io.smallrye.graphql.execution.datafetcher

Class ReflectionDataFetcher<T>

java.lang.Object

io.smallrye.graphql.execution.datafetcher.ReflectionDataFetcher<T>

All Implemented Interfaces:

graphql.schema.DataFetcher<T>

public class ReflectionDataFetcher<T>
extends Object
implements graphql.schema.DataFetcher<T>

Fetch data using some bean lookup and Reflection

Author:

Phillip Kruger (phillip.kruger@redhat.com)

Constructor Summary

Constructors

Constructor and Description
ReflectionDataFetcher(Operation operation, Config config) We use this reflection data fetcher on operations (so Queries, Mutations and Source) ParameterClasses: We need an Array of Classes that this operation method needs so we can use reflection to call the method.

Method Summary

Modifier and Type	Method and Description
T	get(graphql.schema.DataFetchingEnvironment dfe)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionDataFetcher

public ReflectionDataFetcher(Operation operation,
                             Config config)

We use this reflection data fetcher on operations (so Queries, Mutations and Source) ParameterClasses: We need an Array of Classes that this operation method needs so we can use reflection to call the method. FieldHelper: We might have to transform the data on the way out if there was a Formatting annotation on the method, or return object fields, we can not use normal JsonB to do this because we do not bind a full object, and we support annotation that is not part on JsonB ArgumentHelper: The same as above, except for every parameter on the way in.

Parameters:

operation - the operation

Method Detail

get

public T get(graphql.schema.DataFetchingEnvironment dfe)
      throws Exception

Specified by:

get in interface graphql.schema.DataFetcher<T>

Throws:

Exception