A newbish Struts2 question

Here is the situation.

I have 3 actions 1. action/create_something 2. action/save_something 3. action/preview_something

I start at www.site.com/action/create_something

I fill in some info and submit a form which passes to the save_something action

save_something creates an object foo based on the form inputs. foo now has a field call id ("123"). It then saves some data relevant from foo into the database and forwards to preview_something with the id parameter.

Now I am at www.site.com/action/preview_something?id=123

I take the id and create foo by hitting the database. On the page I display the various fields in foo.

Ok... my question is this:

Is it necessary to pass id to action/preview_something and hit the database agai开发者_开发问答n? Is foo still available to me? Does my object foo still exist in the scope of my action class?

Sorry for the newbishness going on here.

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Ok, parameter is not available anymore in preview with your case.

Possible solution #1:

Your struts Action can implement ServletRequestAware. Then you can save your foo object to session in save() method and then read it in preview().

Possible solution #2:

In your save() you can just return preview() and whole scope (object foo, parameters,...) will stay the same as in save().

This would be the easiest way to do it.