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StarWarsSchema.java
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StarWarsSchema.java
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package graphql;
import graphql.schema.*;
import static graphql.Scalars.GraphQLString;
import static graphql.schema.GraphQLArgument.newArgument;
import static graphql.schema.GraphQLEnumType.newEnum;
import static graphql.schema.GraphQLFieldDefinition.newFieldDefinition;
import static graphql.schema.GraphQLInterfaceType.newInterface;
import static graphql.schema.GraphQLList.list;
import static graphql.schema.GraphQLNonNull.nonNull;
import static graphql.schema.GraphQLObjectType.newObject;
public class StarWarsSchema {
public static GraphQLEnumType episodeEnum = newEnum()
.name("Episode")
.description("One of the films in the Star Wars Trilogy")
.value("NEWHOPE", 4, "Released in 1977.")
.value("EMPIRE", 5, "Released in 1980.")
.value("JEDI", 6, "Released in 1983.")
.build();
public static GraphQLInterfaceType characterInterface = newInterface()
.name("Character")
.description("A character in the Star Wars Trilogy")
.field(newFieldDefinition()
.name("id")
.description("The id of the character.")
.type(nonNull(GraphQLString)))
.field(newFieldDefinition()
.name("name")
.description("The name of the character.")
.type(GraphQLString))
.field(newFieldDefinition()
.name("friends")
.description("The friends of the character, or an empty list if they have none.")
.type(list(new GraphQLTypeReference("Character"))))
.field(newFieldDefinition()
.name("appearsIn")
.description("Which movies they appear in.")
.type(list(episodeEnum)))
.typeResolver(StarWarsData.getCharacterTypeResolver())
.build();
public static GraphQLObjectType humanType = newObject()
.name("Human")
.description("A humanoid creature in the Star Wars universe.")
.withInterface(characterInterface)
.field(newFieldDefinition()
.name("id")
.description("The id of the human.")
.type(nonNull(GraphQLString)))
.field(newFieldDefinition()
.name("name")
.description("The name of the human.")
.type(GraphQLString))
.field(newFieldDefinition()
.name("friends")
.description("The friends of the human, or an empty list if they have none.")
.type(list(characterInterface))
.dataFetcher(StarWarsData.getFriendsDataFetcher()))
.field(newFieldDefinition()
.name("appearsIn")
.description("Which movies they appear in.")
.type(list(episodeEnum)))
.field(newFieldDefinition()
.name("homePlanet")
.description("The home planet of the human, or null if unknown.")
.type(GraphQLString))
.build();
public static GraphQLObjectType droidType = newObject()
.name("Droid")
.description("A mechanical creature in the Star Wars universe.")
.withInterface(characterInterface)
.field(newFieldDefinition()
.name("id")
.description("The id of the droid.")
.type(nonNull(GraphQLString)))
.field(newFieldDefinition()
.name("name")
.description("The name of the droid.")
.type(GraphQLString))
.field(newFieldDefinition()
.name("friends")
.description("The friends of the droid, or an empty list if they have none.")
.type(list(characterInterface))
.dataFetcher(StarWarsData.getFriendsDataFetcher()))
.field(newFieldDefinition()
.name("appearsIn")
.description("Which movies they appear in.")
.type(list(episodeEnum)))
.field(newFieldDefinition()
.name("primaryFunction")
.description("The primary function of the droid.")
.type(GraphQLString))
.build();
public static GraphQLObjectType queryType = newObject()
.name("QueryType")
.field(newFieldDefinition()
.name("hero")
.type(characterInterface)
.argument(newArgument()
.name("episode")
.description("If omitted, returns the hero of the whole saga. If provided, returns the hero of that particular episode.")
.type(episodeEnum))
.dataFetcher(new StaticDataFetcher(StarWarsData.getArtoo())))
.field(newFieldDefinition()
.name("human")
.type(humanType)
.argument(newArgument()
.name("id")
.description("id of the human")
.type(nonNull(GraphQLString)))
.dataFetcher(StarWarsData.getHumanDataFetcher()))
.field(newFieldDefinition()
.name("droid")
.type(droidType)
.argument(newArgument()
.name("id")
.description("id of the droid")
.type(nonNull(GraphQLString)))
.dataFetcher(StarWarsData.getDroidDataFetcher()))
.build();
public static GraphQLSchema starWarsSchema = GraphQLSchema.newSchema()
.query(queryType)
.build();
}