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我正在使用ScalarDB. 它提供超过Cassandra. - https://scalar-labs.github.io/scalardb/javadoc/

ScalarDB是Java基于的，我在Scala代码中使用它

Cassandra在using中插入值的方法Scalardb是调用Put方法。例如。

def add() = {
    val putAnswer: Put = new Put(pAnswerKey)
      .forNamespace(keyspaceName)
      .forTable(tablename)
      .withCondition(mutationCondition)
      .withValue(new TextValue("answer_id", answer.answer_id.get.toString))
      .withValue(new TextValue("image", convertImageToString(imageData)))
      .withValue(new TextValue("answer", convertAnswersFromModelToString(answer.answer)))
      .withValue(new BigIntValue("creation_year", answer.creationYear.getOrElse(0)))
      .withValue(new BigIntValue("creation_month", answer.creationMonth.getOrElse(0)))
      .withValue(new TextValue("notes", answer.notes.getOrElse("")))
    
    logger.trace(s"putting answer ${putAnswer}")
    transaction.put(putAnswer)
....
}

我想add通过捕获传递给put. 我被困在一个我不知道如何将Value传递给put. 如何键入强制转换为所需的值？

repository.add(repoTestEnv.mockDistributedTransaction,repoTestEnv.answerTestEnv.answerOfAPracticeQuestion) val argumentCaptor = ArgumentCaptor.forClassPut,Put

  verify(repoTestEnv.mockDistributedTransaction,times(1)).put(argumentCaptor.capture())
  val argumentsInvoked = argumentCaptor.getAllValues
  argumentsInvoked.size mustBe 1
  val argument = argumentsInvoked.get(0)
  val values = argument.getValues //this is util.Map[String,Value[_]]
  logger.trace(s"arguments were ${argument.getValues}") //this prints the following

{answer_id=TextValue{name=answer_id, value=Optional[11111111-1111-1111-1111-111111111111]}, image=TextValue{name=image, value=Optional[{"image":["image1binarydata","image2binarydata"]}]}, answer=TextValue{name=answer, value=Optional[{"answer":[{"filename":"c.js","answer":"some answer"}]}]}, creation_year=BigIntValue{name=creation_year, value=2019}, creation_month=BigIntValue{name=creation_month, value=12}, notes=TextValue{name=notes, value=Optional[some notes]}}

问题 - 我不知道如何进一步选择每个值并进行比较。

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2 回答 2

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作为Value一个接口，我必须像下面这样对它进行类型转换。

val value = values.get("answer_id").asInstanceOf[TextValue]
      value.getString.isPresent mustBe true
      value.getString.get() mustBe "11111111-1111-1111-1111-111111111111"
于 2020-09-14T08:50:16.817 回答
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为什么不创建一个预期的 Put 并使用 Mockito 进行验证？

于 2020-09-15T04:29:13.183 回答