Struts

Concept of ValueStack in Struts2.0 Framework
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Struts 2 framework introduce concept of  ValueStack. The ValueStack is an Object i.e created by framework of each request to store all the data required in processing of the request all the components participating in request processing referred a valuestack for storing and obtaining data. This object has a special feature. It expose property of Object add to it as the properties of ii on.

 The valuestack object facilitation non-programmatic access to the data of valustack an expression language called OGNL(Object Graphic navigation language) is provided by framework.


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