Hibernate: How to annotate three tables in one join table?

Question

How to annotate it?

Tables:

GROUPS

id | int |

name | text |

TEACHERS

id | int |

name | text |

SUBJECTS

id | int |

name | text |

I need to annotate them with

GROUP_SUBJECT_TEACHER

id_group | int |

id_subject | int |

id_teacher | int |

Answer 1

GROUP_SUBJECT_TEACHER will be mapped as an Entity called GroupSubjectTeacher :

each of Group, Teacher and Subject will have OneToMany relationship with GroupSubjectTeacher and GroupSubjectTeacher will have ManyToOne relationship with each of other entities

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