SocialMedia

package com.ann.model;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.OneToMany;
import javax.persistence.Table;

import org.hibernate.annotations.LazyCollection;
import org.hibernate.annotations.LazyCollectionOption;

import com.fasterxml.jackson.annotation.JsonIgnore;

@Entity
@Table(name="social_media")
public class SocialMedia implements Serializable {
	
	private Long idSocialMedia;
    
    private String name;
    
    private String icon;
    
    private List<TeacherSocialMedia> teacherSocialMedias = new ArrayList<TeacherSocialMedia>();

    public SocialMedia(String name, String icon) {
        this.name = name;
        this.icon = icon;
    }

    public SocialMedia() {
    }
    
    public SocialMedia(Long idSocialMedia) {
    	this.idSocialMedia = idSocialMedia;
    }
    
    public SocialMedia(String name) {
    	this.name = name;
    }
    
    @Id
	@Column(name="id_social_media")
	@GeneratedValue(strategy=GenerationType.IDENTITY) 
    public Long getIdSocialMedia() {
        return idSocialMedia;
    }

    public void setIdSocialMedia(Long idSocialMedia) {
        this.idSocialMedia = idSocialMedia;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
    @Column(name="icon")
    public String getIcon() {
        return icon;
    }

    public void setIcon(String icon) {
        this.icon = icon;
    }
    
//    @OneToMany//(fetch = FetchType.LAZY, mappedBy ="pk.social")
//    @JsonIgnore
//  @JoinTable(name="teacher_social_media",joinColumns=@JoinColumn(name="id_social_media"))
   
    @OneToMany
    @JoinColumn(name="id_social_media")
    @JsonIgnore
    public List<TeacherSocialMedia> getTeacherSocialMedias() {
		return teacherSocialMedias;
	}

	public void setTeacherSocialMedias(List<TeacherSocialMedia> teacherSocialMedias) {
		this.teacherSocialMedias = teacherSocialMedias;
	}
    
    
}

Teacher

package com.ann.model;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToMany;
import javax.persistence.Table;

import org.hibernate.annotations.LazyCollection;
import org.hibernate.annotations.LazyCollectionOption;

import com.fasterxml.jackson.annotation.JsonBackReference;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonManagedReference;

@Entity
@Table(name="teacher")
public class Teacher implements Serializable {
	
	private Long idTeacher;
	
	private String name;
	
	private String avatar;
	
	private List<TeacherSocialMedia> teacherSocialMedias = new ArrayList<TeacherSocialMedia>();
	
	private List<Course> courses;
	
	public Teacher() {
		super();
	}
	public Teacher(Long idTeqcher) {
		super();
		this.idTeacher = idTeacher;
	}
	public Teacher(String name, String avatar, List<TeacherSocialMedia> teacherSocialMedias) {
		super();
		this.name = name;
		this.avatar = avatar;
		this.teacherSocialMedias = teacherSocialMedias;
	}
	@Id
	@Column(name="id_teacher")
	@GeneratedValue(strategy=GenerationType.IDENTITY)
	public Long getIdTeacher() {
		return idTeacher;
	}
	public void setIdTeacher(Long idTeacher) {
		this.idTeacher = idTeacher;
	}
	@Column(name="name")
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	@Column(name="avatar")
	public String getAvatar() {
		return avatar;
	}
	public void setAvatar(String avatar) {
		this.avatar = avatar;
	}
//	@OneToMany(fetch = FetchType.EAGER)//, mappedBy = "pk.teacher", cascade=CascadeType.ALL)
//	@JsonIgnore
//  @JoinTable(name="teacher_social_media",joinColumns=@JoinColumn(name="id_teacher"))
	@OneToMany(fetch = FetchType.EAGER)
	@JoinColumn(name="id_teacher")
	public List<TeacherSocialMedia> getTeacherSocialMedias() {
		return teacherSocialMedias;
	}
	public void setTeacherSocialMedias(List<TeacherSocialMedia> teacherSocialMedias) {
		this.teacherSocialMedias = teacherSocialMedias;
	}
	@OneToMany(mappedBy="teacher")  
	@JsonIgnore
	public List<Course> getCourses() {
		return courses;
	}
	public void setCourses(List<Course> courses) {
		this.courses = courses;
	}
	
	

}

TeacherSocialMedia

package com.ann.model;

import java.io.Serializable;

import javax.persistence.AssociationOverride;
import javax.persistence.AssociationOverrides;
import javax.persistence.Column;
import javax.persistence.Embeddable;
import javax.persistence.EmbeddedId;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.IdClass;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;
import javax.persistence.Transient;

import com.fasterxml.jackson.annotation.JsonIgnore;

@Entity
@Table(name = "teacher_social_media")
public class TeacherSocialMedia implements Serializable {

	
	@Column(name="nickname")
	private String nickname;
	
	@Id
	@ManyToOne(fetch=FetchType.LAZY)
    @JoinColumn(name="id_teacher")
	@JsonIgnore
	private Teacher teacher;
	
	@Id
	@ManyToOne(fetch=FetchType.LAZY)
    @JoinColumn(name="id_social_media")
	private SocialMedia socialMedia;
	
	
	public TeacherSocialMedia() {
		super();
		// TODO Auto-generated constructor stub
	}

	public String getNickname() {
		return nickname;
	}
	public void setNickname(String nickname) {
		this.nickname = nickname;
	}
//
//
//	public Long getIdTeacher() {
//		return idTeacher;
//	}
//
//
//	public void setIdTeacher(Long idTeacher) {
//		this.idTeacher = idTeacher;
//	}
//
//
//	public Long getIdSocialMedia() {
//		return idSocialMedia;
//	}
//
//
//	public void setIdSocialMedia(Long idSocialMedia) {
//		this.idSocialMedia = idSocialMedia;
//	}


	public Teacher getTeacher() {
		return teacher;
	}


	public void setTeacher(Teacher teacher) {
		this.teacher = teacher;
	}


	public SocialMedia getSocialMedia() {
		return socialMedia;
	}


	public void setSocialMedia(SocialMedia socialMedia) {
		this.socialMedia = socialMedia;
	}
	
	
//	@EmbeddedId
//	public TeacherSocialMediaId getTeacherSocialMediaId() {
//		return teacherSocialMediaId;
//	}
//	public void setTeacherSocialMediaId(TeacherSocialMediaId teacherSocialMediaId) {
//		this.teacherSocialMediaId = teacherSocialMediaId;
//	}
	
//	@Transient
//	public Teacher getTeacher() {
//		return teacherSocialMediaId.getTeacher();
//	}
//	public void setTeacher(Teacher teacher) {
//		teacherSocialMediaId.setTeacher(teacher);
//	}
//	@Transient
//	public SocialMedia getSocialMedia() {
//		return teacherSocialMediaId.getSocialMedia();
//	}
//	public void setSocialMedia(SocialMedia socialMedia) {
//		teacherSocialMediaId.setSocialMedia(socialMedia);
//	}
	
	
	
	
	
}