Change example to use Starwars entity schema

fixed #3

Author: igdianov

graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Character.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017 IntroPro Ventures Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.introproventures.graphql.jpa.query.example.model;
+
+import java.util.Set;
+
+import javax.persistence.ElementCollection;
+import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
+import javax.persistence.OrderBy;
+
+import com.introproventures.graphql.jpa.query.annotation.GraphQLDescription;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+@Entity
+@GraphQLDescription("Abstract representation of an entity in the Star Wars Universe")
+@Getter
+@Setter
+@ToString
+@EqualsAndHashCode(exclude={"appearsIn","friends"}) // Fixes NPE in Hibernate when initializing loaded collections #1
+public abstract class Character {
+
+    @Id
+    @GraphQLDescription("Primary Key for the Character Class")
+    String id;
+
+    @GraphQLDescription("Name of the character")
+    String name;
+
+    @GraphQLDescription("Who are the known friends to this character")
+    @ManyToMany
+    @JoinTable(name="character_friends",
+            joinColumns=@JoinColumn(name="source_id", referencedColumnName="id"),
+            inverseJoinColumns=@JoinColumn(name="friend_id", referencedColumnName="id"))
+    Set<Character> friends; 
+
+    @GraphQLDescription("What Star Wars episodes does this character appear in")
+    @ElementCollection(targetClass = Episode.class)
+    @Enumerated(EnumType.ORDINAL)
+    @OrderBy
+    Set<Episode> appearsIn;
+    
+    Character() {}
+
+}

graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/CodeList.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2017 IntroPro Ventures Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.introproventures.graphql.jpa.query.example.model;
+
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+import com.introproventures.graphql.jpa.query.annotation.GraphQLDescription;
+
+import lombok.Data;
+
+@Entity
+@GraphQLDescription("Database driven enumeration")
+@Data
+public class CodeList {
+
+    @Id
+    @GraphQLDescription("Primary Key for the Code List Class")
+    Long id;
+
+    String type;
+    String code;
+    Integer sequence;
+    boolean active;
+    String description;
+
+    @ManyToOne
+    @JoinColumn(name = "parent_id")
+    CodeList parent;
+
+}

graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Author.java renamed to graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Droid.java

@@ -16,22 +16,20 @@
 
 package com.introproventures.graphql.jpa.query.example.model;
 
-import java.util.Collection;
-
 import javax.persistence.Entity;
-import javax.persistence.Id;
-import javax.persistence.OneToMany;
+
+import com.introproventures.graphql.jpa.query.annotation.GraphQLDescription;
 
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 
-@Data
 @Entity
-public class Author {
-	@Id
-	Long id;
+@GraphQLDescription("Represents an electromechanical robot in the Star Wars Universe")
+@Data
+@EqualsAndHashCode(callSuper=true)
+public class Droid extends Character {
 
-	String name;
+    @GraphQLDescription("Documents the primary purpose this droid serves")
+    String primaryFunction;
 
-	@OneToMany(mappedBy="author")
-	Collection<Book> books;
 }

graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Genre.java renamed to graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Episode.java

@@ -16,6 +16,14 @@
 
 package com.introproventures.graphql.jpa.query.example.model;
 
-public enum Genre {
-	NOVEL, PLAY
+public enum Episode {
+
+    PHANTOM_MENACE,
+    ATTACK_OF_THE_CLONES,
+    REVENGE_OF_THE_SITH,
+    A_NEW_HOPE,
+    EMPIRE_STRIKES_BACK,
+    RETURN_OF_THE_JEDI,
+    THE_FORCE_AWAKENS
+
 }

graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Book.java renamed to graphql-jpa-query-example/src/main/java/com/introproventures/graphql/jpa/query/example/model/Human.java

@@ -17,24 +17,26 @@
 package com.introproventures.graphql.jpa.query.example.model;
 
 import javax.persistence.Entity;
-import javax.persistence.EnumType;
-import javax.persistence.Enumerated;
-import javax.persistence.Id;
+import javax.persistence.FetchType;
+import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 
 import lombok.Data;
+import lombok.EqualsAndHashCode;
 
+@Entity(name = "Human")
 @Data
-@Entity
-public class Book {
-	@Id
-	Long id;
+@EqualsAndHashCode(callSuper=true)
+public class Human extends Character {
 
-	String title;
+    String homePlanet;
 
-	@ManyToOne
-	Author author;
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "favorite_droid_id")
+    Droid favoriteDroid;
+
+    @ManyToOne
+    @JoinColumn(name = "gender_code_id")
+    CodeList gender;
 
