> pool should
> >> >> >> always be in their initial state (i.e. the state right after
> >> >> construction)
> >> >> >> regardless of the used persistence management type.
> >> >> >>
> >> >> >> This means that with Ejipt your 'country' member will be
> predictably
> >> set
> >> >> to
> >> >> >> "USA" upon entering ejbCreate, ejbFindXXX and ejbActivate.
> Moreover,
> >> >> since
> >> >> >> Ejipt resets all instances before returning them to the
> >> pool, you will
> >> >> also
> >> >> >> be assured that your possibly sensitive or very large member data
> is
> >> not
> >> >> >> held by pooled instances.
> >> >> >>
> >> >> >> Imre Kifor
> >> >> >> Valto Systems
> >> >> >>
> >> >> >> -----Original Message-----
> >> >> >> From: Sachin Aggarwal <[EMAIL PROTECTED]>
> >> >> >> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> >> >> >> Date: Tuesday, March 16, 1999 11:26 PM
> >> >> >> Subject: ejbCreate( ) - initialize instance variables
> >> >> >>
> >> >> >> >The spec mentions that ejbCreate( ) initializes instance
> variables.
> >> >> >> >
> >> >> >> >Question 1. Who's reponsibility is that in CMP beans ? The
> >> containers
> >> or
> >> >> >> the
> >> >> >> >bean developers?
> >> >> >> >
> >> >> >> >If the answer to above is Bean Developer, then:
> >> >> >> >Q2. If the instance variable is declared as public String county
> =
> >> >> "USA";
> >> >> >> >and the bean developer does not reinitialize it in
> >> ejbCreate(), then
> >> >> does
> >> >> >> >the container have the right to initialize it to unpredicatable
> >> values ?
> >> >> >> >
> >> >> >> >Thanks for your help.
> >> >> >> >
> >> >> >>
> >> >>
> >> >=================================================================
> >> ==========
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> >> to
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> >> message "help".
> >> >> >> >
> >> >> >> >
> >> >> >>
> >> >> >>
> >> >>
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