Ajaz A

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Hi

I am doing the old SCEA exam, and I have bypassed the session facade which is stateful for searches. When searching for flights, a stateless session bean is used so that the system can scale. I am using a fast lane reader to return a potentially large data set. My problem is that now I want to use a value list handler to cache the search results, I realise that the search thing might actually have to be stateful.

How can I take advantage of stateless session bean/DAO (fast lane reader) as well as implementing a value list handler? If I don't make it stateful, I am going to have to store the value list somewhere, and this seems to negate the benefit of bypassing my stateful facade.

This is quite confusing to me!
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Hi Greg,
Make suitable assumptions and ensure that your returned list is not big enough.

If it still is too big to handle, then you need to use stateful session bean to keep the cursor /position information at one centralized location.

Hope this answers your question.

Regards,
Ajaz

Hi,

I suppose the jar file should be less than 1 MB. Try converting your JPG's and images to GIF format.

Regards,
Ajaz

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Hi Ajaz Ahmad,

Congraulations !! Congraulations !!

Could you please share the books you referred to for Part 1.
For sections like :

Application Design Concepts and Principles
Common Architectures
Integration and Messaging
Security


Thanks

Aravind
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Hi Aravind,

Sorry for the delay in the reply. I referred many books and sites during my complete certification period. I studied not with SCEA as a perspective. Initially, I started learning on different topics and then focused on certification.

As far as book are concerned, I referred 1) MArk cade & 2)Allen Bambara which are certification oriented.

I would recommend you to SCEA yahoo groups and view the Files section. You will get plenty of materials which are sufficient.

Regards,
Ajaz

Hi Jane,

It takes atleast 2 weeks for your results to be declared. As per SUN, they say you should wait for 1 month. But in my case, my result came in approx 2 weeks.

Best of luck.

Regards,
Ajaz

Hi Everyone,

Am among the silent listener member of this site. I passed SCEA with 91 % marks. Thanks a lot to all the members for their support.

Marks:

Sequence diag : 12/12
Class Diag:40/44
Component diag:39/44

Thanks a lot to all the members for their support & help.

One question, after SCEA whats next..?

Regards,
Ajaz

Hi ...!

Am quite confused since last few days about Context object pattern.

My question is "Is ActionForm class in Struts an implementation of Command pattern or Context Object pattern? "

Action classes is an implementation of Command pattern as what I understand. Then ActionForm class implements which pattern?

Does Command object encapsulates the web user HTTPRequest information or do I need to show a seperate class called "Form" which acts as a placeholder for user request information?

Need help from you guys. I know lot of questions, one after another. Appreciate your help.

Thanks & Regards,
Ajaz

Hi Everyone...!

Am quite confused since last few days about Context object pattern.

My question is "Is ActionForm class in Struts an implementation of Command pattern or Context Object pattern? "

Action classes is an implementation of Command pattern as what I understand. Then ActionForm class implements which pattern?

Does Command object encapsulates the user Request information or do I need to show a seperate class called "Form" which acts as a placeholder for user request information?

Need help from you guys. I know lot of questions, one after another. Appreciate your help.

Thanks & Regards,
Ajaz

Any one here, pls help.

Hi,

My seq diagram for Prepare itinerary use case contains around 28 elements. This includes object factories, Front controller, BD, App cont, Facades, TO, Entity objects, DAO, Service loc, etc etc.

The sequence diagram is clear (according to me :-)) and contains five interactions with the user GUI. (search, select, alternativeFlight, Price, etc..etc...)

Is it fine??? Or am I on a wrong path...

Any comments/feedback will be of great help & highly appreciated. Thanks.

Any comments..please.

I'm working on an application which, like many, displays a subset of a large data set with Next Page/Previous Page links. This seemed like a perfect application of the Value List Handler pattern.

My question, however, is this. It mentions that the Value List Handler is cached on the server side. Where is a good place to cache this list? One of the requirements of the application I'm working on is that the amount of "stuff" placed in the user's session should be minimized. Also, the number of user working concurrently is huge. So I cannot use a session bean strategy of VLH.

Is the user's session the only place that makes sense for this? Or is there somewhere else it can be cached and tied to that particular user?

If I dont keep the data in a cache then I need to re execute the query for next subset of data. So I have to keep it as statefull. This again creates a overhead since there will be lot of users.

Thanks in advance for your help...

I'm working on an application which, like many, displays a subset of a large data set with Next Page/Previous Page links. This seemed like a perfect application of the Value List Handler pattern.

My question, however, is this. It mentions that the Value List Handler is cached on the server side. Where is a good place to cache this list? One of the requirements of the application I'm working on is that the amount of "stuff" placed in the user's session should be minimized. Is the user's session the only place that makes sense for this? Or is there somewhere else it can be cached and tied to that particular user?

For thick clients can I keep the value list handler at the client side and not at the server side ? This way I can cache the results at the clients side and will keep the search functionality a SLSB.

Thanks in advance for your help...

Congrats.

Hey can you shed some light on part three...? Like how much time it usually takes? How long should be your answer etc etc....

Thanks.

Congrats.

Hey can you shed some light on part three...?

Not required. But if you are including it make sure that you document it properly.