QuerySelectExpression 查询选择子句

1. 结构声明

TS Declaration

class QuerySelectExpression extends LogicItem {
    distinct: boolean = false;
    star: boolean = true;
    selectElements: Array<QueryAggregateExpression | QueryFieldExpression> = [];
}

JSON Schema

{
    "type": "object",
    "properties": {
        "composedBy": {
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "changedTime": {
            "$ref": "#/definitions/long"
        },
        "label": {
            "type": "string"
        },
        "description": {
            "type": "string"
        },
        "folded": {
            "type": "boolean"
        },
        "offsetX": {
            "type": "number"
        },
        "offsetY": {
            "type": "number"
        },
        "typeAnnotation": {
            "$ref": "#/definitions/TypeAnnotation"
        },
        "breakpoint": {
            "type": "string",
            "enum": [
                "ENABLED",
                "DISABLED"
            ]
        },
        "distinct": {
            "type": "boolean"
        },
        "star": {
            "type": "boolean"
        },
        "selectElements": {
            "type": "array",
            "items": {
                "anyOf": [
                    {
                        "$ref": "#/definitions/QueryAggregateExpression"
                    },
                    {
                        "$ref": "#/definitions/QueryFieldExpression"
                    }
                ]
            }
        }
    },
    "required": [
        "distinct",
        "star",
        "selectElements"
    ],
    "additionalProperties": false
}

2. 节点示例

(1) 示例

AST 如下：

JSON

{
    "concept": "QuerySelectExpression",
    "distinct": false,
    "star": true,
    "selectElements": [
        {
            "concept": "QueryFieldExpression",
            "isDotStar": true,
            "entityAsName": "Product",
            "propertyName": "",
            "asName": ""
        }
    ]
}

YAML

concept: QuerySelectExpression
distinct: false
star: true
selectElements:
  - concept: QueryFieldExpression
    isDotStar: true
    entityAsName: Product
    propertyName: ""
    asName: ""

对应的代码如下：

文本化 NASL

select {
    product: Product,
}

Natural TS

.SELECT(() => ({
    product: Product,
}))

(2) 示例

AST 如下：

JSON

{
    "concept": "QuerySelectExpression",
    "distinct": false,
    "star": true,
    "selectElements": [
        {
            "concept": "QueryFieldExpression",
            "isDotStar": true,
            "entityAsName": "OrderProduct",
            "propertyName": "",
            "asName": ""
        },
        {
            "concept": "QueryFieldExpression",
            "isDotStar": true,
            "entityAsName": "OrderForm",
            "propertyName": "",
            "asName": ""
        },
        {
            "concept": "QueryFieldExpression",
            "isDotStar": true,
            "entityAsName": "Product",
            "propertyName": "",
            "asName": ""
        },
        {
            "concept": "QueryAggregateExpression",
            "asName": "totalAmount",
            "aggregateName": "SUM",
            "aggregateParam": {
                "concept": "QueryFieldExpression",
                "isDotStar": false,
                "entityAsName": "OrderProduct",
                "propertyName": "amount",
                "asName": ""
            }
        }
    ]
}

YAML

concept: QuerySelectExpression
distinct: false
star: true
selectElements:
  - concept: QueryFieldExpression
    isDotStar: true
    entityAsName: OrderProduct
    propertyName: ""
    asName: ""
  - concept: QueryFieldExpression
    isDotStar: true
    entityAsName: OrderForm
    propertyName: ""
    asName: ""
  - concept: QueryFieldExpression
    isDotStar: true
    entityAsName: Product
    propertyName: ""
    asName: ""
  - concept: QueryAggregateExpression
    asName: totalAmount
    aggregateName: SUM
    aggregateParam:
      concept: QueryFieldExpression
      isDotStar: false
      entityAsName: OrderProduct
      propertyName: amount
      asName: ""

对应的代码如下：

文本化 NASL

select {
    orderProduct: OrderProduct,
    orderForm: OrderForm,
    product: Product,
    totalAmount: SUM(OrderProduct.amount),
}

Natural TS

.SELECT(() => ({
    orderProduct: OrderProduct,
    orderForm: OrderForm,
    product: Product,
    totalAmount: SUM(OrderProduct.amount),
}))