org.springframework.mobile.device
Class DeviceResolverHandlerInterceptor

java.lang.Object
  org.springframework.web.servlet.handler.HandlerInterceptorAdapter
      org.springframework.mobile.device.DeviceResolverHandlerInterceptor

All Implemented Interfaces:

org.springframework.web.servlet.HandlerInterceptor

public class DeviceResolverHandlerInterceptor
extends org.springframework.web.servlet.handler.HandlerInterceptorAdapter

A Spring MVC interceptor that resolves the Device that originated the web request before any request handler is invoked. The resolved Device is exported as a request attribute under the well-known name of DeviceUtils.CURRENT_DEVICE_ATTRIBUTE. Request handlers such as @Controllers and views may then access the currentDevice to vary their control and rendering logic, respectively.

Author:

Keith Donald

Constructor Summary

DeviceResolverHandlerInterceptor()
Create a device resolving HandlerInterceptor that defaults to a LiteDeviceResolver implementation.

DeviceResolverHandlerInterceptor(DeviceResolver deviceResolver)
Create a device resolving HandlerInterceptor.

Method Summary

boolean

preHandle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.Object handler)

Methods inherited from class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

afterCompletion, postHandle

Methods inherited from class java.lang.Object

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

Constructor Detail

DeviceResolverHandlerInterceptor

public DeviceResolverHandlerInterceptor()

Create a device resolving HandlerInterceptor that defaults to a LiteDeviceResolver implementation.

DeviceResolverHandlerInterceptor

public DeviceResolverHandlerInterceptor(DeviceResolver deviceResolver)

Create a device resolving HandlerInterceptor.

Parameters:

deviceResolver - the device resolver to delegate to in preHandle(HttpServletRequest, HttpServletResponse, Object).

Method Detail

preHandle

public boolean preHandle(javax.servlet.http.HttpServletRequest request,
                         javax.servlet.http.HttpServletResponse response,
                         java.lang.Object handler)
                  throws java.lang.Exception

Specified by:

preHandle in interface org.springframework.web.servlet.HandlerInterceptor

Overrides:

preHandle in class org.springframework.web.servlet.handler.HandlerInterceptorAdapter

Throws:

java.lang.Exception