Added neo4j to the example

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/RestExporterExampleRestConfig.java

@@ -3,7 +3,6 @@ package org.springframework.data.rest.example;
 import org.springframework.context.MessageSource;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.ImportResource;
 import org.springframework.context.support.ReloadableResourceBundleMessageSource;
 import org.springframework.data.rest.config.RepositoryRestConfiguration;
 import org.springframework.data.rest.example.jpa.Person;
@@ -38,7 +37,8 @@ public class RestExporterExampleRestConfig extends RepositoryRestMvcConfiguratio
 		config.addResourceMappingForDomainType(Person.class)
 		      .addResourceMappingFor("siblings")
 		      .setRel("siblings")
-		      .setPath("siblings");
+		      .setPath("siblings")
+		      .setExported(false);
 	}
 
 	@Bean public ResourceProcessor<Resource<Person>> personResourceProcessor() {

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/RestExporterWebInitializer.java

@@ -4,9 +4,9 @@ import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.ServletRegistration;
 
-import org.springframework.data.rest.example.gemfire.GemfireRepositoryConfig;
 import org.springframework.data.rest.example.jpa.JpaRepositoryConfig;
 import org.springframework.data.rest.example.mongodb.MongoDbRepositoryConfig;
+import org.springframework.data.rest.example.neo4j.Neo4jRepositoryConfig;
 import org.springframework.web.WebApplicationInitializer;
 import org.springframework.web.context.ContextLoaderListener;
 import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
@@ -22,7 +22,8 @@ public class RestExporterWebInitializer implements WebApplicationInitializer {
 		rootCtx.register(
 				JpaRepositoryConfig.class,
 				MongoDbRepositoryConfig.class,
-				GemfireRepositoryConfig.class
+				//GemfireRepositoryConfig.class,
+				Neo4jRepositoryConfig.class
 		);
 
 		servletContext.addListener(new ContextLoaderListener(rootCtx));

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/jpa/Person.java

@@ -16,6 +16,7 @@ import javax.persistence.PrePersist;
 import javax.validation.constraints.NotNull;
 
 import org.springframework.data.rest.repository.annotation.Description;
+import org.springframework.data.rest.repository.annotation.RestResource;
 
 /**
  * An entity that represents a person.
@@ -32,6 +33,7 @@ public class Person {
 	@NotNull
 	private String lastName;
 	@Description("A person's siblings")
+	@RestResource(exported = false)
 	private List<Person> siblings = Collections.emptyList();
 	private Person father;
 	@Description("Timestamp this person object was created")

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/neo4j/Friend.java

@@ -0,0 +1,57 @@
+package org.springframework.data.rest.example.neo4j;
+
+import java.util.Set;
+
+import org.neo4j.graphdb.Direction;
+import org.springframework.data.neo4j.annotation.GraphId;
+import org.springframework.data.neo4j.annotation.NodeEntity;
+import org.springframework.data.neo4j.annotation.RelatedTo;
+
+/**
+ * @author Jon Brisbin
+ */
+@NodeEntity
+public class Friend {
+
+	@GraphId
+	private Long        id;
+	private String      name;
+	@RelatedTo(type = "BFF", direction = Direction.INCOMING)
+	private Set<Friend> friends;
+
+	protected Friend() {
+	}
+
+	public Friend(String name) {
+		this.name = name;
+	}
+
+	public Long getId() {
+		return id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public Set<Friend> getFriends() {
+		return friends;
+	}
+
+	public void setFriends(Set<Friend> friends) {
+		this.friends = friends;
+	}
+
+	@Override public String toString() {
+		return "Friend{" +
+				"id=" + id +
+				", name='" + name + '\'' +
+				", friends=[" + (null != friends ? friends.size() : 0) + "]" +
+				'}';
+	}
+
+}

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/neo4j/FriendLoader.java

@@ -0,0 +1,35 @@
+package org.springframework.data.rest.example.neo4j;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * @author Jon Brisbin
+ */
+public class FriendLoader {
+
+	@Autowired
+	private FriendRepository friends;
+
+	@SuppressWarnings({"unchecked"})
+	@Transactional
+	public void loadFriends() {
+		Friend bob = new Friend("Bob");
+		Friend dean = new Friend("Dean");
+		Friend jim = new Friend("Jim");
+
+		Set<Friend> friends = new HashSet<Friend>();
+		friends.add(dean);
+		friends.add(jim);
+
+		bob.setFriends(friends);
+
+		this.friends.save(bob);
+
+		System.out.println("Saved Bob: " + bob);
+	}
+
+}

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/neo4j/FriendRepository.java

@@ -0,0 +1,9 @@
+package org.springframework.data.rest.example.neo4j;
+
+import org.springframework.data.neo4j.repository.GraphRepository;
+
+/**
+ * @author Jon Brisbin
+ */
+public interface FriendRepository extends GraphRepository<Friend> {
+}

spring-data-rest-example/src/main/java/org/springframework/data/rest/example/neo4j/Neo4jRepositoryConfig.java

@@ -0,0 +1,48 @@
+package org.springframework.data.rest.example.neo4j;
+
+import java.io.File;
+import java.io.IOException;
+
+import org.neo4j.kernel.EmbeddedGraphDatabase;
+import org.neo4j.kernel.impl.util.FileUtils;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.data.neo4j.config.EnableNeo4jRepositories;
+import org.springframework.data.neo4j.config.JtaTransactionManagerFactoryBean;
+import org.springframework.data.neo4j.support.Neo4jTemplate;
+import org.springframework.data.neo4j.support.mapping.Neo4jMappingContext;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+import org.springframework.transaction.support.TransactionTemplate;
+
+/**
+ * @author Jon Brisbin
+ */
+@Configuration
+@EnableTransactionManagement
+@EnableNeo4jRepositories(basePackages = "org.springframework.data.rest.example.neo4j")
+public class Neo4jRepositoryConfig {
+
+	static final String DB_PATH = "db/neo4j-test-db";
+
+	@Bean(destroyMethod = "shutdown") public EmbeddedGraphDatabase graphDatabaseService() throws IOException {
+		FileUtils.deleteRecursively(new File(DB_PATH));
+		return new EmbeddedGraphDatabase(DB_PATH);
+	}
+
+	@Bean public Neo4jTemplate neo4jTemplate() throws IOException {
+		return new Neo4jTemplate(graphDatabaseService());
+	}
+
+	@Bean public Neo4jMappingContext neo4jMappingContext() {
+		return new Neo4jMappingContext();
+	}
+
+	@Bean public JtaTransactionManagerFactoryBean transactionManager() throws Exception {
+		return new JtaTransactionManagerFactoryBean(graphDatabaseService());
+	}
+
+	@Bean(initMethod = "loadFriends") public FriendLoader friendLoader() {
+		return new FriendLoader();
+	}
+
+}

spring-data-rest-example/src/main/resources/META-INF/spring/neo4j-config.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+       xmlns:neo4j="http://www.springframework.org/schema/data/neo4j"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+       http://www.springframework.org/schema/data/neo4j http://www.springframework.org/schema/data/neo4j/spring-neo4j.xsd">
+
+  <neo4j:config id="neo4j" storeDirectory="build/graph.db"/>
+  <neo4j:repositories base-package="org.springframework.data.rest.example.neo4j"/>
+
+  <bean class="org.springframework.data.rest.example.neo4j.FriendLoader" init-method="loadFriends"/>
+
+</beans>