JSON schema to enforce array contents

Question

Hi all and thanks in advance.

I am attempting to create a JSON schema to enforce an array to contain one A and B object and N C objects, where A and B are C objects and

Answer 1

I have determined a solution that solves my problem, enforcing that A and B are present within the array, though does so positionally, thus requiring the JSON object I am validating to be ordered in some manner.

Working Schema

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Order dependent solution",

  "type": "array",
  "items": [
    {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "A Object",

      "type": "object",
      "required": ["id", "name"],

      "properties": {
        "id": {
          "type": "integer"
        },
        "name": {
          "type": "string",
          "enum": ["A"]
        }
      },
      "additionalProperties": false
    },
    {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "title": "B Object",

      "type": "object",
      "required": ["id", "name"],

      "properties": {
        "id": {
          "type": "integer"
        },
        "name": {
          "type": "string",
          "enum": ["B"]
        }
      },
      "additionalProperties": false
    }
  ],

  "additionalItems": {

    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "C Object",

    "type": "object",
    "required": ["id", "name"],

    "properties": {
      "id": {
        "type": "integer"
      },
      "name": {
        "type": "string"
      }
    },
    "additionalProperties": false  
  }

}

This JSON schema validates a JSON array containing a A object at index 0, a B object at index 1, and C objects composing all remaining elements. This solution is usable, and allows me to move forward with development, though a order independent solution would be prefered.

Any help is appreciated! :)

PS - These schemas are not optimized, and demonstrate redundancy, which I will remove in the final version by making use of the "id" and "$ref" keyword.