using @ in Scala match case

There is an option In Scala match case to use Boolean extractors in match case .
The  unapply method  instead of returning an object returns Boolean expression.
The following example demonstrates it :

class  DataEntity (val mValue:Int) extends IDataEntity
object DataEntityValueChecker {
  def unapply(pIDataEntity: IDataEntity): Boolean = 
    {
      pIDataEntity.mValue > 164
    }
}
object MeshamemLiMavet10 extends App {
   println ("Starting MeshamemLiMavet 10 ")
    val theIDataEntity: IDataEntity = new DataEntity(165)
    theIDataEntity match {
        case pIDataEntity @ DataEntityValueChecker() => {println (pIDataEntity.mValue.toString() +  " > 164")}
        case _ => {println ( " > 164")}
   }

And the result:
Starting MeshamemLiMavet 10
165 > 164