To enable interoperability between Portlets and Portals, this specification will define a set of APIs for Updates to the Original Java Specification Request ( JSR). The Java platform provides an standard referred to as JSR that standarizes how portlets interact with portlet containers and ensures compatibility across. The Java Standardization Request (JSR ) defines a portlet specification, including a contract Enables interoperability among portlets and portals.

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One common problem is with versions of Apache Tomcat prior to 5. Writing JSR portlets lets you become portal agnostic and lets vendors support a wider spectrum of platforms with little to no code changes. One of the most common public examples of a portal site is my. A Java portlet resembles a Java Servletbut produces fragments rather than complete documents, and is not bound by a URL. Caching content helps improve the Portal response time for users.

The Portlet specification will be designed leveraging the following technologies: Provide Administrators with a mechanism to specify the folder to display and connection information for Documentum.

Usually, many Portlets are invoked to in the single request of a Portal page. If this specification, or a future version of this specification, is included in nsr future version of a Java platform specification, this specification will remain available for use outside potrlets platform specification, and will continue to be evolved outside the platform specification, unless both specification leads agree otherwise.

Ted and Martin are senior technologists at Wingspan Technology. To reach this target the following schedule may be used as starting point: Remote cache is only applicable to Websphere Portal. This is not just a good idea out of consideration for the other portlets on the page, but it can greatly ease debugging efforts.


The DocumentumSource class is not shown, but all it does is portletd DQL queries return a list of documents or a single document for the abstract ContentSource methods.

It also provides persistent storage mechanisms for the portlet preferences. This way, there portletw be SharePointSourceJdbcSourceand the like, and the administrator can change the source without any recompiling.

The Java Community Process(SM) Program – JSRs: Java Specification Requests – detail JSR#

Used in the xml: The PublishedFolder class implements the interface that the portal uses to communicate with the portlet, and controls the activation of the JSP file. Initialization Parameters Property Name Description Initialization Specifies the initialization parameters of the portlet. Now, as portal vendors begin to support the Java Specification Request http: The Expert Group will evaluate defining a Credential mapping service to allow the Portal application to access resources in other applications not supporting the notion of distributed sessions- on behalf of user.

The Portlet specification will define a Portlet API that provides means for aggregating several content sources and applications front ends. However, this could be enhanced to use a class loader to instantiate the implementing class based on a property file setting.

Java Portlet Specification

A Map would have required a separate mechanism for ordering the keys. For those who want to adopt portals certainly need many and variety of portlets to deploy and run.

A third possible enhancement deals with the configuration challenge mentioned previously. Portlet standards platform independent application programming interfaces that are intended to enable software developers to create portlets that can be plugged into any portal supporting the standards.


Portlet class Property Name Description Portlet class The canonical name of the podtlets selected in the Portlets list box. Others, however, make that optional or leave it as a function jjsr a custom portlet must implement.

Select a parameter and click the Edit button to update the parameter and its value. Only one title per locale is allowed. January Learn how and when to remove this template message. For deployers, it’s easy to keep a single set of solution and deploy it on many. Limit additional libraries that must be shipped with the pkrtlets.

Developing JSR-168 Portlets

They provide the real content that the end user is looking for. A portal is a web application whose primary purpose is to aggregate web content in portlets.

Portlets are the meat within the portal. Supported Locales Declare locales the portlet supports at run time. It used to be that if you wanted to migrate portlet functionality from one portal to another, you would have to rewrite massive amounts of code. Unsourced material may be challenged and removed. This will set the expiration property to 0.

JSR IBM extension for cooperative portlets

An example is the Java Portlet Specification. Porylets the following portlet information for each supported locale. First, there is no business logic. While a portal may also provide user management and authentication, personalization, and other functionality across portlets, the role we focus on is the portlet container.