Container supporting Portlet interoperability

To deal with the Portlet component interoperation in the enterprise portal, the Portlet container framework was proposed based on the publish/subscribe paradigm, which provided solution to enterprise collaborative interoperation based on Portlet application. In this container framework, message communication among the Portlets was implemented by publish/subscribe in an interoperation model. And the message queue of the interoperation model provided Portlet message storage. So the Portlets could realize interoperations with each other through the interoperation model. Herein, the Portlets in the interoperation could be conducted within different application extents or different portal pages (either local or remote Portlet by Web Service for Remote Portlets (WSRP)) besides within the same application scope.