Birla Murugesan

William Brogden wrote:Doing major computation with large numbers of records inside the servlet request/response cycle is a bad idea.

If this was my problem I would have the servlet create a separate process handling small numbers of records at one time and writing the results to a file where it could be downloaded when the job is done.

Bill

William,
Thanks for your response.
But technically, how this can be implemented?
Please provide your suggesions.

Hi,

on Report generation of high volume records(3 lakhs), Application server thrown a out of memory error.so that server crashes & went down.

Actually, we are using the stateless session bean to retrieve this 3 lakhs records from db & iterating the resulset & storing the each record values in vector. Finally returing these all vector objects(say 3 lakhs vector) to client i.e servlet. once again client servlet iterating this vector object & generating the report.

On analyzing the heap dump files, 60% of memory leakage caused due to this large no of created vector objects.

So decided to process the whole results into smaller, manageable chunks.

Please recommend any better design patterns or alternatives to implement this solution.

Hi,

Invoking a UserHome Entity bean in stateless session bean
Getting exception:
java.lag.ClassCastException : remote.com._UserHome_Stub incompatible with remote.com.UserHome
EJB Version : 2.1

App server: webspher 7


Please help me regarding this issue.

Regards,
Birla

Hi Rangers,

Actually i am running tomcat server. In that while Invoking Servlet,the following exception throws

java.lang.NoClassDefFoundError: HTTPClient/CookieModule

How to resolve this.

please help me out this.

Regards,
Birla.M

What is the use of Inner classes in OO perspective?

Hi Rangers,

Question is:

i am using tomcat as web server. i have to different web applications running successfully. These projects are hosted in 2 different places .how to provide common login for these applications. please provide the answer.


Regards,
Birla.M

seetharaman,

Thanks for you suggestions.Actually ,the problem was having same jars in my webapps context and webcontainer lib which was said by you.

once again i thank you for your response.

Regards,
Birla.M

Having a java class com.birla.NewAPI

Having the A.jsp file

In that jsp,while invoking the method of NewAPI

The below exception came

Servlet.service() for servlet jsp threw exception java.lang.LinkageError: com/birla/NewAPI


How to resolve this exception.

Regards,
Birla.M

How to we check if primitives like long,int becomes null?

what is the difference between this following code snippets?

PrintWriter out = response.getWriter(); out.write(str);

and

OutputStream os = response.getOutputStream(); os.write(str); or PrintWriter out = new PrintWriter(os);out.write(str);

which one is best interms of performance and which has to be used at which scenario?

Hi friends,

Thanks for the info given


Regards,
Birla.M

Hi Rangers,

please suggest me a effective Java book to score well in SCJP Exam

Thanks in advance,
Birla

Jaikiran Pai wrote:

Martijn has put up this wiki http://sourceforge.net/apps/mediawiki/ikasaneip/index.php?title=Welcome_Letter which has "How to join the project team" section. Please follow those steps to join the project.

while loading the link (which you given ),the blank page will get opened.
please do the needfull.

Hi,

I am also intrested to join in Ikasan Enterprise Integration Platform project.
please let me know what i need to do

Without iterating the array,Is there is any other way to do it.