how would you marshall it into a render parameter?
futhermore, i have been thinking and doing research:
i.e.
what if you have a portlet that read something a datasource in the action
request.
if the connection to the datasource fails you would want to show it in the
render (doView/doEdit/doHelp). you may want to pass along the Exception class,
which then would be forwarded to the error.jsp page inside the rendering...
if(request.getAttribute("errorException") != null)
{
//pass the message to error.jsp
}
else
{
//do what you want to with the data from the datasource
}
read this from jsr 168: it seems like using the request.(get|set)Attribute is
valid???
------------------------------------------------------------
25 PLT.11.1.3 Request Attributes
Request attributes are objects associated with a portlet during a single
portlet request.
Request attributes may be set by the portlet or the portlet container to
express information
that otherwise could not be expressed via the API. Request attributes can be
used to share
information with a servlet or JSP being included via the
PortletRequestDispatcher.
30 Attributes are set, obtained and removed using the following methods of the
PortletRequest interface:
? getAttribute
? getAttributeNames
? setAttribute
35 ? removeAttribute
Only one attribute value may be associated with an attribute name.
Attribute names beginning with the ?javax.portlet.? prefix are reserved for
definition
by this specification. It is suggested that all attributes placed into the
attribute set be
named in accordance with the reverse domain name convention suggested by the
Java
40 Programming Language Specification 1 for package naming.
------------------------------------------------------------------------
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