java.lang.Object
- org.springframework.web.servlet.mvc.method.annotation.ModelAndViewMethodReturnValueHandler

All Implemented Interfaces:
HandlerMethodReturnValueHandler
```
public class ModelAndViewMethodReturnValueHandler
extends Object
implements HandlerMethodReturnValueHandler
```
Handles return values of type ModelAndView copying view and model information to the ModelAndViewContainer.
If the return value is null, the ModelAndViewContainer.setRequestHandled(boolean) flag is set to true to indicate the request was handled directly.
A ModelAndView return type has a set purpose. Therefore this handler should be configured ahead of handlers that support any return value type annotated with @ModelAttribute or @ResponseBody to ensure they don't take over.
Since:
3.1
Author:
Rossen Stoyanchev

Constructor Summary
Constructors
Constructor Description
ModelAndViewMethodReturnValueHandler()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String[]`	`getRedirectPatterns()`	Return the configured redirect patterns, if any.
`void`	`handleReturnValue(Object returnValue, MethodParameter returnType, ModelAndViewContainer mavContainer, NativeWebRequest webRequest)`	Handle the given return value by adding attributes to the model and setting a view or setting the `ModelAndViewContainer.setRequestHandled(boolean)` flag to `true` to indicate the response has been handled directly.
`protected boolean`	`isRedirectViewName(String viewName)`	Whether the given view name is a redirect view reference.
`void`	`setRedirectPatterns(String... redirectPatterns)`	Configure one more simple patterns (as described in `PatternMatchUtils.simpleMatch(java.lang.String, java.lang.String)`) to use in order to recognize custom redirect prefixes in addition to "redirect:".
`boolean`	`supportsReturnType(MethodParameter returnType)`	Whether the given method return type is supported by this handler.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ModelAndViewMethodReturnValueHandler
```
public ModelAndViewMethodReturnValueHandler()
```
- Method Detail
  - setRedirectPatterns
```
public void setRedirectPatterns(String... redirectPatterns)
```
    Configure one more simple patterns (as described in PatternMatchUtils.simpleMatch(java.lang.String, java.lang.String)) to use in order to recognize custom redirect prefixes in addition to "redirect:".
    Note that simply configuring this property will not make a custom redirect prefix work. There must be a custom View that recognizes the prefix as well.
    Since:
    4.1
  - getRedirectPatterns
```
public String[] getRedirectPatterns()
```
    Return the configured redirect patterns, if any.
    Since:
    4.1
  - supportsReturnType
```
public boolean supportsReturnType(MethodParameter returnType)
```
    Description copied from interface: HandlerMethodReturnValueHandler
    Whether the given method return type is supported by this handler.
    Specified by:
    supportsReturnType in interface HandlerMethodReturnValueHandler
    Parameters:
    returnType - the method return type to check
    Returns:
    true if this handler supports the supplied return type; false otherwise
  - handleReturnValue
```
public void handleReturnValue(Object returnValue,
                              MethodParameter returnType,
                              ModelAndViewContainer mavContainer,
                              NativeWebRequest webRequest)
                       throws Exception
```
    Description copied from interface: HandlerMethodReturnValueHandler
    Handle the given return value by adding attributes to the model and setting a view or setting the ModelAndViewContainer.setRequestHandled(boolean) flag to true to indicate the response has been handled directly.
    Specified by:
    handleReturnValue in interface HandlerMethodReturnValueHandler
    Parameters:
    returnValue - the value returned from the handler method
    returnType - the type of the return value. This type must have previously been passed to HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter) which must have returned true.
    mavContainer - the ModelAndViewContainer for the current request
    webRequest - the current request
    Throws:
    Exception - if the return value handling results in an error
  - isRedirectViewName
```
protected boolean isRedirectViewName(String viewName)
```
    Whether the given view name is a redirect view reference. The default implementation checks the configured redirect patterns and also if the view name starts with the "redirect:" prefix.
    Parameters:
    viewName - the view name to check, never null
    Returns:
    "true" if the given view name is recognized as a redirect view reference; "false" otherwise.

Class ModelAndViewMethodReturnValueHandler

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ModelAndViewMethodReturnValueHandler

Method Detail

setRedirectPatterns

getRedirectPatterns

supportsReturnType

handleReturnValue

isRedirectViewName