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POCan add extra field(s) to @ManyToMany Hibernate extra table?
 

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    <p>I have these two class(table)</p> <pre><code>@Entity @Table(name = "course") public class Course { @Id @Column(name = "courseid") private String courseId; @Column(name = "coursename") private String courseName; @Column(name = "vahed") private int vahed; @Column(name = "coursedep") private int dep; @ManyToMany(fetch = FetchType.LAZY) @JoinTable(name = "student_course", joinColumns = @JoinColumn(name = "course_id"), inverseJoinColumns = @JoinColumn(name = "student_id")) private Set&lt;Student&gt; student = new HashSet&lt;Student&gt;(); //Some setter and getter </code></pre> <p>and this one:</p> <pre><code> @Entity @Table(name = "student") public class Student { @Id @Column(name="studid") private String stId; @Column(nullable = false, name="studname") private String studName; @Column(name="stmajor") private String stMajor; @Column(name="stlevel", length=3) private String stLevel; @Column(name="stdep") private int stdep; @ManyToMany(fetch = FetchType.LAZY) @JoinTable(name = "student_course" ,joinColumns = @JoinColumn(name = "student_id") ,inverseJoinColumns = @JoinColumn(name = "course_id") ) private Set&lt;Course&gt; course = new HashSet&lt;Course&gt;(); //Some setter and getter </code></pre> <p>After running this code an extra table was created in database(student_course), now I wanna know how can I add extra field in this table like (Grade, Date , and ... (I mean student_course table)) I see some solution but I don't like them, Also I have some problem with them:</p> <p><a href="http://boris.kirzner.info/blog/archives/2008/07/19/hibernate-annotations-the-many-to-many-association-with-composite-key/" rel="noreferrer">First Sample</a></p>
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    1. COYou can add one extra column using \@OrderColumn which is an int column used to store the sort order of a many2many relationship. I wish they would add a \@TempolalColumns to add a fromDate and toDate fields too
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      1. USNeil McGuigan
 

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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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