[BAEL-4601] How to convert a Hibernate proxy to a real entity object

* Adds Domain Models * Adds Integration Tests
2021-01-05 01:32:23 +08:00
parent f63058acb6
commit 6daa38007c
6 changed files with 257 additions and 0 deletions
@@ -0,0 +1,20 @@
+package com.baeldung.jpa.hibernateunproxy;
+
+import javax.persistence.Entity;
+import java.math.BigDecimal;
+
+@Entity
+public class CreditCardPayment extends Payment {
+
+    private String cardNumber;
+
+    CreditCardPayment(BigDecimal amount, WebUser webUser, String cardNumber) {
+        this.amount = amount;
+        this.webUser = webUser;
+        this.cardNumber = cardNumber;
+    }
+
+    protected CreditCardPayment() {
+    }
+
+}
@@ -0,0 +1,47 @@
+package com.baeldung.jpa.hibernateunproxy;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.Inheritance;
+import javax.persistence.InheritanceType;
+import javax.persistence.ManyToOne;
+import java.math.BigDecimal;
+import java.util.Objects;
+
+@Entity
+@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
+public abstract class Payment {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    protected WebUser webUser;
+
+    protected BigDecimal amount;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
+
+        Payment payment = (Payment) o;
+
+        return Objects.equals(id, payment.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    protected Payment() {
+    }
+
+}
@@ -0,0 +1,53 @@
+package com.baeldung.jpa.hibernateunproxy;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToOne;
+import java.util.Objects;
+import java.util.UUID;
+
+@Entity
+public class PaymentReceipt {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    private Payment payment;
+
+    private String transactionNumber;
+
+    PaymentReceipt(Payment payment) {
+        this.payment = payment;
+        this.transactionNumber = UUID.randomUUID().toString();
+    }
+
+    public Payment getPayment() {
+        return payment;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
+
+        PaymentReceipt that = (PaymentReceipt) o;
+
+        return Objects.equals(id, that.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    protected PaymentReceipt() {
+    }
+
+}
@@ -0,0 +1,42 @@
+package com.baeldung.jpa.hibernateunproxy;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import java.util.Objects;
+
+@Entity
+public class WebUser {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String name;
+
+    WebUser(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o)
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
+
+        WebUser webUser = (WebUser) o;
+
+        return Objects.equals(id, webUser.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    protected WebUser() {
+    }
+
+}