A List on the pageFlow in a portlet (8.1)

Question

When I put a java.util.List on the pageFlow, workshop complains that it's
not Serializable.
The annoying this is that the log also reports this warning.
Is it possible to make weblogic ignore this and only this warning?
My business tier's session bean returns a java.util.List.
Should I put the list on the request otherwise?
Thank you for any and all help,
Geoffrey

Answer 1

I delibratly want to use the List interface, this way I stay implementation
independ.
My bean now returns an ArrayList but if at some point I want to use a
LinkedList, it will be a very small adjustment.
This is the entire point of the Collections API.
You can't be sure that an ArrayList doesn't contain no Serializable items
anyway.
So option 1 and 3 are out.
I found a much faster way than option 2: Just put it in the request and pick
it up in the jsp (this works fine as long as you don't need forms).
In any case: the entire PageFlow framework doesn't feel good, for various
reasons, it seems to limit your abilities.
Please take a look at my next post: "netui:form and ..."
Thank you for any and all help,
Geoffrey
"Gregory Smith" <[email protected]> schreef in bericht
news:[email protected]...
That's because the java.util.List interface doesn't extend Serializable.
However, the 2 normally used implementations, ArrayList and LinkedList,
do implement Serializable. And, the java pageflow compiler only knows
that it's a List and that FlowControllers are supposed to be
Serializable and have only Serializable non-transient variables.
I'm not sure if there's a way to make it ignore this warning, but youcould:
1. Have the session bean return a LinkedList or ArrayList and declare
that as the pageflow variable type, or
2. Create a subinterface of java.util.List called SerializableList that
also extends Serializable. Make a subclasses of LinkedList and/or
ArrayList that just implements SerializableList or make the List class
your EJB returns implement SerializableList, and use SerializableList on
the session bean interface and the pageflow variable, or
3. Declare the pageflow variable as a ArrayList, and convert the List
from the session bean an ArrayList, e.g.:
if (listFromEJB instanceof ArrayList)
this.pfList = (ArrayList)listFromEJB;
else
this.pfList = new ArrayList(listFromEJB);
Not perfect, but some ideas.
Greg
Geoffrey wrote:
When I put a java.util.List on the pageFlow, workshop complains that
it's
not Serializable.
The annoying this is that the log also reports this warning.
Is it possible to make weblogic ignore this and only this warning?
My business tier's session bean returns a java.util.List.
Should I put the list on the request otherwise?