Hi Tim!
Unfortunately, the Portlet 1.0 specification does not include events or
messages between two portlets. Some vendors offer proprietary solutions
here.
If the portlets are within the same portlet application, you have the
option to share information between them via the portlet session. The
latter has two scopes, one of them (application scope) is per user and
portlet application.
It is possible to add/update something in the session with this scope
during the processAction of the first portlet, and read/react with the
second portlet within the render phase.
This proceeding has several disadvantages, but in your case, it may
work, and it is standard compliant (i.e. your portlets will run and
interact on all specification conformant portal servers).
I hope this helps,
Stefan
Tim Robertson wrote:
Hi,
I am getting my first hello world portlets running now
(pluto 1.1.0 and spring2.0).
I have portlets running in view and edit mode, but am
wondering the best way to fire events between
portlets?
Suppose I have 2 portlets - one providing a tree view
of the countries of the world, another that provides
the capital city of a country.
I could get both working individually, but can someone
please point me in the best direction for signalling
to the "captial city portlet" when the tree in the
other has changed. I know that I ned to only signal
this once or else the DB will be hit each time, but
not sure how...
I am only at hour 6 of portlet work, so please
understand that I know very little and any direction
would be greatly appreciaed - no matter how trivial.
Thanks,
Tim
(I know this is a pluto list but Im hoping the users
may be able to help)
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