Merge pull request #5016 from MajewskiKrzysztof/BAEL-2097

BAEL-2056

hibernate5/src/main/java/com/baeldung/hibernate/joincolumn/Address.java

@@ -0,0 +1,34 @@
+package com.baeldung.hibernate.joincolumn;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class Address {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @Column(name = "ZIP")
+    private String zipCode;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getZipCode() {
+        return zipCode;
+    }
+
+    public void setZipCode(String zipCode) {
+        this.zipCode = zipCode;
+    }
+}

hibernate5/src/main/java/com/baeldung/hibernate/joincolumn/Email.java

@@ -0,0 +1,47 @@
+package com.baeldung.hibernate.joincolumn;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+
+@Entity
+public class Email {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    private String address;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "employee_id")
+    private Employee employee;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getAddress() {
+        return address;
+    }
+
+    public void setAddress(String address) {
+        this.address = address;
+    }
+
+    public Employee getEmployee() {
+        return employee;
+    }
+
+    public void setEmployee(Employee employee) {
+        this.employee = employee;
+    }
+}

hibernate5/src/main/java/com/baeldung/hibernate/joincolumn/Employee.java

@@ -0,0 +1,36 @@
+package com.baeldung.hibernate.joincolumn;
+
+import java.util.List;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.OneToMany;
+
+@Entity
+public class Employee {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @OneToMany(fetch = FetchType.LAZY, mappedBy = "employee")
+    private List<Email> emails;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public List<Email> getEmails() {
+        return emails;
+    }
+
+    public void setEmails(List<Email> emails) {
+        this.emails = emails;
+    }
+}

hibernate5/src/main/java/com/baeldung/hibernate/joincolumn/Office.java

@@ -0,0 +1,41 @@
+package com.baeldung.hibernate.joincolumn;
+
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinColumns;
+import javax.persistence.ManyToOne;
+
+@Entity
+public class Office {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumns({
+            @JoinColumn(name="ADDR_ID", referencedColumnName="ID"),
+            @JoinColumn(name="ADDR_ZIP", referencedColumnName="ZIP")
+    })
+    private Address address;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public Address getAddress() {
+        return address;
+    }
+
+    public void setAddress(Address address) {
+        this.address = address;
+    }
+}

hibernate5/src/test/java/com/baeldung/hibernate/joincolumn/JoinColumnIntegrationTest.java

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+package com.baeldung.hibernate.joincolumn;
+
+import com.baeldung.hibernate.HibernateUtil;
+import java.io.IOException;
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+
+public class JoinColumnIntegrationTest {
+
+    private Session session;
+    private Transaction transaction;
+
+    @Before
+    public void setUp() throws IOException {
+        session = HibernateUtil.getSessionFactory("hibernate-spatial.properties")
+                .openSession();
+        transaction = session.beginTransaction();
+    }
+
+    @After
+    public void tearDown() {
+        transaction.rollback();
+        session.close();
+    }
+
+    @Test
+    public void givenOfficeEntity_setAddress_shouldPersist() {
+        Office office = new Office();
+
+        Address address = new Address();
+        address.setZipCode("11-111");
+        office.setAddress(address);
+
+        session.save(office);
+        session.flush();
+        session.clear();
+    }
+
+    @Test
+    public void givenEmployeeEntity_setEmails_shouldPersist() {
+        Employee employee = new Employee();
+
+        Email email = new Email();
+        email.setAddress("example@email.com");
+        email.setEmployee(employee);
+
+        session.save(employee);
+        session.flush();
+        session.clear();
+    }
+
+}