Is it possible to make web app proactive rather than reactive?

Posted by Ari B. on Stack Overflow See other posts from Stack Overflow or by Ari B.
Published on 2011-01-10T17:30:17Z Indexed on 2011/01/10 17:53 UTC
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Filed under:

java

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web-development

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web-applications

Web applications traditionally follow the request/response cycle, where a request is made by a user or another web app. However, I'm curious if it is possible to make a web app automatically initiate certain tasks upon it's deployment to a app server. For example, let's say we have a web app that retrieves and processes data. Is it possible to configure this app to automatically retrieve and process data when certain criteria are met, rather than needing a request from a user/another web app?

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