org.springframework.web.servlet.theme
Class ThemeChangeInterceptor

java.lang.Object
  org.springframework.web.servlet.handler.HandlerInterceptorAdapter
      org.springframework.web.servlet.theme.ThemeChangeInterceptor

All Implemented Interfaces:

HandlerInterceptor

public class ThemeChangeInterceptor

extends HandlerInterceptorAdapter

Interceptor that allows for changing the current theme on every request, via a configurable request parameter.

Since:

20.06.2003

Author:

Juergen Hoeller

See Also:

ThemeResolver

Field Summary

static java.lang.String

DEFAULT_PARAM_NAME

Constructor Summary

ThemeChangeInterceptor()

Method Summary

boolean	preHandle(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, java.lang.Object handler) Intercept the execution of a handler.
void	setParamName(java.lang.String paramName) Set the name of the parameter that contains a theme specification in a theme change request.

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

Field Detail

DEFAULT_PARAM_NAME

public static final java.lang.String DEFAULT_PARAM_NAME

See Also:

Constant Field Values

Constructor Detail

ThemeChangeInterceptor

public ThemeChangeInterceptor()

Method Detail

setParamName

public void setParamName(java.lang.String paramName)

Set the name of the parameter that contains a theme specification in a theme change request. Default is "theme".

preHandle

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

Description copied from interface: HandlerInterceptor

Intercept the execution of a handler. Called after HandlerMapping determined an appropriate handler object, but before HandlerAdapter invokes the handler.

DispatcherServlet processes a handler in an execution chain, consisting of any number of interceptors, with the handler itself at the end. With this method, each interceptor can decide to abort the execution chain, typically sending a HTTP error or writing a custom response.

Specified by:

preHandle in interface HandlerInterceptor

Overrides:

preHandle in class HandlerInterceptorAdapter

Throws:

javax.servlet.ServletException