FieldFetchingInstrumentationContext (graphql-java 24.0 API)

All Superinterfaces:

InstrumentationContext<java.lang.Object>
```
@PublicSpi
public interface FieldFetchingInstrumentationContext
extends InstrumentationContext<java.lang.Object>
```
FieldFetchingInstrumentationContext is returned back from the Instrumentation.beginFieldFetching(InstrumentationFieldFetchParameters, InstrumentationState) method, and it's much like the normal InstrumentationContext type except it also gives the value that was returned by a fields DataFetcher. This allows you to know if the field value is a completely materialised field or if it's a CompletableFuture promise to a value.

Field Summary

Fields
Modifier and Type Field Description

static FieldFetchingInstrumentationContext NOOP

Method Summary

All Methods Static Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`static FieldFetchingInstrumentationContext`	`adapter(@Nullable InstrumentationContext<java.lang.Object> context)`
`static @NonNull FieldFetchingInstrumentationContext`	`nonNullCtx(FieldFetchingInstrumentationContext nullableContext)`	This creates a no-op `InstrumentationContext` if the one passed in is null
`default void`	`onFetchedValue(java.lang.Object fetchedValue)`	This is called back with the value fetched for the field by its `DataFetcher`.

Methods inherited from interface graphql.execution.instrumentation.InstrumentationContext
onCompleted, onDispatched

- Field Detail
  - NOOP
```
static final FieldFetchingInstrumentationContext NOOP
```
- Method Detail
  - onFetchedValue
```
default void onFetchedValue(java.lang.Object fetchedValue)
```
    This is called back with the value fetched for the field by its DataFetcher. This can be a materialised java object or it maybe a CompletableFuture promise to some async value that has not yet completed.
    
    Parameters:
    
    fetchedValue - a value that a field's DataFetcher returned
  - nonNullCtx
```
static @NonNull FieldFetchingInstrumentationContext nonNullCtx(FieldFetchingInstrumentationContext nullableContext)
```
    This creates a no-op InstrumentationContext if the one passed in is null
    
    Parameters:
    
    nullableContext - a InstrumentationContext that can be null
    
    Returns:
    
    a non-null InstrumentationContext that maybe a no-op
  - adapter
```
static FieldFetchingInstrumentationContext adapter(@Nullable InstrumentationContext<java.lang.Object> context)
```