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Having prooblem with accessing EJB from JSP

Posted on 2007-04-10
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Last Modified: 2013-11-24
Hi Guys

I have a JSP in which i need to get data From an Access Bean. Now in the access bean I call the finder method findByStoreId(storeId). This method gives me the whole ejb and then I need to call the getCRId() method to get only the id's and store it in a hashtable

i started with something like this, would anyody please help me how I can complete the code and if there is a way to get the id using usebean in JSTL. I would really appreciate any kind of help

Thanks

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SRSCashRegisterAccessBean crBean = new SRSCashRegisterAccessBean();
                  
                  Enumeration en = crBean.findByStoreId(new Long(storeId.substring(3,storeId.length()-8)));
                  while (en.hasMoreElements()) {
                        crBean = (SRSCashRegisterAccessBean) en.nextElement();      
//Todo
call the getCrId() method and store data in a hashtable
//end Todo
}
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Question by:huzefaq
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5 Comments
 
LVL 11

Expert Comment

by:Manish
ID: 18887613
Do you want all above code in jstl?
or if in jsp you have SRSCashRegisterAccessBean bean ?

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LVL 10

Expert Comment

by:mbvvsatish
ID: 18887937
using finder methods will be heavy for such senario's.
you can write a Home Business method to fetch all the Crid's as a collection object.

write a business method in home interface and in the bean class use ejbselect methods to query the database for all the crid's and return them as a collection object.


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Author Comment

by:huzefaq
ID: 18891365
yes can I change the whole code of accessing a finder method to JSTL.

Also mbvvsatish would u know of any tutorial or exaple which I can use to implement this. I know about entitiy EJB's but haven't worked on it much

Thanks guys


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LVL 10

Accepted Solution

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mbvvsatish earned 250 total points
ID: 18895869
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LVL 11

Assisted Solution

by:Manish
Manish earned 250 total points
ID: 18895969
I dont think you can create class in jstl.
SRSCashRegisterAccessBean crBean = new SRSCashRegisterAccessBean();
                  Enumeration en = crBean.findByStoreId(new Long(storeId.substring(3,storeId.length()-8)));

Above portion is difficult to convert in jstl.
It is not possible to pass parameter in method in jstl.
When you get list that  is possible to iterate using forEach tag of jstl
check this
http://java.about.com/od/beginningjava/l/aa_jstl_intro.htm
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