package com.plannaplan.entities;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;

/**
 *  Entity that keeps user exchange offer. 
 */
@Entity
public class Exchange {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @OneToOne
    @JoinColumn(name = "owned_id", unique = true)
    private Assignment ownedAssignment;
   
    @OneToOne
    @JoinColumn(name = "desired_id")
    private Groups desiredAssignment;
    
    public Exchange() {

    }

    public Exchange(Assignment ownedAssignment, Groups desiredAssignment){
        this.ownedAssignment = ownedAssignment;
        this.desiredAssignment = desiredAssignment;
    }

    
    /** 
     * @return Long ID in database
     */
    public Long getId(){
        return this.id;
    }

    
    /** 
     * @return Groups Target group
     */
    public Groups getDesiredAssignment() {
        return desiredAssignment;
    }

    
    /** 
     * @param desiredAssignment Target group
     */
    public void setDesiredAssignment(Groups desiredAssignment) {
        this.desiredAssignment = desiredAssignment;
    }

    
    /** 
     * @return Assignment Owned assignment
     */
    public Assignment getOwnedAssignment() {
        return ownedAssignment;
    }

    
    /** 
     * @param ownedAssignment Owned assignment
     */
    public void setOwnedAssignment(Assignment ownedAssignment) {
        this.ownedAssignment = ownedAssignment;
    }
}