io.leangen.graphql.metadata.strategy.value.gson

Class GsonValueMapper

java.lang.Object

io.leangen.graphql.metadata.strategy.value.gson.GsonValueMapper

All Implemented Interfaces:

InputFieldBuilder, ValueMapper

public class GsonValueMapper
extends Object
implements ValueMapper, InputFieldBuilder

Field Summary

Fields inherited from interface io.leangen.graphql.metadata.strategy.value.ValueMapper

TYPE_METADATA_FIELD_NAME

Constructor Summary

Constructors

Constructor and Description
GsonValueMapper(com.google.gson.Gson gson)

Method Summary

Modifier and Type	Method and Description
protected Object	defaultValue(Field field, AnnotatedType fieldType, GlobalEnvironment environment)
<T> T	fromInput(Object graphQLInput, Type sourceType, AnnotatedType outputType)
<T> T	fromString(String json, AnnotatedType type)
protected String	getDescription(Field field, MessageBundle messageBundle)
Set<InputField>	getInputFields(InputFieldBuilderParams params) Unlike Jackson, Gson doesn't expose any of its metadata, so this method is more or less a reimplementation of ReflectiveTypeAdapterFactory.getBoundFields(Gson, com.google.gson.reflect.TypeToken, Class)
boolean	supports(AnnotatedType type)
String	toString(Object output)

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.leangen.graphql.metadata.strategy.value.ValueMapper

fromInput

Constructor Detail

GsonValueMapper

public GsonValueMapper(com.google.gson.Gson gson)

Method Detail

fromInput

public <T> T fromInput(Object graphQLInput,
                       Type sourceType,
                       AnnotatedType outputType)
                throws InputParsingException

Specified by:

fromInput in interface ValueMapper

Throws:

InputParsingException

fromString

public <T> T fromString(String json,
                        AnnotatedType type)

Specified by:

fromString in interface ValueMapper

toString

public String toString(Object output)

Specified by:

toString in interface ValueMapper

getInputFields

public Set<InputField> getInputFields(InputFieldBuilderParams params)

Unlike Jackson, Gson doesn't expose any of its metadata, so this method is more or less a reimplementation of ReflectiveTypeAdapterFactory.getBoundFields(Gson, com.google.gson.reflect.TypeToken, Class)

Specified by:

getInputFields in interface InputFieldBuilder

Parameters:

params - The parameters available to the discovery strategy

Returns:

All deserializable fields that could be discovered from this AnnotatedType

getDescription

protected String getDescription(Field field,
                                MessageBundle messageBundle)

defaultValue

protected Object defaultValue(Field field,
                              AnnotatedType fieldType,
                              GlobalEnvironment environment)

supports

public boolean supports(AnnotatedType type)

Specified by:

supports in interface InputFieldBuilder