Package io.smallrye.graphql.execution.datafetcher.helper

Class AbstractHelper

java.lang.Object

io.smallrye.graphql.execution.datafetcher.helper.AbstractHelper

Direct Known Subclasses:

ArgumentHelper, FieldHelper

public abstract class AbstractHelper
extends Object

Help with the fields when fetching data.

Author:

Phillip Kruger (phillip.kruger@redhat.com)

Field Summary

Fields

Modifier and Type	Field	Description
protected ClassloadingService	classloadingService
protected DefaultMapAdapter	mapAdapter

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractHelper()

Method Summary

Modifier and Type	Method	Description
protected Class<?>	getArrayType(Field field)
protected ReflectionInvoker	getReflectionInvokerForInput(AdaptWith adaptWith)
protected ReflectionInvoker	getReflectionInvokerForOutput(AdaptWith adaptWith)
protected Transformer	getTransformer(Field field)
protected boolean	shouldAdapt(Field field)	Checks if we should adapt the field This is (for now) only applying to AdaptWith
protected boolean	shouldAdaptTo(Field field)
protected boolean	shouldAdaptWith(Field field)
protected boolean	shouldAutoAdaptWithMap(Field field)
protected boolean	shouldTransform(Field field)	Checks, if this field is a scalar and the object has the wrong type.
Object	transformOrAdapt(Object val, Field field, graphql.schema.DataFetchingEnvironment dfe)

Methods inherited from class java.lang.Object

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

Field Detail

classloadingService

protected final ClassloadingService classloadingService

mapAdapter

protected final DefaultMapAdapter mapAdapter

Constructor Detail

AbstractHelper

protected AbstractHelper()

Method Detail

shouldTransform

protected boolean shouldTransform(Field field)

Checks, if this field is a scalar and the object has the wrong type. Transformation is only possible for scalars and only needed if types don't match.

Parameters:

field - the field

Returns:

if transformation is needed

shouldAdapt

protected boolean shouldAdapt(Field field)

Checks if we should adapt the field This is (for now) only applying to AdaptWith

Parameters:

field - the field

Returns:

if adaption is needed

shouldAutoAdaptWithMap

protected boolean shouldAutoAdaptWithMap(Field field)

shouldAdaptWith

protected boolean shouldAdaptWith(Field field)

shouldAdaptTo

protected boolean shouldAdaptTo(Field field)

transformOrAdapt

public Object transformOrAdapt(Object val,
                               Field field,
                               graphql.schema.DataFetchingEnvironment dfe)
                        throws AbstractDataFetcherException

Throws:

AbstractDataFetcherException

getArrayType

protected Class<?> getArrayType(Field field)

getTransformer

protected Transformer getTransformer(Field field)

getReflectionInvokerForInput

protected ReflectionInvoker getReflectionInvokerForInput(AdaptWith adaptWith)

getReflectionInvokerForOutput

protected ReflectionInvoker getReflectionInvokerForOutput(AdaptWith adaptWith)