Package io.smallrye.graphql.execution.datafetcher

Class FieldDataFetcher<T>

java.lang.Object

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

Type Parameters:

T -

All Implemented Interfaces:

graphql.schema.DataFetcher<T>, graphql.TrivialDataFetcher<T>, PlugableDataFetcher<T>

public class FieldDataFetcher<T>
extends Object
implements PlugableDataFetcher<T>, graphql.TrivialDataFetcher<T>

Custom property data fetcher to allow arbitrary method names (instead of getters/setters) and to intercept the result for some manipulation.

Implementation Note:

If the (graphql-) field has no methodName, a FieldDataFetcher.FieldAccessor for the (java-) field is is created. Otherwise, a FieldDataFetcher.MethodAccessor is created for the accessor method.

The owner is used to create the FieldDataFetcher.PropertyAccessor independently of the source object (which could be a different subtype of the owner class for each call).

Constructor Summary

Constructors

Constructor	Description
FieldDataFetcher(Field field, Type type, Reference owner)

Method Summary

Modifier and Type	Method	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 Details

FieldDataFetcher

public FieldDataFetcher(Field field,
 Type type,
 Reference owner)

Method Details

get

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

Specified by:

get in interface graphql.schema.DataFetcher<T>

Throws:

Exception