JCH
Java Community | Help. Code. Learn.•2mo ago
Victor

Best entity relationship approach

Im storing transactions in my application that consist of a sender and a receiver, this is my entity class for it: 
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private User sender;
    private User receiver;
    private Item item;
    private LocalDateTime createdAt;
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;
    private User sender;
    private User receiver;
    private Item item;
    private LocalDateTime createdAt;
what would be the best approach for the relationship here? create a oneToMany relationship with both sender and receiver? Or just store the IDs for sender and receiver instead of the User object?
5 Replies
JavaBot
JavaBot•2mo ago
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dan1st
dan1st•2mo ago
I'd just create to onetomany relationships
Victor
VictorOP•2mo ago
how should i go about mapping on the User entity side? if it can be mapped by either sender or receiver? the user entity has a list of transactions which i would like to include every transaction regardless if he is a sender or a receiver or do i need to create two separate lists to map to sender and receiver
dan1st
dan1st•2mo ago
You can do both or none whatever you need
JavaBot
JavaBot•2mo ago
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