parametry

PC27-Hibernate/src/main/java/sklep/przyklady/Parametry.java

+package sklep.przyklady;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Scanner;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.TypedQuery;
+
+import sklep.model.Product;
+
+public class Parametry {
+
+	public static void main(String[] args) {
+		EntityManagerFactory emf = null;
+		EntityManager em = null;
+		try {
+			Scanner sc = new Scanner(System.in);
+			emf = Persistence.createEntityManagerFactory("sklep");
+			em = emf.createEntityManager();
+
+			System.out.print("Podaj  minimalną cenę: ");
+			BigDecimal min = sc.nextBigDecimal();
+			
+			System.out.print("Podaj maksymalną cenę: ");
+			BigDecimal max = sc.nextBigDecimal();
+			
+			TypedQuery<Product> query = em.createQuery(
+					"SELECT p FROM Product p WHERE p.price BETWEEN :minprice AND :maxprice",
+					Product.class);
+			query.setParameter("minprice", min);
+			query.setParameter("maxprice", max);
+			List<Product> products = query.getResultList();
+			System.out.println("Odczytano " + products.size() + " rekordów:");
+			for (Product product : products) {
+				System.out.println(" * " + product.getProductName() + " za " + product.getPrice());
+			}
+		} finally {
+			if(em != null)
+				em.close();
+			if(emf != null)
+				emf.close();
+		}
+	}
+
+}

PC27-Hibernate/src/main/java/sklep/przyklady/ParametryPozycyjne.java

+package sklep.przyklady;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Scanner;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.TypedQuery;
+
+import sklep.model.Product;
+
+public class ParametryPozycyjne {
+
+	public static void main(String[] args) {
+		EntityManagerFactory emf = null;
+		EntityManager em = null;
+		try {
+			Scanner sc = new Scanner(System.in);
+			emf = Persistence.createEntityManagerFactory("sklep");
+			em = emf.createEntityManager();
+
+			System.out.print("Podaj  minimalną cenę: ");
+			BigDecimal min = sc.nextBigDecimal();
+			
+			System.out.print("Podaj maksymalną cenę: ");
+			BigDecimal max = sc.nextBigDecimal();
+			
+			TypedQuery<Product> query = em.createQuery(
+					"SELECT p FROM Product p WHERE p.price BETWEEN ?1 AND ?2",
+					Product.class);
+			query.setParameter(1, min);
+			query.setParameter(2, max);
+			List<Product> products = query.getResultList();
+			System.out.println("Odczytano " + products.size() + " rekordów:");
+			for (Product product : products) {
+				System.out.println(" * " + product.getProductName() + " za " + product.getPrice());
+			}
+		} finally {
+			if(em != null)
+				em.close();
+			if(emf != null)
+				emf.close();
+		}
+	}
+}