Session presented at the 2nd IndicThreads.com Conference on Cloud Computing held in Pune, India on 3-4 June 2011. http://CloudComputing.IndicThreads.com

1. Gigapaces PAAS For Cloud Based Java Applications Karan Nangru Xebia IT Architects

3. The Tier Based Architecture

4. Cache A Typical Tier Scenario

5. The Tier Based Architecture Tier integration impacts scalability, performance, and reliability

6. The Gigaspaces Architecture A single model for full life cycle enterprise systems

7. From J2EE to XAP Component J2EE XAP Persistency JPA Hibernate, JPA Messaging JMS,MDB JMS, Polling/Notify Container , Native Messaging API Security JAAS, SSL Spring Security, SSL Web Session Management HttpSession HttpSession (via Jetty) Transaction Management JTA Spring Transaction via Jini Transaction Manager Data Access JDBC , Session Bean, Entity Bean JDBC, Space, JPA Remoting EJB, IIOP, RMI Spring remoting over LRMI Web Servlet, JSP Servlet, JSP (via Jetty) Packaging and deployment ear , war jar , war Contexts and Dependency Injection JSR 299 Spring IOC System Management JMX JMX , SNMP, Native Admin API Java Naming and Directory Service JNDI Jini Lookup Service

10. Space Based Architecture – Scaling Diagram 1. Car wash, the tier based way: a different warehouse for each step in the process.

11. Space Based Architecture – The Unit System Diagram 2. An all-in-one "washing unit" containing soaping, watering and drying services.

12. Space Based Architecture – Multiple Units Diagram 3. Scaling the system by adding more "car washing units"

13. Space Based Architecture – A GigaSpaces Processing Unit Diagram 4. A Processing Unit with 3 services collocated with a space.

16. HTTP Session Management

25. @references - Gigaspaces