Spring Framework 6.1.4 · org.springframework.web.servlet.FlashMapManager

Method Summary

Modifier and Type	Method and Description
public FlashMap	Returns: a FlashMap matching the current request or `null` retrieveAndUpdate(HttpServletRequest the current request request, HttpServletResponse the current response response) Find a FlashMap saved by a previous request that matches to the current request, remove it from underlying storage, and also remove other expired FlashMap instances.
public void	saveOutputFlashMap(FlashMap the FlashMap to save flashMap, HttpServletRequest the current request request, HttpServletResponse the current response response) Save the given FlashMap, in some underlying storage and set the start of its expiration period.

Method Detail

retrieveAndUpdate back to summary

retrieveAndUpdate	back to summary
public FlashMap retrieveAndUpdate(HttpServletRequest request, HttpServletResponse response) Find a FlashMap saved by a previous request that matches to the current request, remove it from underlying storage, and also remove other expired FlashMap instances. This method is invoked in the beginning of every request in contrast to `saveOutputFlashMap`, which is invoked only when there are flash attributes to be saved - i.e. before a redirect. Parameters request:HttpServletRequest the current request response:HttpServletResponse the current response Returns:FlashMap a FlashMap matching the current request or `null` Annotations @Nullable

public FlashMap retrieveAndUpdate(HttpServletRequest request, HttpServletResponse response)

Find a FlashMap saved by a previous request that matches to the current request, remove it from underlying storage, and also remove other expired FlashMap instances.

This method is invoked in the beginning of every request in contrast to saveOutputFlashMap, which is invoked only when there are flash attributes to be saved - i.e. before a redirect.

Parameters

request:HttpServletRequest: the current request
response:HttpServletResponse: the current response

Returns:FlashMap

a FlashMap matching the current request or null

Annotations

@Nullable

saveOutputFlashMap	back to summary
public void saveOutputFlashMap(FlashMap flashMap, HttpServletRequest request, HttpServletResponse response) Save the given FlashMap, in some underlying storage and set the start of its expiration period. Note Invoke this method prior to a redirect in order to allow saving the FlashMap in the HTTP session or in a response cookie before the response is committed. Parameters flashMap:FlashMap the FlashMap to save request:HttpServletRequest the current request response:HttpServletResponse the current response

saveOutputFlashMap

back to summary

public void saveOutputFlashMap(FlashMap flashMap, HttpServletRequest request, HttpServletResponse response)

Save the given FlashMap, in some underlying storage and set the start of its expiration period.

Note

Invoke this method prior to a redirect in order to allow saving the FlashMap in the HTTP session or in a response cookie before the response is committed.

Parameters

flashMap:FlashMap: the FlashMap to save
request:HttpServletRequest: the current request
response:HttpServletResponse: the current response

public Interface FlashMapManager

Method Summary

Method Detail