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star wars schema example
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‎README.md‎

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@@ -5,9 +5,18 @@ and the JavaScript [reference implementation](https://github.com/graphql/graphql
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It's an early version, but the query parser should be near 100%.
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The execution part is WIP, and validation, error handling and more is still missing.
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The execution part is WIP, and validation, error handling and more is still missing.
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### How to use it
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#### Schema definition
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A complex schema (stolen from the js reference implementation): [StarWarsSchema](src/test/java/graphql/StarWarsSchema.java)
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#### Query
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For how to define a simple schema and execute queries: [GraphQL Test](src/test/groovy/graphql/GraphQLTest.groovy)
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For how to define a schema and execute queries: [GraphQL Test](src/test/groovy/graphql/GraphQLTest.groovy)
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### Details
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‎src/main/java/graphql/schema/GraphQLEnumType.java‎

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package graphql.schema;
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import java.util.ArrayList;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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public class GraphQLEnumType implements GraphQLType, GraphQLInputType, GraphQLOutputType {
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String name;
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private final String name;
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private final String description;
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private final Map<String, GraphQLEnumValueDefinition> valueDefinitionMap = new LinkedHashMap<>();
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private Coercing coercing;
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public GraphQLEnumType(String name, String description, List<GraphQLEnumValueDefinition> values) {
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this.name = name;
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this.description = description;
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buildMap(values);
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}
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private void buildMap(List<GraphQLEnumValueDefinition> values) {
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for (GraphQLEnumValueDefinition valueDefinition : values) {
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valueDefinitionMap.put(valueDefinition.getName(), valueDefinition);
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}
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Coercing getCoercing() {
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return coercing;
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}
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public void setCoercing(Coercing coercing) {
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this.coercing = coercing;
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public static Builder newEnum() {
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return new Builder();
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}
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public static class Builder {
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private String name;
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private String description;
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private final List<GraphQLEnumValueDefinition> values = new ArrayList<>();
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public Builder name(String name) {
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this.name = name;
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return this;
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}
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public Builder description(String description) {
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this.description = description;
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return this;
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}
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public Builder value(String name, Object value, String description) {
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values.add(new GraphQLEnumValueDefinition(name, description, value));
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return this;
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}
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public Builder value(String name) {
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values.add(new GraphQLEnumValueDefinition(name, null, null));
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return this;
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}
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public GraphQLEnumType build() {
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return new GraphQLEnumType(name, description, values);
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}
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}
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}

‎src/main/java/graphql/schema/GraphQLEnumValueDefinition.java‎

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package graphql.schema;
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public class GraphQLEnumValueDefinition {
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private final String name;
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private final String description;
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private final Object value;
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public GraphQLEnumValueDefinition(String name, String description, Object value) {
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this.name = name;
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this.description = description;
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this.value = value;
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}
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public String getName() {
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return name;
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}
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public String getDescription() {
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return description;
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}
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public Object getValue() {
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return value;
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}
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}

‎src/main/java/graphql/schema/GraphQLInterfaceType.java‎

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public class GraphQLInterfaceType implements GraphQLType, GraphQLOutputType {
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private final String name;
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private final String description;
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private final Map<String, GraphQLFieldDefinition> fieldDefinitionsByName = new LinkedHashMap<>();
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public GraphQLInterfaceType(String name, List<GraphQLFieldDefinition> fieldDefinitions) {
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public GraphQLInterfaceType(String name, String description, List<GraphQLFieldDefinition> fieldDefinitions) {
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this.name = name;
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this.description = description;
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buildDefinitionMap(fieldDefinitions);
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}
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public String getName() {
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return name;
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}
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public String getDescription() {
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return description;
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}
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public static Builder newInterface() {
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return new Builder();
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}
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public static class Builder {
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private String name;
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private String description;
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private List<GraphQLFieldDefinition> fields = new ArrayList<>();
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public Builder name(String name) {
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this.name = name;
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return this;
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}
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public Builder description(String description) {
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this.description = description;
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return this;
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}
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public Builder field(GraphQLFieldDefinition fieldDefinition) {
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fields.add(fieldDefinition);
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return this;
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}
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public GraphQLInterfaceType build() {
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return new GraphQLInterfaceType(name,description,fields);
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}
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}
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}

‎src/main/java/graphql/schema/GraphQLSelfReference.java‎

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package graphql.schema;
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public class GraphQLSelfReference implements GraphQLType {
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private final String name;
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public GraphQLSelfReference(String name) {
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this.name = name;
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}
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public String getName() {
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return name;
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}
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}

‎src/test/java/grapqhl/StarWarsSchema.java‎

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package grapqhl;
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import graphql.Scalars;
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import graphql.schema.*;
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import static graphql.Scalars.GraphQLString;
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import static graphql.schema.GraphQLEnumType.newEnum;
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import static graphql.schema.GraphQLFieldDefinition.newFieldDefinition;
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import static graphql.schema.GraphQLInterfaceType.newInterface;
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public class StarWarsSchema {
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GraphQLEnumType episodeEnum = newEnum()
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.name("Episode")
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.description("One of the films in the Star Wars Trilogy")
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.value("NEWHOPE", 4, "Released in 1977.")
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.value("EMPIRE", 5, "Released in 1980.")
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.value("JEDI", 6, "Released in 1983.")
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.build();
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GraphQLInterfaceType characterInterface = newInterface()
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.name("Character")
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.description("A character in the Star Wars Trilogy")
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.field(newFieldDefinition()
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.name("id")
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.description("The id of the character.")
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.type(new GraphQLNonNull(GraphQLString))
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.build())
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.field(newFieldDefinition()
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.name("name")
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.description("The name of the character.")
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.type(GraphQLString)
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.build())
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.field(newFieldDefinition()
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.name("friends")
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.description("The friends of the character, or an empty list if they have none.")
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.type(new GraphQLList(new GraphQLSelfReference("Character")))
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.build())
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.field(newFieldDefinition()
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.name("appearsIn")
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.description("Which movies they appear in.")
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.type(new GraphQLList(episodeEnum))
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.build())
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.build();
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}

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