refactor: finish the graph lab

06-graph/src/main/java/expert/os/labs/persistence/persistence/Animal.java

@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package expert.os.labs.persistence.persistence;
 
 import jakarta.nosql.Column;

06-graph/src/main/java/expert/os/labs/persistence/persistence/AnimalService.java

@@ -1,6 +1,15 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package expert.os.labs.persistence.persistence;
 
-
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.inject.Inject;
 import org.eclipse.jnosql.mapping.graph.EntityTree;

06-graph/src/main/java/expert/os/labs/persistence/persistence/AppAnimal.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
+package expert.os.labs.persistence.persistence;
+
+import jakarta.enterprise.inject.se.SeContainer;
+import jakarta.enterprise.inject.se.SeContainerInitializer;
+import org.eclipse.jnosql.mapping.graph.EntityTree;
+
+import java.util.List;
+
+public class AppAnimal {
+
+    public static void main(String[] args) {
+        try (SeContainer container = SeContainerInitializer.newInstance().initialize()) {
+
+            AnimalService service = container.select(AnimalService.class).get();
+
+            // Create and establish "eats" relationships between animals
+            Animal grass = service.animal("grass");
+            Animal grasshopper = service.animal("grasshopper");
+            Animal frog = service.animal("frog");
+            Animal snake = service.animal("snake");
+            Animal eagle = service.animal("eagle");
+
+            // Use the service method eats() to define which animal can eat another one based on the chain food
+            service.eats(eagle, snake);
+            service.eats(snake, frog);
+            service.eats(frog, grasshopper);
+            service.eats(grasshopper, grass);
+
+            // Retrieve and printout the list of animals that eats twice
+            List<Animal> animalEatsTwice = service.eatsTwice();
+            System.out.println("The animals that eat twice: " + animalEatsTwice);
+
+            // Retrieve and printout the list of animals that eats grass
+            List<Animal> animalEatGrass = service.untilGrass();
+            System.out.println("The animals that eat until grass: " + animalEatGrass);
+
+            // Retrieve the entity tree and print it out
+            EntityTree entityTree = service.entityTree();
+            System.out.println("At the top of the entity tree: " + entityTree.getLeaf().toList());
+        }
+    }
+}

06-graph/src/main/java/expert/os/labs/persistence/persistence/AppMarketing.java

@@ -8,7 +8,6 @@
  *
  * You may elect to redistribute this code under either of these licenses.
  */
-
 package expert.os.labs.persistence.persistence;
 
 

06-graph/src/main/java/expert/os/labs/persistence/persistence/BookService.java

@@ -1,6 +1,15 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package expert.os.labs.persistence.persistence;
 
-
 import jakarta.enterprise.context.ApplicationScoped;
 import jakarta.inject.Inject;
 import org.eclipse.jnosql.mapping.graph.GraphTemplate;

06-graph/src/main/java/expert/os/labs/persistence/persistence/LibraryLabels.java

@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package expert.os.labs.persistence.persistence;
 
 import java.util.function.Supplier;

06-graph/src/main/java/expert/os/labs/persistence/persistence/Person.java

@@ -8,7 +8,6 @@
  *
  * You may elect to redistribute this code under either of these licenses.
  */
-
 package expert.os.labs.persistence.persistence;
 
 import jakarta.nosql.Column;

06-graph/src/main/java/expert/os/labs/persistence/persistence/PersonService.java

@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2022 Contributors to the Eclipse Foundation
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  and Apache License v2.0 which accompanies this distribution.
+ *  The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
+ *  and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
+ *
+ * You may elect to redistribute this code under either of these licenses.
+ */
 package expert.os.labs.persistence.persistence;
 
 import jakarta.enterprise.context.ApplicationScoped;

docs/extra-labs/graph-lab-2.md

@@ -239,7 +239,7 @@ Try to, first implement, and later, see the  solution!
 ### :material-play-box-multiple-outline: Steps
 
 1. Create a class called `AppMarketing` in the `expert.os.labs.persistence` package
-2. Add all the fields and methods from the code below to the class
+2. Add the necessary below code to the class
 
     ```java
     import jakarta.enterprise.inject.se.SeContainer;