org.springframework.web.servlet.mvc.LastModified |
Known Indirect Subclasses |
Supports last-modified HTTP requests to facilitate content caching.
Same contract as for the Servlet API's getLastModified
method.
Delegated to by a getLastModified(HttpServletRequest, Object)
implementation. By default, any Controller or HttpRequestHandler within Spring's
default framework can implement this interface to enable last-modified checking.
Note: Alternative handler implementation approaches have different
last-modified handling styles. For example, Spring 2.5's annotated controller
approach (using @RequestMapping
) provides last-modified support
through the checkNotModified(String)
method, allowing for last-modified checking within the main handler method.
Public Methods | |||||||||||
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Same contract as for HttpServlet's
getLastModified method. |
Same contract as for HttpServlet's getLastModified
method.
Invoked before request processing.
The return value will be sent to the HTTP client as Last-Modified header, and compared with If-Modified-Since headers that the client sends back. The content will only get regenerated if there has been a modification.
request | current HTTP request |
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