Scala用类(Setters/Getters)重新赋值到Val

Question

我在Scala中创建了一个自定义类，如下所示：

class DQOpsStoreProfileStatusS extends Serializable{
  final val serialVersionUID = 1l
  private var _id:Int = _
  private var _runStatusId:Int = _
  private var _lakeHdfsPath:String = _
  def id = this._id
  def id_ = (_id:Int) = this._id = _id
  def runStatusId = this._runStatusId
  def runStatusId_ = (_runStatusId:Int) = this._runStatusId = _runStatusId
  def lakeHdfsPath = this._lakeHdfsPath
  def lakeHdfsPath_ = (_lakeHdfsPath:String) = this._lakeHdfsPath = _lakeHdfsPath
}

我在另一个看起来像这样的对象中引用了这个类：

 var colResult = new DQOpsStoreProfileStatusS
        colResult.fieldIndex = curIndex
        colResult.lakeHdfsPath = inputFileLocation

我的两个二传手在抱怨"重新分配给瓦尔"。我看了一堆例子，不明白我做错了什么？

Answer 1

setter的方法名应以_=结尾，不带空格：def id_=(_id:Int)等。您定义的方法不带参数，称为id_、runStatusId_和lakeHdfsPath_。