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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin: 10px 0 0; margin-top: 0">import java.util.List;<br> import javax.persistence.EntityManager;</p> <p style="margin: 10px 0 0">public class Main {<br> Address address = new Address();<br> address.setLine1("test123");</p> <p style="margin: 10px 0 0"> Address address1 = new Address();<br> address1.setLine1("test456");</p> <p style="margin: 10px 0 0"> University university = new University();<br> university.setAddress(address1);<br> university.setName("OXF");</p> <p style="margin: 10px 0 0"> College college = new College();<br> college.setUniversity(university);<br> college.setAddress(address);</p> <p style="margin: 10px 0 0"> EntityDAO dao = new EntityDAOImpl();<br> try {<br> List<College> entity = dao.getEntity(college);<br> for (College a : entity) </p> { System.out.println(">>>>>>>>>>>>>>>>>>>>>>>" + a.getName()); } <p style="margin: 10px 0 0"> } catch (Exception e) </p> { // TODO Auto-generated catch block e.printStackTrace(); } <p style="margin: 10px 0 0">}</p> <p style="margin: 10px 0 0">import java.io.Serializable;<br> import javax.persistence.*;<br> import java.util.Set;</p> <p style="margin: 10px 0 0">@Entity<br> @Table(name="address")<br> @NamedQuery(name="Address.findAll", query="SELECT a FROM Address a")<br> public class Address implements Serializable {<br> private static final long serialVersionUID = 1L;</p> <p style="margin: 10px 0 0"> @Id<br> private Integer id;</p> <p style="margin: 10px 0 0"> private Integer pin;</p> <p style="margin: 10px 0 0"> private String line1;</p> <p style="margin: 10px 0 0"> private String line2;</p> <p style="margin: 10px 0 0"> private String phone;</p> <p style="margin: 10px 0 0"> //bi-directional many-to-one association to College<br> @OneToMany(mappedBy="address")<br> private Set<College> colleges;</p> <p style="margin: 10px 0 0"> //bi-directional many-to-one association to University<br> @OneToMany(mappedBy="address")<br> private Set<University> universities;</p> <p style="margin: 10px 0 0"> public Address() {<br> }</p> <p style="margin: 10px 0 0"> public Integer getId() </p> { return this.id; }<br> <br> public void setId(Integer id) { this.id = id; }<br> <br> public Integer getPin() { return this.pin; }<br> <br> public void setPin(Integer pin) { this.pin = pin; }<br> <br> public String getLine1() { return this.line1; }<br> <br> public void setLine1(String line1) { this.line1 = line1; }<br> <br> public String getLine2() { return this.line2; }<br> <br> public void setLine2(String line2) { this.line2 = line2; }<br> <br> public String getPhone() { return this.phone; }<br> <br> public void setPhone(String phone) { this.phone = phone; }<br> <br> public Set<College> getColleges() { return this.colleges; }<br> <br> public void setColleges(Set<College> colleges) { this.colleges = colleges; }<br> <br> public College addCollege(College college) { getColleges().add(college); college.setAddress(this); return college; }<br> <br> public College removeCollege(College college) { getColleges().remove(college); college.setAddress(null); return college; }<br> <br> public Set<University> getUniversities() { return this.universities; }<br> <br> public void setUniversities(Set<University> universities) { this.universities = universities; }<br> <br> public University addUniversity(University university) { getUniversities().add(university); university.setAddress(this); return university; }<br> <br> public University removeUniversity(University university) { getUniversities().remove(university); university.setAddress(null); return university; }<br> <br> }<br> <br> <br> import java.io.Serializable;<br> import javax.persistence.*;<br> import java.util.Set;<br> <br> <br> /**<br> * The persistent class for the university database table.<br> * <br> */<br> @Entity<br> @Table(name="university")<br> @NamedQuery(name="University.findAll", query="SELECT u FROM University u")<br> public class University implements Serializable {<br> private static final long serialVersionUID = 1L;<br> <br> @Id<br> private Integer id;<br> <br> private String name;<br> <br> //bi-directional many-to-one association to College<br> @OneToMany(mappedBy="university")<br> private Set<College> colleges;<br> <br> //bi-directional many-to-one association to Address<br> @ManyToOne<br> private Address address;<br> <br> public University() {<br> }<br> <br> public Integer getId() { return this.id; } <p style="margin: 10px 0 0"> public void setId(Integer id) </p> { this.id = id; }<br> <br> public String getName() { return this.name; }<br> <br> public void setName(String name) { this.name = name; }<br> <br> public Set<College> getColleges() { return this.colleges; }<br> <br> public void setColleges(Set<College> colleges) { this.colleges = colleges; }<br> <br> public College addCollege(College college) { getColleges().add(college); college.setUniversity(this); return college; }<br> <br> public College removeCollege(College college) { getColleges().remove(college); college.setUniversity(null); return college; }<br> <br> public Address getAddress() { return this.address; }<br> <br> public void setAddress(Address address) { this.address = address; }<br> <br> }<br> <br> <br> import java.io.Serializable;<br> import javax.persistence.*;<br> import java.util.Set;<br> <br> <br> /**<br> * The persistent class for the college database table.<br> * <br> */<br> @Entity<br> @Table(name="college")<br> @NamedQuery(name="College.findAll", query="SELECT c FROM College c")<br> public class College implements Serializable {<br> private static final long serialVersionUID = 1L;<br> <br> @Id<br> private Integer id;<br> <br> private String name;<br> <br> //bi-directional many-to-one association to Address<br> @ManyToOne<br> private Address address;<br> <br> //bi-directional many-to-one association to University<br> @ManyToOne<br> private University university;<br> <br> //bi-directional many-to-one association to Department<br> @OneToMany(mappedBy="college")<br> private Set<Department> departments;<br> <br> public College() {<br> }<br> <br> public Integer getId() { return this.id; }<br> <br> public void setId(Integer id) { this.id = id; } <p style="margin: 10px 0 0"> public String getName() </p> { return this.name; } <p style="margin: 10px 0 0"> public void setName(String name) </p> { this.name = name; } <p style="margin: 10px 0 0"> public Address getAddress() </p> { return this.address; } <p style="margin: 10px 0 0"> public void setAddress(Address address) </p> { this.address = address; } <p style="margin: 10px 0 0"> public University getUniversity() </p> { return this.university; } <p style="margin: 10px 0 0"> public void setUniversity(University university) </p> { this.university = university; } <p style="margin: 10px 0 0"> public Set<Department> getDepartments() </p> { return this.departments; } <p style="margin: 10px 0 0"> public void setDepartments(Set<Department> departments) </p> { this.departments = departments; } <p style="margin: 10px 0 0"> public Department addDepartment(Department department) </p> { getDepartments().add(department); department.setCollege(this); return department; } <p style="margin: 10px 0 0"> public Department removeDepartment(Department department) </p> { getDepartments().remove(department); department.setCollege(null); return department; } <p style="margin: 10px 0 0">}</p> </td>
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