PrincipalMethodArgumentResolver (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.messaging.simp.annotation.support.PrincipalMethodArgumentResolver

All Implemented Interfaces:: HandlerMethodArgumentResolver

public class PrincipalMethodArgumentResolver
extends Object
implements HandlerMethodArgumentResolver

Since:: 4.0
Author:: Rossen Stoyanchev

Constructor Summary
Constructors
Constructor Description
PrincipalMethodArgumentResolver()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`resolveArgument(MethodParameter parameter, Message<?> message)`	Resolves a method parameter into an argument value from a given message.
`boolean`	`supportsParameter(MethodParameter parameter)`	Whether the given method parameter is supported by this resolver.

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

- Constructor Detail
  - PrincipalMethodArgumentResolver
```
public PrincipalMethodArgumentResolver()
```
- Method Detail
  - supportsParameter
```
public boolean supportsParameter(MethodParameter parameter)
```
    Description copied from interface: HandlerMethodArgumentResolver
    Whether the given method parameter is supported by this resolver.
    Specified by:
    supportsParameter in interface HandlerMethodArgumentResolver
    Parameters:
    parameter - the method parameter to check
    Returns:
    true if this resolver supports the supplied parameter; false otherwise
  - resolveArgument
```
public Object resolveArgument(MethodParameter parameter,
                              Message<?> message)
                       throws Exception
```
    Description copied from interface: HandlerMethodArgumentResolver
    Resolves a method parameter into an argument value from a given message.
    Specified by:
    resolveArgument in interface HandlerMethodArgumentResolver
    Parameters:
    parameter - the method parameter to resolve. This parameter must have previously been passed to HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter) which must have returned true.
    message - the currently processed message
    Returns:
    the resolved argument value, or null
    Throws:
    Exception - in case of errors with the preparation of argument values