hierarchyItem.schema.json

{
  "HierarchyItem": {
    "@type": "HierarchyItem",
    "schemaVersion": 1,
    "@id": "URL",
    "elementId": "String",
    "parents": [
      {
        "parents(item)": {
          "@type": "Parents(item)",
          "parent": {
            "@type": "Parent"
          }
        }
      }
    ],
    "children": [
      {
        "children(item)": {
          "@type": "Children(item)",
          "child": {
            "@type": "Child"
          }
        }
      }
    ],
    "sortValue": "String",
    "genealogy": [
      {
        "genealogy(item)": "String"
      }
    ]
  }
}

{
  "HierarchyItem": {
    "@type": "HierarchyItem",
    "schemaVersion": 1,
    "@id": {
      "description": "Traversable URL of the hierarchy item record.",
      "type": "URL"
    },
    "elementId": {
      "description": "Stable identifier for the hierarchy item in the dataset.",
      "type": "String"
    },
    "parents": [
      {
        "description": "Parent references; empty array at the root.",
        "parents(item)": {
          "@type": "Parents(item)",
          "parent": {
            "@type": "Parent"
          }
        }
      }
    ],
    "children": [
      {
        "description": "Child references; empty array if the item is a leaf.",
        "children(item)": {
          "@type": "Children(item)",
          "child": {
            "@type": "Child"
          }
        }
      }
    ],
    "sortValue": {
      "description": "Sort order among siblings at the same level.",
      "type": "String"
    },
    "genealogy": [
      {
        "description": "Ordered ancestral elementIds, root first.",
        "genealogy(item)": {
          "type": "String"
        }
      }
    ]
  }
}