Class InvocableHandlerMethodSupport

java.lang.Object

org.springframework.graphql.data.method.HandlerMethod

org.springframework.graphql.data.method.InvocableHandlerMethodSupport

Direct Known Subclasses:

BatchLoaderHandlerMethod, DataFetcherHandlerMethodSupport

public abstract class InvocableHandlerMethodSupport
extends HandlerMethod

Extension of HandlerMethod that adds support for invoking the underlying handler methods.

Since:

1.0.0

Author:

Rossen Stoyanchev

Nested Class Summary

Nested classes/interfaces inherited from class HandlerMethod

HandlerMethod.HandlerMethodParameter

Field Summary

Fields inherited from class HandlerMethod

logger

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	InvocableHandlerMethodSupport(HandlerMethod handlerMethod, @Nullable Executor executor)	Deprecated, for removal: This API element is subject to removal in a future version. in favor of alternative constructor
protected	InvocableHandlerMethodSupport(HandlerMethod handlerMethod, @Nullable Executor executor, boolean invokeAsync)	Create an instance.

Method Summary

Modifier and Type	Method	Description
protected @Nullable Object	doInvoke(graphql.GraphQLContext graphQLContext, @Nullable Object... argValues)	Invoke the handler method with the given argument values.
protected reactor.core.publisher.Mono<@Nullable Object[]>	toArgsMono(@Nullable Object[] args)	Use this method to resolve the arguments asynchronously.

Methods inherited from class HandlerMethod

assertTargetBean, createWithResolvedBean, equals, findProvidedArgument, formatArgumentError, formatInvokeError, getBean, getBeanType, getBridgedMethod, getMethod, getMethodAnnotation, getMethodParameters, getReturnType, getReturnValueType, getShortLogMessage, hashCode, hasMethodAnnotation, isVoid, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

InvocableHandlerMethodSupport

@Deprecated(since="1.3.0",
            forRemoval=true)
protected InvocableHandlerMethodSupport(HandlerMethod handlerMethod,
 @Nullable Executor executor)

Deprecated, for removal: This API element is subject to removal in a future version.

in favor of alternative constructor

Create an instance.

Parameters:

handlerMethod - the controller method

executor - an Executor to use for Callable return values

InvocableHandlerMethodSupport

protected InvocableHandlerMethodSupport(HandlerMethod handlerMethod,
 @Nullable Executor executor,
 boolean invokeAsync)

Create an instance.

Parameters:

handlerMethod - the controller method

executor - an Executor to use for Callable return values

invokeAsync - whether to invoke the method through the Executor

Since:

1.3.0

Method Details

doInvoke

protected @Nullable Object doInvoke(graphql.GraphQLContext graphQLContext,
 @Nullable Object... argValues)

Invoke the handler method with the given argument values.

Parameters:

graphQLContext - the GraphQL context for this data fetching operation

argValues - the values to use to invoke the method

Returns:

the value returned from the method or a Mono<Throwable> if the invocation fails.

toArgsMono

protected reactor.core.publisher.Mono<@Nullable Object[]> toArgsMono(@Nullable Object[] args)

Use this method to resolve the arguments asynchronously. This is only useful when at least one of the values is a Mono

Parameters:

args - the arguments to be resolved asynchronously