在Child

Question

我有多对多的映射表client_platform。我想强制hibernate从Platform表中选择platform_id，而不是在platform table上运行insert。

客户端：

@Id
@Column(
        name = "client_id",
        columnDefinition = "BINARY(16)"
)
private UUID id;

@Column(name = "client_name")
private String name;

@ManyToMany(
        fetch = FetchType.LAZY,
        cascade = {CascadeType.ALL}
)
@JoinTable(
        name = "client_platforms",
        joinColumns = @JoinColumn(
                name = "client_id",
                updatable = false,
                nullable = false
        ),
        inverseJoinColumns = @JoinColumn(
                name = "platform_id",
                updatable = false,
                nullable = false
        )
)
private Set<Platform> platforms;

平台：

@ManyToMany(
        mappedBy = "platforms",
        fetch = FetchType.LAZY,
        cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REMOVE}
)
private Set<Client> clients;

当我插入Client时，它会插入到Platform和client_platform连接表

中

如何在插入platform和client_platform表之前更改JPA注释以强制hibernate在平台上执行选择