net.sourceforge.stripes.controller
Class HttpCacheInterceptor

java.lang.Object
  net.sourceforge.stripes.controller.HttpCacheInterceptor

All Implemented Interfaces:

Interceptor

@Intercepts(value=ResolutionExecution)
public class HttpCacheInterceptor
extends Object
implements Interceptor

Looks for an HttpCache annotation on the event handler method, the ActionBean class or the ActionBean's superclasses. If an HttpCache is found, then the appropriate response headers are set to control client-side caching.

Since:

Stripes 1.5

Author:

Ben Gunter

Constructor Summary

HttpCacheInterceptor()

Method Summary

protected HttpCache	getAnnotation(Method method, Class<? extends ActionBean> beanClass) Look for a HttpCache annotation on the method first and then on the class and its superclasses.
Resolution	intercept(ExecutionContext ctx) Invoked when intercepting the flow of execution.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HttpCacheInterceptor

public HttpCacheInterceptor()

Method Detail

intercept

public Resolution intercept(ExecutionContext ctx)
                     throws Exception

Description copied from interface: Interceptor

Invoked when intercepting the flow of execution.

Specified by:

intercept in interface Interceptor

Parameters:

ctx - the ExecutionContext of the request currently being processed

Returns:

the result of calling context.proceed(), or if the interceptor wishes to change the flow of execution, a Resolution

Throws:

Exception - if any non-recoverable errors occur

getAnnotation

protected HttpCache getAnnotation(Method method,
                                  Class<? extends ActionBean> beanClass)

Look for a HttpCache annotation on the method first and then on the class and its superclasses.

Parameters:

method - an event handler method

beanClass - the class to inspect for annotations if none is found on the method

Returns:

The first HttpCache annotation found. If none is found then null.