one to many jpa relationship
- by user309944
Hai
I have created two table
first table as student
package com.crimson.rship;
import javax.persistence.Basic;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
@Entity(name="student")
public class student {
@Id
private String stumailid;
@Basic
private String fathername;
@Basic
private String mothername;
@Basic
private String doa;
@Basic
private String dob;
public student(String stumailid,String fathername,String mothername,String doa,String dob)
{
// TODO Auto-generated constructor stub
this.stumailid=stumailid;
this.fathername=fathername;
this.mothername=mothername;
this.doa=doa;
this.dob=dob;
}
public void setStumailid(String stumailid) {
this.stumailid = stumailid;
}
public String getStumailid() {
return stumailid;
}
public void setFathername(String fathername) {
this.fathername = fathername;
}
public String getFathername() {
return fathername;
}
public void setMothername(String mothername) {
this.mothername = mothername;
}
public String getMothername() {
return mothername;
}
public void setDoa(String doa) {
this.doa = doa;
}
public String getDoa() {
return doa;
}
public void setDob(String dob) {
this.dob = dob;
}
public String getDob() {
return dob;
}
}
Second table as mark
package com.crimson.rship;
import java.util.Collection;
import javax.persistence.Basic;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.OneToMany;
@Entity(name="mark")
public class mark {
@Id
private String stumailid;
@Basic
private String fathername;
@Basic
private String mothername;
@OneToMany(mappedBy="mark",targetEntity=student.class,fetch=FetchType.EAGER)
private Collection orders;
public mark(String stumailid,String fathername,String mothername)
{
// TODO Auto-generated constructor stub
this.stumailid=stumailid;
this.fathername=fathername;
this.mothername=mothername;
}
public void setStumailid(String stumailid) {
this.stumailid = stumailid;
}
public String getStumailid() {
return stumailid;
}
public void setFathername(String fathername) {
this.fathername = fathername;
}
public String getFathername() {
return fathername;
}
public void setMothername(String mothername) {
this.mothername = mothername;
}
public String getMothername() {
return mothername;
}
public void setOrders(Collection orders) {
this.orders = orders;
}
public Collection getOrders() {
return orders;
}
}
But this above coding working is not working correctly.can any one help me
Thanks in advance
