Messaging Middleware
Messaging Middleware:
A messaging server is a middleware program that handles messages that are sent for use by other programs using a messaging application program interface (API). A messaging server can usually queue and prioritize messages as needed and saves each of the client programs from having to perform these services. Messaging and messaging servers usually are organized in one or both of two models: point-to-point messaging and subscribe/publish messaging.
From: http://searchwinit.techtarget.com/gDefinition/0,294236,sid1_gci214556,00.html
JetSpeed
Jetspeed is an Open Source implementation of an Enterprise Information Portal, using Java and XML. A portal makes network resources (applications, databases and so forth) available to end-users. The user can access the portal via a web browser, WAP-phone, pager or any other device. Jetspeed acts as the central hub where information from multiple sources are made available in an easy to use manner.
The data presented via Jetspeed is independent of content type, This means that content from for example XML,RSS or SMTP can be integrated with Jetspeed. The actual presentation of the data is handled via ates XSL and delivered to the user for example via the combination of Java Server Pages (JSPs) and HTML. Jetspeed provides support for templating and content publication frameworks such as Cocoon, WebMacro and Velocity. Note that outside of regualar browser Jetspeed also supports WAP devices.
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JetSpeed
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