io.smallrye.graphql.execution.datafetcher

Class PublisherDataFetcher<K,T>

java.lang.Object

io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher<K,T>

io.smallrye.graphql.execution.datafetcher.PublisherDataFetcher<K,T>

Type Parameters:

K -

T -

All Implemented Interfaces:

graphql.schema.DataFetcher<T>, org.dataloader.BatchLoaderWithContext<K,T>

public class PublisherDataFetcher<K,T>
extends AbstractDataFetcher<K,T>

Handle Stream calls with Publisher

Author:

Phillip Kruger (phillip.kruger@redhat.com)

Field Summary

Fields inherited from class io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher

argumentHelper, batchLoaderHelper, errorResultHelper, eventEmitter, fieldHelper, operation, reflectionHelper

Constructor Summary

Constructors

Constructor and Description
PublisherDataFetcher(Operation operation, Config config)

Method Summary

Modifier and Type	Method and Description
protected <O> O	invokeAndTransform(graphql.schema.DataFetchingEnvironment dfe, graphql.execution.DataFetcherResult.Builder<Object> resultBuilder, Object[] transformedArguments)
protected <O> O	invokeFailure(graphql.execution.DataFetcherResult.Builder<Object> resultBuilder)
CompletionStage<List<T>>	load(List<K> keys, org.dataloader.BatchLoaderEnvironment ble)

Methods inherited from class io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher

get, getSmallRyeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

PublisherDataFetcher

public PublisherDataFetcher(Operation operation,
                            Config config)

Method Detail

invokeAndTransform

protected <O> O invokeAndTransform(graphql.schema.DataFetchingEnvironment dfe,
                                   graphql.execution.DataFetcherResult.Builder<Object> resultBuilder,
                                   Object[] transformedArguments)
                            throws Exception

Specified by:

invokeAndTransform in class AbstractDataFetcher<K,T>

Throws:

Exception

invokeFailure

protected <O> O invokeFailure(graphql.execution.DataFetcherResult.Builder<Object> resultBuilder)

Specified by:

invokeFailure in class AbstractDataFetcher<K,T>

load

public CompletionStage<List<T>> load(List<K> keys,
                                     org.dataloader.BatchLoaderEnvironment ble)