public class HandlerMethodArgumentResolverComposite extends Object implements HandlerMethodArgumentResolver
HandlerMethodArgumentResolvers
.
Previously resolved method parameters are cached for faster lookups.Constructor and Description |
---|
HandlerMethodArgumentResolverComposite() |
Modifier and Type | Method and Description |
---|---|
HandlerMethodArgumentResolverComposite |
addResolver(HandlerMethodArgumentResolver resolver)
Add the given
HandlerMethodArgumentResolver . |
HandlerMethodArgumentResolverComposite |
addResolvers(HandlerMethodArgumentResolver... resolvers)
Add the given
HandlerMethodArgumentResolvers . |
HandlerMethodArgumentResolverComposite |
addResolvers(List<? extends HandlerMethodArgumentResolver> resolvers)
Add the given
HandlerMethodArgumentResolvers . |
void |
clear()
Clear the list of configured resolvers and the resolver cache.
|
List<HandlerMethodArgumentResolver> |
getResolvers()
Return a read-only list with the contained resolvers, or an empty list.
|
Object |
resolveArgument(org.springframework.core.MethodParameter parameter,
Message<?> message)
Iterate over registered
HandlerMethodArgumentResolvers
and invoke the one that supports it. |
boolean |
supportsParameter(org.springframework.core.MethodParameter parameter)
Whether the given method parameter is
supported by any registered
HandlerMethodArgumentResolver . |
public HandlerMethodArgumentResolverComposite()
public HandlerMethodArgumentResolverComposite addResolver(HandlerMethodArgumentResolver resolver)
HandlerMethodArgumentResolver
.public HandlerMethodArgumentResolverComposite addResolvers(@Nullable HandlerMethodArgumentResolver... resolvers)
HandlerMethodArgumentResolvers
.public HandlerMethodArgumentResolverComposite addResolvers(@Nullable List<? extends HandlerMethodArgumentResolver> resolvers)
HandlerMethodArgumentResolvers
.public List<HandlerMethodArgumentResolver> getResolvers()
public void clear()
public boolean supportsParameter(org.springframework.core.MethodParameter parameter)
HandlerMethodArgumentResolver
.supportsParameter
in interface HandlerMethodArgumentResolver
parameter
- the method parameter to checktrue
if this resolver supports the supplied parameter;
false
otherwise@Nullable public Object resolveArgument(org.springframework.core.MethodParameter parameter, Message<?> message) throws Exception
HandlerMethodArgumentResolvers
and invoke the one that supports it.resolveArgument
in interface HandlerMethodArgumentResolver
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 messagenull
IllegalArgumentException
- if no suitable argument resolver is foundException
- in case of errors with the preparation of argument values