Build Web Service layer on top of existing JSF & EJB web application
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Posted By:   muskaan20
Posted On:   Tuesday, June 25, 2013 06:45 AM

I have a legacy application built on Java, JSF, EJB & JDBC. I have Business logic layer (BLL) implemented as Stateless session beans & Data Access Layer (DAL) layer having DAO using JDBC.   JSP – JSF Backing bean – Business delegate – Stateless Session Bean – DAO – JDBC   Now, I would like to abstract and reuse the existing BLL & DAL layers and expose web service interfaces with maximum reuse of existing code. This is because I need to allow these services to be used by different mobile devices. 1)       What are the best practices and design consideration I need to take care of?    More>>

I have a legacy application built on Java, JSF, EJB & JDBC. I have Business logic layer (BLL) implemented as Stateless session beans & Data Access Layer (DAL) layer having DAO using JDBC.

 

JSP – JSF Backing bean – Business delegate – Stateless Session Bean – DAO – JDBC

 

Now, I would like to abstract and reuse the existing BLL & DAL layers and expose web service interfaces with maximum reuse of existing code. This is because I need to allow these services to be used by different mobile devices.

1)      
What are the best practices and design consideration I need to take care of?

2)       2)   How I can ensure maximum code reuse?

3) 3)       I am more inclined towards using RESTful web services instead of Soap based webservices. What are the issues/risks, I need to take care of?

  Any pointers are greatly appreciated.

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