@ManyToOne
@JoinColumns(value = {
@JoinColumn(name = "BATCH_ID", referencedColumnName = "BATCH_ID", insertable = false, updatable = false),
@JoinColumn(name = "FOO_ID", referencedColumnName = "FOO_ID", insertable = false, updatable = false),
@JoinColumn(name = "BAR_ID", referencedColumnName = "BAR_ID", insertable = false, updatable = false)
}, foreignKey = @ForeignKey(name = "none", value = ConstraintMode.NO_CONSTRAINT))
private FooBar fooBar;