This Presentation was shown by Chandan Sharma in LIUG Bangalore.

1. Effective use of Spring in Liferay
Chandan Sharma

2.  Why use Framework (Spring)
 Use of Spring Framework in Liferay
 How can we use Spring in Liferay
 Pros and Cons
 Q n A
Effective use of Spring in Liferay

3.  Framework take care of infrastructure and let
you focus on your unique functionality.
 Spring is one of the popular framework.
 Flexible and Lightweight
 Spring MVC is Request Oriented web
framework
 Spring provides many sub frameworks to
make development easier Like IOC, AOP,
Spring Portlet MVC framework etc.
Effective use of Spring in Liferay

4.  Include support for numerous common view
technologies :
◦ JSP, JSTL, XSLT, Velocity, FreeMarker, Tiles, PDF,
Excel, JasperReport
 Easy to implement new view Technologies
 Interceptors for wrapping other concerns
around controller execution (AOP)
 Exception Resolvers to catch exception
coming out of controllers and mapping to
appropriate views
Effective use of Spring in Liferay

5.  Liferay Uses Spring in many modules
◦ Spring.configs in portal.properties
 Service builder generates code and
configuration of Spring for using the service
layer
◦ Injecting Dependency in service layer
◦ Hibernate
◦ Infrastructure
◦ Workflow
◦ Mail
◦ Memchached and more….
Effective use of Spring in Liferay

6.  Using Spring Portlet MVC
 We can create our own service layer or
override the Liferay Existing Spring
configuration
◦ When we use multiple database from the same
portal
◦ When we are writing the Junit Test cases for Service
Layer
◦ Use in hook and Ext based on configuration change
And More…
Effective use of Spring in Liferay

7.  Any Spring Programmer can use easily no
more learning required
 Spring IOC take care of object Lifecycle
 Get the power of annotation and sub module
 Spring MVC portlet Framwork provide
configuration based portlet we can map more
than one controller to one portlet
 Multiple view technologies can be used easily
 Use Intercepters using AOP at any layer using
xml configuration
Effective use of Spring in Liferay

8.  Learning of new Framwork
 In Liferay you cannot inject any depencies
from the Spring MVC context into beans held
in the ServiceBuilder context. Becaues of
context are different
 If you are using Liferay Service Builder then
you have to use XXXLocalServiceUtil()
 Some of the Portlet mode is not implemented
in Spring MVC portlet like Help and About.
Effective use of Spring in Liferay

9.  Portlet in Action
 Spring in Action
 http://static.springsource.org/spring/docs/3
.0.x/reference/portlet.html
 Useful Blogs
Effective use of Spring in Liferay

10. Effective use of Spring in Liferay
Chandan Sharma
chandansharmamca@gmail.com
http://chandansharmamca.wordpress.com