我有一个JSON架构：
{
"$schema": "http://myschema#",
"type": "object",
"properties": {
"RBox": {
"type": "array",
"items": { "$ref": "#/definitions/rboxItem" },
"uniqueItems": true
},
"TBox": {
"type": "array",
"items": { "$ref": "#/definitions/tboxItem" },
"uniqueItems": true
},
"ABox": {
"type": "array",
"minItems": 1,
"items": { "$ref": "#/definitions/aboxItem" },
"uniqueItems": true
}
},
"additionalProperties": false,
"required": [ "ABox" ],
"definitions": {
"rboxItem": {
"oneOf": [
{ "$ref": "#/definitions/inclusionRoleItem" },
{ "$ref": "#/definitions/transitiveRoleItem" }
]
},
"tboxItem": {
"oneOf": [
{ "$ref": "#/definitions/inclusionConceptItem" },
{ "$ref": "#/definitions/equalConceptItem" }
]
},
"aboxItem": {
"oneOf": [
{ "$ref": "#/definitions/ofTypeItem" },
{ "$ref": "#/definitions/inRelationItem" },
{ "$ref": "#/definitions/unequalItem" }
]
},
"inclusionRoleItem": {
"type": "object",
"properties": {
"op": { "enum": [ "inclusionR" ] },
"included": { "$ref": "#/definitions/roleItem" },
"including": { "$ref": "#/definitions/roleItem" }
},
"additionalProperties": false,
"required": [ "op", "included", "including" ]
},
"transitiveRoleItem": {
"type": "object",
"properties": {
"op": { "enum": [ "transitive" ] },
"arg": { "$ref": "#/definitions/roleItem" }
},
"additionalProperties": false,
"required": [ "op", "arg" ]
},
"inclusionConceptItem": {
"type": "object",
"properties": {
"op": { "enum": [ "inclusionT" ] },
"included": { "$ref": "#/definitions/concept" },
"including": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "included", "including" ]
},
"equalConceptItem": {
"type": "object",
"properties": {
"op": { "enum": [ "equal" ] },
"arg1": { "$ref": "#/definitions/concept" },
"arg2": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "arg1", "arg2" ]
},
"ofTypeItem": {
"type": "object",
"properties": {
"op": { "enum": [ "oftype" ] },
"individual": { "$ref": "#/definitions/identifier" },
"concept": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "individual", "concept" ]
},
"inRelationItem": {
"type": "object",
"properties": {
"op": { "enum": [ "inrelation" ] },
"start": { "$ref": "#/definitions/identifier" },
"end": { "$ref": "#/definitions/identifier" }
},
"additionalProperties": false,
"required": [ "op", "start", "end" ]
},
"unequalItem": {
"type": "object",
"properties": {
"op": { "enum": [ "unequal" ] },
"arg1": { "$ref": "#/definitions/identifier" },
"arg2": { "$ref": "#/definitions/identifier" }
},
"additionalProperties": false,
"required": [ "op", "arg1", "arg2" ]
},
"roleItem": {
"oneOf": [
{ "$ref": "#/definitions/roleName" },
{ "$ref": "#/definitions/inverseRoleName" }
]
},
"roleName": {
"$ref": "#/definitions/identifier"
},
"inverseRoleName": {
"type": "object",
"properties": {
"op": { "enum": [ "inverse" ] },
"arg": { "$ref": "#/definitions/roleName" }
},
"additionalProperties": false,
"required": [ "op", "arg" ]
},
"concept": {
"oneOf": [
{ "$ref": "#/definitions/top" },
{ "$ref": "#/definitions/bottom" },
{ "$ref": "#/definitions/conceptName" },
{ "$ref": "#/definitions/negativeConceptName" },
{ "$ref": "#/definitions/andItem" },
{ "$ref": "#/definitions/orItem" },
{ "$ref": "#/definitions/existsItem" },
{ "$ref": "#/definitions/forallItem" },
{ "$ref": "#/definitions/atleastItem" },
{ "$ref": "#/definitions/atmostItem" }
]
},
"top": {
"type": "object",
"properties": {
"op": { "enum": [ "top" ] }
},
"additionalProperties": false,
"required": [ "op" ]
},
"bottom": {
"type": "object",
"properties": {
"op": { "enum": [ "bottom" ] }
},
"additionalProperties": false,
"required": [ "op" ]
},
"conceptName": {
"$ref": "#/definitions/identifier"
},
"negativeConceptName": {
"type": "object",
"properties": {
"op": { "enum": [ "negation" ] },
"arg": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "arg" ]
},
"andItem": {
"type": "object",
"properties": {
"op": { "enum": [ "and" ] },
"arg1": { "$ref": "#/definitions/concept" },
"arg2": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "arg1", "arg2" ]
},
"orItem": {
"type": "object",
"properties": {
"op": { "enum": [ "or" ] },
"arg1": { "$ref": "#/definitions/concept" },
"arg2": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "arg1", "arg2" ]
},
"existsItem": {
"type": "object",
"properties": {
"op": { "enum": [ "exists" ] },
"role": { "$ref": "#/definitions/roleItem" },
"concept": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "role", "concept" ]
},
"forallItem": {
"type": "object",
"properties": {
"op": { "enum": [ "forall" ] },
"role": { "$ref": "#/definitions/roleItem" },
"concept": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "role", "concept" ]
},
"atleastItem": {
"type": "object",
"properties": {
"op": { "enum": [ "atleast" ] },
"number": {
"type": "integer",
"minimum": 1
},
"role": { "$ref": "#/definitions/roleItem" },
"concept": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "number", "role", "concept" ]
},
"atmostItem": {
"type": "object",
"properties": {
"op": { "enum": [ "atmost" ] },
"number": {
"type": "integer",
"minimum": 1
},
"role": { "$ref": "#/definitions/roleItem" },
"concept": { "$ref": "#/definitions/concept" }
},
"additionalProperties": false,
"required": [ "op", "number", "role", "concept" ]
},
"identifier": {
"type": "string",
"pattern": "^[a-zA-Z][a-zA-Z0-9]*$"
}
}
}
模式具有递归引用（例如概念可以是 orItem ，而后者又包含两个概念。当我尝试时要使用json-schema-validator验证以下有效的json，我得到fatal: validation loop: schema "#/definitions/concept/oneOf/0" visited twice for pointer "/ABox/0/concept/concept" of validated instance
json我试图验证：
{
"RBox": [],
"TBox": [],
"ABox": [{"op": "oftype", "individual": "a", "concept": {"op": "exists", "role": "r", "concept": "A"}}]
}
我做错了什么？是否可以使用具有递归定义的模式？如果是这样，为什么？