Aliases are used in many situations for example if a component defines a resource by some name and another component want to use that resource by different name suiting to naming of that component aliasing is useful . See following piece of code to make alias of a bean. Here CAdataSource aliased to CBdataSource and then again CBdataSource aliased to AppdataSource.

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Container definition can be spit to the multiple XML files and combined through Import keyword.

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