The best way to implement business logic to a .JSP ?

Hi experts,
I want to implement some business logic to a .JSP file wich is in my modified
<b>com.xxxNew.portal.usermanagement.admin.pa</b>r file!
For examle creating different roles for useres by registration dependently what they inseret in the registration.jsp!
What is the best way to do this? I have tried out to create a stateless session bean for this. Is this the right way?
Can someone give me information how can I access this bean from my JSP (.par file) and how can I upload it to the portal?

Hi,
Here is the document about Calling J2EE Applications from Portal Applications:
http://help.sap.com/saphelp_nw70/helpdata/en/42/9ddf20bb211d72e10000000a1553f6/frameset.htm
So in your JSP do the lookup of your EJB.
I do not think using EJB at this level is really good, as you do not deal with DB, security and transactions in your code.
http://www.jguru.com/faq/view.jsp?EID=126400
Why not just use a portal component like JSPDynpage for this purpose?
Greetings,
Praveen Gudapati

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[JHeadstart 10.1.3 build 78]
[JDeveloper 10.1.3 SU4]
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<?xml version="1.0" encoding="windows-1252"?>
<!DOCTYPE faces-config PUBLIC
"-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
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<managed-bean-scope>request</managed-bean-scope>
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<managed-property>
<property-name>bindings</property-name>
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<?xml version='1.0' encoding='windows-1252' ?>
<!DOCTYPE ViewObject SYSTEM "jbo_03_01.dtd">
<ViewObject
Name="DefaultValues"
BindingStyle="OracleName"
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<DesignTime>
<Attr Name="_version" Value="10.1.3.36.73" />
<Attr Name="_codeGenFlag2" Value="Access|Coll|VarAccess" />
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<?xml version="1.0" encoding="UTF-8" ?>
<pageDefinition xmlns="http://xmlns.oracle.com/adfm/uimodel"
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<NamedData NDName="arguments" NDValue="#{searchDefaultValues.arguments}"
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<NamedData NDName="allConditionsMet"
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<NamedData NDName="rowKeyStr" NDValue="#{row.rowKeyStr}"
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<action id="CreateDefaultValues" IterBinding="DefaultValuesIterator"
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<action id="DeleteDefaultValues" IterBinding="DefaultValuesIterator"
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<action id="Commit" RequiresUpdateModel="true" Action="100"
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<action id="Rollback" RequiresUpdateModel="false" Action="101"
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