io.jmix.core.impl.method

Interface MethodArgumentResolver

All Known Subinterfaces:

ArgumentResolverComposite

All Known Implementing Classes:

BeanArgumentResolver, CachedArgumentResolverComposite, ContextArgumentResolverComposite, LocaleArgumentResolver, MethodArgumentResolverComposite, TypedArgumentResolver, UserArgumentResolver

public interface MethodArgumentResolver

Strategy interface to handle the value returned from the invocation of a handler method .

Method Summary

Modifier and Type	Method and Description
java.lang.Object	resolveArgument(org.springframework.core.MethodParameter parameter) Resolves a method parameter into an argument value.
boolean	supportsParameter(org.springframework.core.MethodParameter parameter) Whether the given method parameter is supported by this resolver.

Method Detail

supportsParameter

boolean supportsParameter(org.springframework.core.MethodParameter parameter)

Whether the given method parameter is supported by this resolver.

Parameters:

parameter - the method parameter to check

Returns:

true if this resolver supports the supplied parameter; false otherwise

resolveArgument

@Nullable
java.lang.Object resolveArgument(org.springframework.core.MethodParameter parameter)
                                    throws java.lang.Exception

Resolves a method parameter into an argument value.

Parameters:

parameter - the method parameter to resolve. This parameter must have previously been passed to supportsParameter(org.springframework.core.MethodParameter) which must have returned true.

Returns:

the resolved argument value, or null if not resolvable

Throws:

java.lang.Exception - in case of errors with the preparation of argument values