io.vertx.ext.web.handler.graphql.schema

Interface VertxDataFetcher<T>

All Superinterfaces:

graphql.schema.DataFetcher<CompletionStage<T>>

public interface VertxDataFetcher<T>
extends graphql.schema.DataFetcher<CompletionStage<T>>

A DataFetcher that works well with Vert.x callback and Future based APIs.

Author:

Thomas Segismont

Method Summary

Modifier and Type	Method and Description
static <T> VertxDataFetcher<T>	create(java.util.function.BiConsumer<graphql.schema.DataFetchingEnvironment,Promise<T>> dataFetcher) Create a new data fetcher that works well with callback based APIs.
static <T> VertxDataFetcher<T>	create(java.util.function.BiConsumer<graphql.schema.DataFetchingEnvironment,Promise<T>> dataFetcher, java.util.function.Function<graphql.schema.DataFetchingEnvironment,Context> contextProvider) Like create(BiConsumer), except the method uses the provided contextProvider instead of capturing the current one.
static <T> VertxDataFetcher<T>	create(java.util.function.Function<graphql.schema.DataFetchingEnvironment,Future<T>> dataFetcher) Create a new data fetcher that works well with Future based APIs.
static <T> VertxDataFetcher<T>	create(java.util.function.Function<graphql.schema.DataFetchingEnvironment,Future<T>> dataFetcher, java.util.function.Function<graphql.schema.DataFetchingEnvironment,Context> contextProvider) Like create(Function), except the method uses the provided contextProvider instead of capturing the current one.

Methods inherited from interface graphql.schema.DataFetcher

get

Method Detail

create

static <T> VertxDataFetcher<T> create(java.util.function.BiConsumer<graphql.schema.DataFetchingEnvironment,Promise<T>> dataFetcher)

Create a new data fetcher that works well with callback based APIs.

The provided dataFetcher will be invoked with the following arguments:

• the DataFetchingEnvironment
• a Promise that the implementor must complete after the data objects are fetched

create

static <T> VertxDataFetcher<T> create(java.util.function.BiConsumer<graphql.schema.DataFetchingEnvironment,Promise<T>> dataFetcher,
                                      java.util.function.Function<graphql.schema.DataFetchingEnvironment,Context> contextProvider)

Like create(BiConsumer), except the method uses the provided contextProvider instead of capturing the current one.

create

static <T> VertxDataFetcher<T> create(java.util.function.Function<graphql.schema.DataFetchingEnvironment,Future<T>> dataFetcher)

Create a new data fetcher that works well with Future based APIs.

The provided dataFetcher will be invoked with the following argument:

• the DataFetchingEnvironment

create

static <T> VertxDataFetcher<T> create(java.util.function.Function<graphql.schema.DataFetchingEnvironment,Future<T>> dataFetcher,
                                      java.util.function.Function<graphql.schema.DataFetchingEnvironment,Context> contextProvider)

Like create(Function), except the method uses the provided contextProvider instead of capturing the current one.