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PC27-SklepHibernate/src/main/java/META-INF/persistence.xml

@@ -3,7 +3,7 @@
 	xmlns="http://xmlns.jcp.org/xml/ns/persistence"
 	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_2.xsd">
-	<persistence-unit name="PC27-SklepHibernate">
+	<persistence-unit name="sklep">
 		<class>sklep.model.Customer</class>
 		<class>sklep.model.OrderProduct</class>
 		<class>sklep.model.OrderProductPK</class>

PC27-SklepHibernate/src/main/java/sklep/model/Customer.java

@@ -2,13 +2,9 @@ package sklep.model;
 
 import java.io.Serializable;
 import jakarta.persistence.*;
-import jakarta.validation.constraints.Email;
-import jakarta.validation.constraints.Pattern;
 
 import java.util.List;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
-
 
 /**
  * The persistent class for the customers database table.
@@ -22,7 +18,6 @@ public class Customer implements Serializable {
 
 	@Id
 	@Column(name="customer_email", updatable=false)
-	@Email
 	private String customerEmail;
 
 	private String address;
@@ -36,12 +31,10 @@ public class Customer implements Serializable {
 	private String phoneNumber;
 
 	@Column(name="postal_code")
-	@Pattern(regexp="\\d{2}-\\d{3}")
 	private String postalCode;
 
 	//bi-directional many-to-one association to Order
 	@OneToMany(mappedBy="customer")
-	@JsonIgnore
 	private List<Order> orders;
 
 	public Customer() {

PC27-SklepHibernate/src/main/java/sklep/model/OrderProduct.java

@@ -2,14 +2,9 @@ package sklep.model;
 
 import java.io.Serializable;
 import jakarta.persistence.*;
-import jakarta.validation.constraints.DecimalMax;
-import jakarta.validation.constraints.DecimalMin;
-import jakarta.validation.constraints.Min;
 
 import java.math.BigDecimal;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
-
 
 /**
  * The persistent class for the order_products database table.
@@ -25,21 +20,16 @@ public class OrderProduct implements Serializable {
 	private OrderProductPK id;
 
 	@Column(name="actual_price")
-	@DecimalMin("0.01")
 	private BigDecimal actualPrice;
 
 	@Column(name="actual_vat")
-	@DecimalMin("0.00")
-	@DecimalMax("0.99")
 	private BigDecimal actualVat;
 
-	@Min(1)
 	private Integer quantity;
 
 	//bi-directional many-to-one association to Order
 	@ManyToOne
 	@JoinColumn(name="order_id", insertable=false, updatable=false)
-	@JsonIgnore
 	private Order order;
 
 	//uni-directional many-to-one association to Product

PC27-SklepHibernate/src/main/java/sklep/model/Product.java

@@ -2,7 +2,6 @@ package sklep.model;
 
 import java.io.Serializable;
 import jakarta.persistence.*;
-import jakarta.validation.constraints.*;
 
 import java.math.BigDecimal;
 
@@ -24,16 +23,11 @@ public class Product implements Serializable {
 
 	private String description;
 
-	@NotNull
-	@DecimalMin("0.01")
 	private BigDecimal price;
 
 	@Column(name="product_name")
-	@NotBlank
 	private String productName;
 
-	@DecimalMin("0.00")
-	@DecimalMax("0.99")
 	private BigDecimal vat;
 
 	public Product() {

PC27-SklepHibernate/src/main/java/sklep/przyklady_hibernate/OdczytajJedenProdukt.java

+package sklep.przyklady_hibernate;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.EntityManagerFactory;
+import jakarta.persistence.Persistence;
+import sklep.model.Product;
+
+public class OdczytajJedenProdukt {
+
+	public static void main(String[] args) {
+		EntityManagerFactory emf = Persistence.createEntityManagerFactory("sklep");
+		EntityManager em = emf.createEntityManager();
+		System.out.println("Mam EntityManagera: " + em);
+		
+		Product product = em.find(Product.class, 2);
+		System.out.println("Mam obiekt: " + product);
+		System.out.println(product.getProductName() + " za cenę " + product.getPrice());
+
+	}
+
+}