如何在Java中为DynamoDB定义表时声明排序键

Question

我已经从aws控制台在DynamoDB中创建了一个表。 在为其编写代码时，我无法找到如何声明与分区键关联的排序键

    Table: Employee
    ----------------------------------------------
    deptId            | Partition key
    empId             | sort key for deptId
    creationDateTime  | global secondary index
    ----------------------------------------------

班级定义：

    @DynamoDBTable(tableName = "Employee")
    public class Employee {

      // I have created deptId as partition key
      @DynamoDBHashKey(attributeName = "deptId")
      private String dept;

      // I have created empId as sort key for deptId (partition key)
      private String empId;

      // I want to run search query on empId as well
      @DynamoDBIndexHashKey(attributeName = "empId", globalSecondaryIndexName = "empId-index")

      @DynamoDBIndexHashKey(attributeName = "creationDateTime", globalSecondaryIndexName = "creationDateTime-index")
      private String creationDateTime;
    }

我的问题是我应该使用什么注释以及在声明empId之前如何声明empId是deptId的排序键（这是一个分区键）

我已经搜索过并发现应该使用@DynamoDBIndexRangeKey但该注释确实将排序键与分区键链接

请提前帮助我，

Answer 1

定义排序键的注释是goRight

if((goRight-1)%870==0){
    clearInterval(interval);
   // goRight=1; //  <--   this is your problem 
}

Range Key Annotation

Answer 2

如果表具有复合主键（分区键和排序键），则必须在类映射中同时指定 DynamoDBHashKey 和 DynamoDBRangeKey 属性。

[DynamoDBTable("Reply")]
public class Reply {
   [DynamoDBHashKey] //PrimaryKey
   public int ThreadId { get; set; }
   [DynamoDBRangeKey] //SortKey
   public string Replenishment { get; set; }
   // Additional properties go here.
}