I am still learning about EJBs, Struts, and a whole host of other things. I'm writing
a simple web app to manage my product license keys. I have 3 CMR EJBs that I'm
working with: ProductVendor, Product, and LicenseKey. The beans are created such
that a ProductVendor can have multiple Products, each of which can have multiple
LicenseKeys.
In my web app, I would like to be able to list all of the entries in my database. In
my Struts Action, I perform a findAll() to return a Collection of ProductVendors, and
then call request.setAttribute("vendorList", vendors); so it can be referenced from my
JSP.
In my JSP, I have the following to iterate over the list and display the entries:
<logic:iterate id="vlist" name="vendorList">
<bean:write name="vlist" property="name" />
<ul>
<logic:iterate id="plist" name="vlist" property="products">
<li><bean:write name="plist" property="title" /></li>
</logic:iterate>
</ul>
</logic:iterate>
Everything looks like it is in order. However, when I try to display the JSP I get
the following exception: org.apache.jasper.JasperException: A CMR collection may only
be used within the transction in which it was created.
Can anyone explain to me what the problem is? Does anyone know how I could go about
displaying the list like I would like? I'd really appreciate any help you could give
this poor newbie. Thanks in advance!
Steve Nakhla
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