-	@Enumerated(EnumType.STRING)
-	Genre genre;
 }

graphql-jpa-query-example/src/main/resources/application.yml

@@ -8,6 +8,6 @@ spring:
   graphql:
     jpa:
       query:
-        name: GraphQLJpaQueryExample
-        description: GraphQL Jpa Query Example Books Schema Description
+        name: GraphQLJpaQueryStarwars
+        description: GraphQL Jpa Query Starwars Schema Example
         enabled: true

graphql-jpa-query-example/src/main/resources/data.sql

@@ -1,8 +1,104 @@
--- Books
-insert into author (id, name) values (1, 'Leo Tolstoy');
-insert into book (id, title, author_id, genre) values (2, 'War and Peace', 1, 'NOVEL');
-insert into book (id, title, author_id, genre) values (3, 'Anna Karenina', 1, 'NOVEL');
-insert into author (id, name) values (4, 'Anton Chekhov');
-insert into book (id, title, author_id, genre) values (5, 'The Cherry Orchard', 4, 'PLAY');
-insert into book (id, title, author_id, genre) values (6, 'The Seagull', 4, 'PLAY');
-insert into book (id, title, author_id, genre) values (7, 'Three Sisters', 4, 'PLAY');
+-- Insert Code Lists
+insert into code_list (id, type, code, description, sequence, active, parent_id) values 
+  (0, 'org.crygier.graphql.model.starwars.Gender', 'Male', 'Male', 1, true, null),
+  (1, 'org.crygier.graphql.model.starwars.Gender', 'Female', 'Female', 2, true, null);
+
+-- Insert Droids
+insert into character (id, name, primary_function, dtype) values
+    ('2000', 'C-3PO', 'Protocol', 'Droid'),
+    ('2001', 'R2-D2', 'Astromech', 'Droid');
+
+-- Insert Humans
+insert into character (id, name, home_planet, favorite_droid_id, dtype, gender_code_id) values
+    ('1000', 'Luke Skywalker', 'Tatooine', '2000', 'Human', 0),
+    ('1001', 'Darth Vader', 'Tatooine', '2001', 'Human', 0),
+    ('1002', 'Han Solo', NULL, NULL, 'Human', 0),
+    ('1003', 'Leia Organa', 'Alderaan', NULL, 'Human', 1),
+    ('1004', 'Wilhuff Tarkin', NULL, NULL, 'Human', 0);
+
+-- Luke's friends
+insert into character_friends (source_id, friend_id) values
+    ('1000', '1002'),
+    ('1000', '1003'),
+    ('1000', '2000'),
+    ('1000', '2001');
+
+-- Luke Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('1000', 3),
+    ('1000', 4),
+    ('1000', 5),
+    ('1000', 6);
+
+-- Vader's friends
+insert into character_friends (source_id, friend_id) values
+    ('1001', '1004');
+
+-- Vader Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('1001', 3),
+    ('1001', 4),
+    ('1001', 5);
+
+-- Solo's friends
+insert into character_friends (source_id, friend_id) values
+    ('1002', '1000'),
+    ('1002', '1003'),
+    ('1002', '2001');
+
+-- Solo Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('1002', 3),
+    ('1002', 4),
+    ('1002', 5),
+    ('1002', 6);
+
+-- Leia's friends
+insert into character_friends (source_id, friend_id) values
+    ('1003', '1000'),
+    ('1003', '1002'),
+    ('1003', '2000'),
+    ('1003', '2001');
+
+-- Leia Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('1003', 3),
+    ('1003', 4),
+    ('1003', 5),
+    ('1003', 6);
+
+-- Wilhuff's friends
+insert into character_friends (source_id, friend_id) values
+    ('1004', '1001');
+
+-- Wilhuff Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('1004', 3);
+
+-- C3PO's friends
+insert into character_friends (source_id, friend_id) values
+    ('2000', '1000'),
+    ('2000', '1002'),
+    ('2000', '1003'),
+    ('2000', '2001');
+
+-- C3PO Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('2000', 3),
+    ('2000', 4),
+    ('2000', 5),
+    ('2000', 6);
+
+-- R2's friends
+insert into character_friends (source_id, friend_id) values
+    ('2001', '1000'),
+    ('2001', '1002'),
+    ('2001', '1003');
+
+-- R2 Appears in
+insert into character_appears_in (character_id, appears_in) values
+    ('2001', 3),
+    ('2001', 4),
+    ('2001', 5),
+    ('2001', 6);
+