What is new in WSRP 2.0


Here is a small information about WSRP 2.0 specification released last month. In new specification, the number of interfaces remain same but new methods are being added in all the interfaces except "Service Description" interface. Following is a list of new operations as well as extensions added in various interface. The method extensions are shown in italics.

Markup Interface:
    getResource(...)
    handleEvevnts(...) [Added for Interportlet communication]
    performBlockingInteraction(...) - Extended to return public navigational state and events generated by interaction
   
Registration Interface :
    getRegistrationLifetime(...)
    setRegistrationLifetime(...)


Portlet Management Interface :
    getPortletsLifeTime(...)
    setPortletsLifeTime(...)
    copyPortlets(...)
    exportPortlets(...)
    importPortlets(...)
    releaseExport(...)
    setExportLifetime(...)
    getPortletDescription(...) - Extended to include events portlet generates and handles, and public navigational state


Service Description Interface :
    getServiceDescription(...) - Extended to include event descriptions and support for optional features (e.g. copy, export, import)


As we can see, Portlet Management interface is the one which is enhanced drastically.

Apart from changes in the interfaces, WSRP2.0 is now a 3 step protocol. An additional step (optional) for distributing events among portlets is being added between performBlockingOperation and getMarkup.


I will write more about WSRP 2.0 soon. Here is the comitee draft, if you want to read more.

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