如何在ObjectBox中设置复合唯一约束

@Entity
public class MyClass {
    @Id
    private long id;

    @Unique
    private String field1;

    @Unique
    private String field2;
    
    // 其他字段和方法
}

BoxStore boxStore = MyObjectBox.builder()
        .androidContext(context.getApplicationContext())
        .entity(MyClass.class) // 添加实体类
        .build();

Box<MyClass> myClassBox = boxStore.boxFor(MyClass.class);

try {
    MyClass myObject = new MyClass();
    myObject.setField1("value1");
    myObject.setField2("value2");
    myClassBox.put(myObject);
} catch (UniqueViolationException e) {
    // 处理唯一约束冲突异常
}