Salat MongoDB参数类型不匹配

Question

我有一个使用SalatDAO扩展映射到Salat库的案例类。在这种情况下，其中一个参数是Enum类型。当我运行它从数据库中读取数据，我得到以下错误：

com.novus.salat.util.ToObjectGlitch: 

    argument type mismatch 

    $anon$2(class domain.content.Question @ com.novus.salat.global.package$$anon$1@294ce5eb) toObject failed on: 
    SYM: domain.content.Question 
    CONSTRUCTOR 
public domain.content.Question(int,java.lang.String,scala.collection.immutable.List<domain.content.Answer>,scala.Enumeration$Value,boolean) 

---------- CONSTRUCTOR EXPECTS FOR PARAM [0] -------------- 
NAME:   id 
TYPE:   int 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: java.lang.Integer 
VALUE: 
1001 
------------------------------------------------------------ 


---------- CONSTRUCTOR EXPECTS FOR PARAM [1] -------------- 
NAME:   text 
TYPE:   java.lang.String 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: java.lang.String 
VALUE: 
Which is a valid java access modifier? 
------------------------------------------------------------ 


---------- CONSTRUCTOR EXPECTS FOR PARAM [2] -------------- 
NAME:   answers 
TYPE:   scala.collection.immutable.List<domain.content.Answer> 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: scala.collection.immutable.$colon$colon[B] 
VALUE: 
List(Answer(1,private,true,None), Answer(2,personal,false,None), Answer(3,protect,false,None), Answe... 
------------------------------------------------------------ 


---------- CONSTRUCTOR EXPECTS FOR PARAM [3] -------------- 
NAME:   quesType 
TYPE:   scala.Enumeration$Value 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: scala.None$[scala.runtime.Nothing$] 
VALUE: 
None 
------------------------------------------------------------ 


---------- CONSTRUCTOR EXPECTS FOR PARAM [4] -------------- 
NAME:   isSourceCodeAvailable 
TYPE:   boolean 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: java.lang.Boolean 
VALUE: 
false 
------------------------------------------------------------ 

这里是具有萨拉特注释枚举对象。我错过了什么吗？

@EnumAs(strategy = EnumStrategy.BY_ID) 
object QuestionTypeEnum extends Enumeration { 

    val MULTI_CHOICE = Value("MULTI_CHOICE") 
    val RADIO_BUTTON = Value("RADIO_BUTTON") 
    val DRAG_AND_DROP = Value("DRAG_AND_DROP") 

} 

Answer 1

的

---------- CONSTRUCTOR EXPECTS FOR PARAM [3] -------------- 
NAME:   quesType 
TYPE:   scala.Enumeration$Value 
DEFAULT ARG [Missing, but unnecessary because input value was supplied] 
@Ignore  false 
---------- CONSTRUCTOR INPUT ------------------------ 
TYPE: scala.None$[scala.runtime.Nothing$] 
VALUE: 
None 

该错误消息表明，你期待一个枚举值，但该数据库包含一个Option[Enumeration.Value]。