Added Activity 24 Application - Unit 15

jmcamposdev · jmcamposdev · commit 9229ff796e97 · 2023-05-27T14:34:11.000+02:00
diff --git a/Unit15-JPA/src/unit15/jpa/Actividad24_Aplicacion/Main.java b/Unit15-JPA/src/unit15/jpa/Actividad24_Aplicacion/Main.java
@@ -0,0 +1,31 @@
+package unit15.jpa.Actividad24_Aplicacion;
+
+import unit15.jpa.Actividad22_Aplicacion.Barco;
+
+import java.util.List;
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.Query;
+
+
+public class Main {
+
+    
+    public static void main(String[] args) {        
+        EntityManagerFactory emf
+                = Persistence.createEntityManagerFactory("barcosMarinerosPU");
+        EntityManager em = emf.createEntityManager();
+        
+        String jpql = "SELECT b FROM Barco b WHERE SIZE(b.marineroCollection) >= 5";
+        
+        Query query = em.createQuery(jpql);
+        List<Barco> barcos = query.getResultList();
+        
+        System.out.println("Barcos con 3 o más marineros");
+        for(Barco b: barcos) {
+              System.out.println(b);
+           }
+        }
+    }
+
