Struts Portlet to Struts Portlet Communication

Question

Hello,
We have two struts portlets (portlet1, portlet2) in our page. We have the following queries:
1. When user performs some action (submit) in portlet1, can we render the second porlet (portlet2). Second portlet should be visible only after submit in first portlet.
2. We are trying to pass objects between two struts portlets. Can some one provide an idea on how to achieve this. We are trying to set the objects to be passed in request object, but they are not visible in the second portlet.
Basically, our requirement is portlet1 will contain the search criteria and when the user clicks on submit, the results should be displayed in another portlet. Both these portlets are struts enabled.

Answer 1

1. You can create your security manager to dynamically control whether the portlet is displayed or not on the portal page. You can refer to the Portal Developer's Guide to learn more about security managers.
2. You can use the page parameters and portlet parameters to pass this information from one portlet to the other. The Portal Developer's Guide discusses how to do this.
If this doesn't work for some reason (the string is way too long - or for any other reason), you can try to save the information to the session context. The session can be shared between two portlets if they belong to the same provider.
Hope this helps,
Peter