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Spring / Spring Beans

Different Spring Bean Scope.

1. singleton : Returns a single bean instance per Spring IOC container.(default scope)
2. prototype : Returns a new bean instance each time when requested.
3. request : Returns a single bean instance per HTTP request.
4. session : Returns a single bean instance per HTTP session.
5. global session : Return a single bean instance per global HTTP session and only valid when used in portlet context.

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