Package org.springframework.graphql.data.method.annotation.support

Class ArgumentsMethodArgumentResolver

java.lang.Object

org.springframework.graphql.data.method.annotation.support.ArgumentsMethodArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver

public class ArgumentsMethodArgumentResolver
extends Object
implements HandlerMethodArgumentResolver

Resolver for a method parameter that is annotated with @Arguments, similar to what ArgumentMethodArgumentResolver does but using the full full GraphQL arguments map as the source for binding to the target Object rather than a specific argument value within it.

Since:

1.0.0

Author:

Rossen Stoyanchev

See Also:

• Arguments
• Argument
• GraphQlArgumentBinder

Constructor Summary

Constructors

Constructor	Description
ArgumentsMethodArgumentResolver(GraphQlArgumentBinder argumentBinder)

Method Summary

Modifier and Type	Method	Description
Object	resolveArgument(MethodParameter parameter, DataFetchingEnvironment environment)	Resolve a method parameter to a value.
boolean	supportsParameter(MethodParameter parameter)	Whether this resolver supports the given MethodParameter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ArgumentsMethodArgumentResolver

public ArgumentsMethodArgumentResolver(GraphQlArgumentBinder argumentBinder)

Method Details

supportsParameter

public boolean supportsParameter(MethodParameter parameter)

Description copied from interface: HandlerMethodArgumentResolver

Whether this resolver supports the given MethodParameter.

Specified by:

supportsParameter in interface HandlerMethodArgumentResolver

Parameters:

parameter - the method parameter to check for support

resolveArgument

public Object resolveArgument(MethodParameter parameter,
 DataFetchingEnvironment environment)
                       throws Exception

Description copied from interface: HandlerMethodArgumentResolver

Resolve a method parameter to a value.

Specified by:

resolveArgument in interface HandlerMethodArgumentResolver

Parameters:

parameter - the method parameter to resolve. This parameter must have previously checked via HandlerMethodArgumentResolver.supportsParameter(org.springframework.core.MethodParameter).

environment - the environment to use to resolve the value

Returns:

the resolved value, which may be null if not resolved; the value may also be a Mono if it requires asynchronous resolution.

Throws:

Exception - in case of errors with the preparation of argument values