Hi Darcie,
Note that in line 6 (counting down in the Initial Page example below), you
use the JSP usebean
tag to create a Person. That tag is transformed (in the generated servlet)
into something like this....
com.silknet.ebiz.silkmodels.BusinessObject Person = new
com.silknet.ebiz.silkmodels.BusinessObject();
session.putValue("Person", Person);
At this point, the Java reference object Person points to the same object as
the session Value with key "Person"
In line 15 (again in the same example), you do the following:
Person = Contact.searchEntity("Parent");
You have just changed the object to which the Java reference object points.
The item stored in the session, however,
is the original object created by the usebean tag.
In this case, you probably don't want to use the usebean syntax, but rather
add a session.putValue to your scriptlet.
-AMT
P.S. I use the term "Java reference object" above. I don't know if this is
a correct usage - I just made up that
phrase because I don't know what else to call them (I'm sure an official
name exists, but....) I hope it didn't
cause confusion.
> -----Original Message-----
> From: A mailing list about Java Server Pages specification and reference
> [mailto:[EMAIL PROTECTED]]On Behalf Of Darcie Huntress
> Sent: Monday, January 17, 2000 2:32 PM
> To: [EMAIL PROTECTED]
> Subject: Problem using bean with scope="session"
>
>
> On my starting page, I have instantiated a bean with scope="session" and
> called it "Person". On this initial page, I can call its method
> "getPropertyValue" and see valid data. When I create another page (which
> gets loaded after this initial page, so no race condition should
> be created)
> I am having problems being able to reference "Person". I have tried what
> seems like every possible combination of attributes... what am I doing
> wrong?
>
> Example -- Initial Page:
> ----------------------------------
> <%@page language="java"
> import="com.silknet.ebiz.silkmodels.BusinessObject"
> errorPage="errorpage.jsp"%>
> <jsp:useBean id="Contact" scope="session"
> class="com.silknet.ebiz.silkmodels.BusinessObject"/>
> <jsp:useBean id="Person" scope="session"
> class="com.silknet.ebiz.silkmodels.BusinessObject"/>
> <%
> String eKey = request.getParameter( "key" );
>
> Contact.setName( "Contact" );
> Contact.setKey( eKey );
> Contact.getData();
>
> Person = Contact.searchEntity("Parent");
> out.println( Person.getPropertyValue( "lastName" ) );
> %>
>
> Subsequent page:
> --------------------------
> <%@page language="java"
> import="com.silknet.ebiz.silkmodels.BusinessObject"
> errorPage="errorpage.jsp"%>
> <jsp:useBean id="Person" scope="session"
> class="com.silknet.ebiz.silkmodels.BusinessObject"/>
>
> <%
> out.println( Person.getPropertyValue( "firstName" ) )
> %>
>
>
> I get "null" back for the value, and the page is compiling with no errors.
> I am using JSWDK 1.0.1.... could I have a configuration problem,
> perchance?
>
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