Aware Interfaces of struts 2

In struts2 we don’t have any http specific objects by default just like in servlets.  If at all we want any http related objects in our Action class then we need to implement our Action class from Aware Interfaces provided by struts framework.

We can say here frame work using one form of dependancy injection of type interface for injecting required objects into an Action class of struts2.

Struts 2 provided total of 5 Aware Interfaces

• ApplicationAware Interface
• SessionAware Interface
• ServletRequestAware Interface
• ServletResponseAware Interface
• ParameterAware Interface

Every Aware interface provides a setter method, so we must override that setter method while implementing the particular Aware interface, at run time struts 2 controller will automatically calls that setter method and injects the required object into that Action class

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::. About the Author .::
		Sivateja Kandula - Java/J2EE Full Stack Developer Founder of Java4s - Get It Yourself, A popular Java/J2EE Programming Blog, Love Java and UI frameworks. You can sign-up for the Email Newsletter for your daily dose of Java tutorials.