com.daikit.graphql.datafetcher

Class GQLCustomMethodDataFetcher

java.lang.Object

com.daikit.graphql.datafetcher.GQLAbstractDataFetcher<Object>

com.daikit.graphql.datafetcher.GQLCustomMethodDataFetcher

All Implemented Interfaces:

graphql.schema.DataFetcher<Object>

public class GQLCustomMethodDataFetcher
extends GQLAbstractDataFetcher<Object>

Class that may be overridden (or used as is) to provide "custom method" data fetcher to the schema building. This class is typically to be extended and used in GQLSchemaBuilder for buildSchema custom method data fetcher argument

Author:

Thibaut Caselli

Constructor Summary

Constructors

Constructor and Description
GQLCustomMethodDataFetcher()

Method Summary

Modifier and Type	Method and Description
protected Object	convertValue(Map<String,Object> argumentPropertyValues, GQLCustomMethodArg argument) Convert given argument property values map to an actual argument object of the expected argument type
Object	get(graphql.schema.DataFetchingEnvironment environment)
protected <T> T	getArgumentValue(graphql.schema.DataFetchingEnvironment environment, GQLCustomMethodArg argument) Get argument value from given environment
com.fasterxml.jackson.databind.ObjectMapper	getObjectMapper()
void	registerCustomMethods(List<? extends GQLCustomMethod> customMethods) Register custom methods in this data fetcher.
void	setObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Methods inherited from class com.daikit.graphql.datafetcher.GQLAbstractDataFetcher

convertObjectValue, getArgumentsForContext, getArgumentsForContextAsList, getArgumentValue, getConfig, getEntityClassByEntityName, getEntityName, getMetaModel, getRequestProvidedVariableNames, mapValue, mapValue, setMetaModel, setSchemaConfig

Methods inherited from class java.lang.Object

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

Constructor Detail

GQLCustomMethodDataFetcher

public GQLCustomMethodDataFetcher()

Method Detail

registerCustomMethods

public void registerCustomMethods(List<? extends GQLCustomMethod> customMethods)

Register custom methods in this data fetcher. This will be done automatically during schema building process.

Parameters:

customMethods - a List of GQLCustomMethod

get

public Object get(graphql.schema.DataFetchingEnvironment environment)
           throws Exception

Throws:

Exception

getArgumentValue

protected <T> T getArgumentValue(graphql.schema.DataFetchingEnvironment environment,
                                 GQLCustomMethodArg argument)

Get argument value from given environment

Type Parameters:

T - the argument type

Parameters:

environment - the DataFetchingEnvironment

argument - the GQLCustomMethodArg

Returns:

the argument value

convertValue

protected Object convertValue(Map<String,Object> argumentPropertyValues,
                              GQLCustomMethodArg argument)

Convert given argument property values map to an actual argument object of the expected argument type

Parameters:

argumentPropertyValues - a Map of property values to set in argument object

argument - the GQLCustomMethodArg

Returns:

the converted value

getObjectMapper

public com.fasterxml.jackson.databind.ObjectMapper getObjectMapper()

Returns:

the objectMapper

setObjectMapper

public void setObjectMapper(com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Parameters:

objectMapper - the objectMapper to set