Consider two tables as mentioned below -
Table1 (id_col, name_col)
Table2 (uid_col, code_col_1, code_col_2)
where,
id_col is primary key for Table1
uid_col is primary key for Table2
and, id_col has one to many relationship with both code_col_1 and code_col_2
Records could look like:-
Table1
1, xxx
2, yyy
Table2
11, 1, 2
12, 2, 1
12, 2, 2
How will the JPA look like in following classes?
Code:
@Entity
@Table(name = "Table1")
public class T1 {
@OneToMany(targetEntity=T2.class, mappedBy="??????", cascade=CascadeType.ALL)
private List<T2> t2; //???not sure about this
}
@Entity
@Table(name = "Table2")
public class T2 {
@ManyToOne
@JoinColumn(name="code_col_1")
private T1 t1; //???not sure what goes here
}
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