Package graphql.execution

Class FieldValueInfo

java.lang.Object

graphql.execution.FieldValueInfo

@PublicApi
public class FieldValueInfo
extends Object

The FieldValueInfo holds the type of field that was fetched and completed along with the completed value.

A field value is considered when its is both fetch via a DataFetcher to a raw value, and then it is serialized into scalar or enum or if it's an object type, it is completed as an object given its field sub selection

The getFieldValueObject() method returns either a materialized value or a CompletableFuture promise to a materialized value. Simple in-memory values will tend to be materialized, while complicated values might need a call to a database or other systems will tend to be CompletableFuture promises.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	FieldValueInfo.CompleteValueType

Constructor Summary

Constructors

Constructor	Description
FieldValueInfo(FieldValueInfo.CompleteValueType completeValueType, Object fieldValueObject)
FieldValueInfo(FieldValueInfo.CompleteValueType completeValueType, Object fieldValueObject, List<FieldValueInfo> fieldValueInfos)

Method Summary

Modifier and Type	Method	Description
FieldValueInfo.CompleteValueType	getCompleteValueType()	This is an enum that represents the type of field value that was completed for a field
CompletableFuture<Object>	getFieldValueFuture()	This returns the value in CompletableFuture form.
List<FieldValueInfo>	getFieldValueInfos()	When the getCompleteValueType() is FieldValueInfo.CompleteValueType.LIST this holds the list of completed values inside that list object.
Object	getFieldValueObject()	This value can be either an object that is materialized or a CompletableFuture promise to a value
boolean	isFutureValue()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

FieldValueInfo

public FieldValueInfo(FieldValueInfo.CompleteValueType completeValueType,
 Object fieldValueObject)

FieldValueInfo

public FieldValueInfo(FieldValueInfo.CompleteValueType completeValueType,
 Object fieldValueObject,
 List<FieldValueInfo> fieldValueInfos)

Method Details

getCompleteValueType

public FieldValueInfo.CompleteValueType getCompleteValueType()

This is an enum that represents the type of field value that was completed for a field

Returns:

the type of field value

getFieldValueObject

public Object getFieldValueObject()

This value can be either an object that is materialized or a CompletableFuture promise to a value

Returns:

either an object that is materialized or a CompletableFuture promise to a value

getFieldValueFuture

public CompletableFuture<Object> getFieldValueFuture()

This returns the value in CompletableFuture form. If it is already a CompletableFuture it is returned directly, otherwise the materialized value is wrapped in a CompletableFuture and returned

Returns:

a CompletableFuture promise to the value

isFutureValue

public boolean isFutureValue()

Returns:

true if the value is a CompletableFuture promise to a value

getFieldValueInfos

public List<FieldValueInfo> getFieldValueInfos()

When the getCompleteValueType() is FieldValueInfo.CompleteValueType.LIST this holds the list of completed values inside that list object.

Returns:

the list of completed field values inside a list

toString

public String toString()

Overrides:

toString in class Object