We are trying to follow the J2EE Blueprint model where all requests
first go to a Main.jsp which acts as a controller in the MVC pattern.
The Main.jsp calls a LookupBean to get the actual command bean that will
handle this request and the view JSP page that will be shown as a result
of this operation. However we are trying to figure out how to
generically set all the properties of the command bean. It looks
something like this:
Main.jsp
-------------------
<jsp:useBean id="lookup" class="package.LookupBean" scope="request" />
<!-- set the properties required by the lookup bean viz. Action,
Resource-->
<jsp:setProperty name="lookup" property="*" />
<%
CommandBean command = lookup.getCommand();
// We want to generically set all the propeties that Command bean needs
using the <jsp:setProperty> syntax.
bean.action();
req.setAttribute("command", command);
%>
<jsp:forward page="<%=lookup.getView()%>" />
--------------------
CommandBean is an interface that can be implemented by say
ShoppingCartCommandBean, AccountCommandBean, etc. The getCommand()
method of the LookupBean returns a specific type. However we want to
keep the Main.jsp generic enough and not have to do a setProperty() on
each known property of every command bean from the request object.
How do we generically set all the properties of the command bean using
the <jsp:setProperty property="*"> syntax with this approach?
Thanks in advance,
Anirban
Fujitsu Network Communications
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