Version of the Portlet Specification plans to align with J2EE , integrate other new JSRs relevant for the portlet, and align with the WSRP specification V Learn all about the second version of the Java Portlet Specification (JSR ). In Version , the specification and the APIs more than doubled. Version of the Java Portlet Specification extended the capabilities to was approved by the Java Community Process in March as JSR

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You can set the path to your resource asID, as shown here: This enhancement means that you can use render parameters so that users can navigate between different views in a shared cacheable portlet while the output still remains cached.

Java Portlet Specification – Wikipedia

The portal should provide UI controls that allow the portlet to switch to this mode. Full cacheable resources, which do not depend on interaction state. Do not add new methods on the wrapper; there may be other wrappers in the chain that you don’t know of, and thus the portlet may not be able to access your new method.

Figure 5 depicts the solution in JSR Parameters that have the same key first portleet the resource parameter values merged and then either the private or public render parameter values, depending on whether the parameter key was declared as a public render parameter in portlet.

Generally Portal specification is different and we will use portlet container to manage portlets and its lifecycle.

At runtime, a filter chain of all the filters is applied to the portlet. Let’s start by looking into the details of the new resource URL.


You should not modify state that affects other portlets because the portal framework does not have a chance to update other parts of the portal page for serveResource calls, so that updates to page-level state 28 not be visible.

A portal and a portlet container can be built together as a single component of an application suite or as two separate components of a portal application. If you have portlets that are not customizable and don’t display different content for different users, such as a news-of-the-day portlet, then you get a cache entry for each user, even if all entries are the same. In JSR specificaton, all cache entries were private for each user.

For action URLs, there is also the additional name attribute that allows you to set the javax. Java Portlet Specification V2.

After you click a link in the navigator portlet that sets the docid oortlet document3, the content portlet displays the content of that document because its view state the ID of the current document has been changed from an external influence.

The Web Services for Remote Portlets specification defines a web service interface for accessing and interacting with interactive presentation-oriented web services. Public render parameters allow sharing of request parameters across different portlets or other artifacts, like themes or portal pages spefification IBM WebSphere Portal.

Java Portlet Specification

With the help of Ajax we can avoid render all portlets in page. For example, the portlet can set ;ortlet HTTP status code. The RI will be implemented inside the secification source project Pluto at Apache. You can view these public render parameters as a shared storage area where all participating portlets can set and get the values. Most portlet API objects, for example, portlet session or portlet preferences, do implicit namespacing, but you need to do explicit namespacing when you access shared data stores or want to assign unique IDs to output elements.


Java Portlet Specification 2.0 (JSR 286) Support

QNames are the mechanism for using unique names in XML; they also have a Java representation as the standard library class javax. The JSRspeciflcation, stopped at defining the overall UI component model and did not define any means for building integrated composite applications out jdr these components. Here another method added in lifecycle so that it send or publish the events and when page render respective listener portlets receive the dada or events.

You specify a unique QName and optional alias names in the portlet.

It allows you to define a short expiration time so that your portlet gets called often and can check for changes in the back-end system. The JSR specification demanded that portlet containers must invalidate the cache for each user interaction with a portlet render or action URLso that there could be only a single portleet entry per portlet window and user.

Portlet Specification, Version 1. View image at full size. Serving static resources using the portlet’s serveResource method causes unnecessary performance overhead. This design point means that all portlets written against the V1.

Specifying the shared property enables the portal to use only one version of such shared resources per page.