Is there any advantages of using SessionMap over Map for a session in web application ?
1 advantage I found was you can invalidate a SessionMap but not Map.
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Roman C
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Pratik Shah
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2SessionMap is managed by struts2, if you use Map then you have to manage at your end and its really painful to reinvent the wheel :) – Noman ali abbasi Dec 13 '13 at 10:36
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If you are using it to keep a user's session, then definitely `SessionMap`. – Nishan Dec 13 '13 at 10:37
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2There is no need to add the major tag in the title. – Andrew Thompson Dec 13 '13 at 10:46
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okay @Nomanaliabbasi is there any more advantages? – Pratik Shah Dec 13 '13 at 10:50
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basically SessionMap is use to manage session in struts2, you can store/retrieve/remove and off course invalidate your session object, Map is core java feature to storing your data as key/value nothing much. – Noman ali abbasi Dec 13 '13 at 11:07
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The SessionMap is specifically designed for the purposes if you want to have access to the servlet session attributes. So, the user is able to keep a synchronized collection of objects in session and use it instead of HttpSession directly.
This object is automatically injected by the servletConfig interceptor which is a part of the defaultStack if you implement SessionAware interface in the action class.
As soon as you don't need to work with servlet session directly and don't have access to it you can at least invalidate a session that finalizes the collection of objects in it.
A new session map required to action context if you want to continue to use a session.
Roman C
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Hi! I've already read the documentation and some articles on the web, and I always read that sessionMaps store the session attributes. But what attributes are these? – Luciane Dec 20 '13 at 15:59
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The session map is used to store your attributes, that are stored in the http session as attributes, not in the reverse order. – Roman C Dec 20 '13 at 16:09
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