Question

我想描述一个具有数组类型属性的对象的模式。该数组中的项目必须属于同一类型。但是，对于该数组中的项，两个不同的对象可以具有不同的类型：

// object_1
{
  <...>,
  "array_of_some_type": [1, 2, 3, 4, 5],
  <...>
}

// object_2
{
  <...>,
  "array_of_some_type": ["one", "two", "three"],
  <...>
}

我尝试使用oneOf关键字：

{
  "type": "object",
  "properties": {
    <...>
    "array_of_some_type": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "items": {
        "oneOf": [
          { "type": "number" },
          { "type": "string" },
          { "type": "object" }
        ]
      },
      "additionalItems": false
    },
    <...>
  },
  "required": [ "array_of_some_type" ],
  "additionalProperties": false
}

但这是错误的，因为这个模式在我的case对象中对invalid是有效的：

// invalid_object
{
  <...>,
  "array_of_some_type": [1, "two", 3],
  <...>
}

正确的架构可能如下所示：

{
  "type": "object",
  "properties": {
    <...>
    "array_of_some_type": {
      "oneOf": [
        {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": { "type": "number" },
          "additionalItems": false
        },
        {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": { "type": "string" },
          "additionalItems": false
        },
        {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": { "type": "object" },
          "additionalItems": false
        }
      ]
    },
    <...>
  },
  "required": [ "array_of_some_type" ],
  "additionalProperties": false
}

但是有很多相同数组属性的副本。有没有办法调整第二个架构以避免重复？还是其他任何建议？

Answer 1

您只能放置oneOf子句中不同的部分。我认为JSON-Schema必须支持类似Java的泛型，才能表达清洁。

{
  "type": "object",
  "properties": {
    "array_of_some_type": {
      "type": "array",
      "minItems": 1,
      "uniqueItems": true,
      "oneOf": [
        { "items": { "type": "number" } },
        { "items": { "type": "string" } },
        { "items": { "type": "object" } }
      ]
    }
  },
  "required": [ "array_of_some_type" ],
  "additionalProperties": false
}

JSON对象的模式，当此类型在不同对象中不同时，具有相同类型的项目数组

1 个答案: