graphql.annotations.dataFetchers

Class MethodDataFetcher<T>

java.lang.Object

graphql.annotations.dataFetchers.MethodDataFetcher<T>

Type Parameters:

T - type of the returned value

All Implemented Interfaces:

graphql.schema.DataFetcher<T>

Direct Known Subclasses:

BatchedMethodDataFetcher

public class MethodDataFetcher<T>
extends java.lang.Object
implements graphql.schema.DataFetcher<T>

This class is determining how to return value of a method from an api entity The order of the mapping: 1. If no source is provided to map between - invoking the method implementation 2. If annotated with @GraphQLInvokeDetached - invoking the method implementation 3. else If source is provided, and method name is matching a method name in the source object - execute source implementation i.e method name is: `name` ; existing method in the source object with name: `name` 4. else If source is provided, and method name is matching a method name with a `get` prefix in the source object - execute source implementation i.e method name is: `name` ; existing method in the source object with name: `getName` 5. else If source is provided, and method name is matching a method name with a `is` prefix in the source object - execute source implementation i.e method name is: `name` ; existing method in the source object with name: isName 6. else If source is provided, and method name is matching a field name in the source object - return field value from the source object i.e method name is: `name` ; field name in source object is: `name` 7. else If source is provided, and method name is prefixed with `get` or `is` - and it matches to a field name (without the prefix) in the source object - return field value from the source object i.e method name is: `getName` ; field name in source object is: `name`

Constructor Summary

Constructors

Constructor and Description
MethodDataFetcher(java.lang.reflect.Method method, TypeFunction typeFunction, ProcessingElementsContainer container)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodDataFetcher

public MethodDataFetcher(java.lang.reflect.Method method,
                         TypeFunction typeFunction,
                         ProcessingElementsContainer container)

Method Detail

get

public T get(graphql.schema.DataFetchingEnvironment environment)

Specified by:

get in interface graphql.schema.DataFetcher<T>