Webservice call from one application to another application

Hi all,
I am new in ADF and using jdeveloper version 11.1.1.0.0. Now I am working in an application where my steps are as follows,
i have two application take as App1 and App2 .i want to make a webservice call from App1 to App2 . through this webservice call i will pull the data from App2 and populate the data inside a .jspx file.
i am not understanding how i will do that.
please give your useful comments.

Hi,
i have two application take as App1 and App2 .i want to make a webservice call from App1 to App2 . through this webservice call i will pull the data from App2 and populate the data inside a .jspx file.
i am not understanding how i will do that.
A service wont allow you to access the live instance of an application and instead create its own data session. So while you can query data that belongs to App2, you wont be able e.g. to access a users uncommitted data changes
Frank

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