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

All Implemented Interfaces:
AsyncHandlerInterceptor, HandlerInterceptor
```
public class ThemeChangeInterceptor
extends HandlerInterceptorAdapter
```
Interceptor that allows for changing the current theme on every request, via a configurable request parameter (default parameter name: "theme").
Since:
20.06.2003
Author:
Juergen Hoeller
See Also:
ThemeResolver

Field Summary
Fields
Modifier and Type Field Description
static String DEFAULT_PARAM_NAME
Default name of the theme specification parameter: "theme".

Constructor Summary
Constructors
Constructor Description
ThemeChangeInterceptor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getParamName()`	Return the name of the parameter that contains a theme specification in a theme change request.
`boolean`	`preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)`	This implementation always returns `true`.
`void`	`setParamName(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, afterConcurrentHandlingStarted, 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 String DEFAULT_PARAM_NAME
```
    Default name of the theme specification parameter: "theme".
    See Also:
    Constant Field Values
- Constructor Detail
  - ThemeChangeInterceptor
```
public ThemeChangeInterceptor()
```
- Method Detail
  - setParamName
```
public void setParamName(String paramName)
```
    Set the name of the parameter that contains a theme specification in a theme change request. Default is "theme".
  - getParamName
```
public String getParamName()
```
    Return the name of the parameter that contains a theme specification in a theme change request.
  - preHandle
```
public boolean preHandle(HttpServletRequest request,
                         HttpServletResponse response,
                         Object handler)
                  throws ServletException
```
    Description copied from class: HandlerInterceptorAdapter
    This implementation always returns true.
    Specified by:
    preHandle in interface HandlerInterceptor
    Overrides:
    preHandle in class HandlerInterceptorAdapter
    Parameters:
    request - current HTTP request
    response - current HTTP response
    handler - chosen handler to execute, for type and/or instance evaluation
    Returns:
    true if the execution chain should proceed with the next interceptor or the handler itself. Else, DispatcherServlet assumes that this interceptor has already dealt with the response itself.
    Throws:
    ServletException

Class ThemeChangeInterceptor

Field Summary

Constructor Summary

Method Summary

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

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_PARAM_NAME

Constructor Detail

ThemeChangeInterceptor

Method Detail

setParamName

getParamName

preHandle