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FactoryBean, BeanPostProcessor and HandlerInterceptor variants declared with default methods

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Issue: SPR-14432
This commit is contained in:
Juergen Hoeller
2016-07-06 15:10:08 +02:00
parent e4b0486c5a
commit 76dedd7ca2
8 changed files with 76 additions and 27 deletions
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22
spring-webmvc/src/main/java/org/springframework/web/servlet/HandlerInterceptor.java
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@@ -84,6 +84,7 @@ public interface HandlerInterceptor {
* <p><strong>Note:</strong> special considerations apply for asynchronous
* request processing. For more details see
* {@link org.springframework.web.servlet.AsyncHandlerInterceptor}.
* <p>The default implementation returns {@code true}.
* @param request current HTTP request
* @param response current HTTP response
* @param handler chosen handler to execute, for type and/or instance evaluation
@@ -92,8 +93,11 @@ public interface HandlerInterceptor {
* that this interceptor has already dealt with the response itself.
* @throws Exception in case of errors
*/
boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception;
default boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
return true;
}
/**
* Intercept the execution of a handler. Called after HandlerAdapter actually
@@ -106,6 +110,7 @@ public interface HandlerInterceptor {
* <p><strong>Note:</strong> special considerations apply for asynchronous
* request processing. For more details see
* {@link org.springframework.web.servlet.AsyncHandlerInterceptor}.
* <p>The default implementation is empty.
* @param request current HTTP request
* @param response current HTTP response
* @param handler handler (or {@link HandlerMethod}) that started asynchronous
@@ -114,8 +119,10 @@ public interface HandlerInterceptor {
* (can also be {@code null})
* @throws Exception in case of errors
*/
void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)
throws Exception;
default void postHandle(
HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)
throws Exception {
}
/**
* Callback after completion of request processing, that is, after rendering
@@ -129,6 +136,7 @@ public interface HandlerInterceptor {
* <p><strong>Note:</strong> special considerations apply for asynchronous
* request processing. For more details see
* {@link org.springframework.web.servlet.AsyncHandlerInterceptor}.
* <p>The default implementation is empty.
* @param request current HTTP request
* @param response current HTTP response
* @param handler handler (or {@link HandlerMethod}) that started asynchronous
@@ -136,7 +144,9 @@ public interface HandlerInterceptor {
* @param ex exception thrown on handler execution, if any
* @throws Exception in case of errors
*/
void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
throws Exception;
default void afterCompletion(
HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
throws Exception {
}
}