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Add api for vertex/edge batch update properties (#45)
Change-Id: I89baa7c0464b5a8573f63a1db910a18cd9f1ede9
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Linary authored and javeme committed Dec 25, 2019
1 parent 5884487 commit 2fa29bd490d2b6d1d489b6626de6206443422ed1
Showing 2 changed files with 281 additions and 9 deletions.
@@ -160,7 +160,134 @@ PUT http://localhost:8080/graphs/hugegraph/graph/edges/S1:peter>1>>S2:lop?action
}
```

#### 2.2.4 删除边属性
#### 2.2.4 批量更新边属性

##### 功能说明

与批量更新顶点属性类似

假设原边及属性为:

```json
{
"edges":[
{
"id":"S1:josh>2>>S2:ripple",
"label":"created",
"type":"edge",
"outV":"1:josh",
"outVLabel":"person",
"inV":"2:ripple",
"inVLabel":"software",
"properties":{
"weight":1,
"date":1512835200000
}
},
{
"id":"S1:marko>1>7JooBil0>S1:josh",
"label":"knows",
"type":"edge",
"outV":"1:marko",
"outVLabel":"person",
"inV":"1:josh",
"inVLabel":"person",
"properties":{
"weight":1,
"date":1361289600000
}
}
]
}
```

##### Method & Url

```
PUT http://127.0.0.1:8080/graphs/hugegraph/graph/edges/batch
```

##### Request Body

```json
{
"edges":[
{
"id":"S1:josh>2>>S2:ripple",
"label":"created",
"outV":"1:josh",
"outVLabel":"person",
"inV":"2:ripple",
"inVLabel":"software",
"properties":{
"weight":0.1,
"date":1522835200000
}
},
{
"id":"S1:marko>1>7JooBil0>S1:josh",
"label":"knows",
"outV":"1:marko",
"outVLabel":"person",
"inV":"1:josh",
"inVLabel":"person",
"properties":{
"weight":0.2,
"date":1301289600000
}
}
],
"update_strategies":{
"weight":"SUM",
"date":"BIGGER"
},
"check_vertex": false,
"create_if_not_exist":true
}
```

##### Response Status

```json
200
```

##### Response Body

```json
{
"edges":[
{
"id":"S1:josh>2>>S2:ripple",
"label":"created",
"type":"edge",
"outV":"1:josh",
"outVLabel":"person",
"inV":"2:ripple",
"inVLabel":"software",
"properties":{
"weight":1.1,
"date":1522835200000
}
},
{
"id":"S1:marko>1>7JooBil0>S1:josh",
"label":"knows",
"type":"edge",
"outV":"1:marko",
"outVLabel":"person",
"inV":"1:josh",
"inVLabel":"person",
"properties":{
"weight":1.2,
"date":1301289600000
}
}
]
}
```

#### 2.2.5 删除边属性

##### Method & Url

@@ -203,7 +330,7 @@ PUT http://localhost:8080/graphs/hugegraph/graph/edges/S1:peter>1>>S2:lop?action
}
```

#### 2.2.5 获取符合条件的边
#### 2.2.6 获取符合条件的边

##### Params

@@ -401,7 +528,7 @@ GET http://127.0.0.1:8080/graphs/hugegraph/graph/edges?page=002500100753313a6a6f

此时`"page": null`表示已经没有下一页了。

#### 2.2.6 根据Id获取边
#### 2.2.7 根据Id获取边

##### Method & Url

@@ -433,7 +560,7 @@ GET http://localhost:8080/graphs/hugegraph/graph/edges/S1:peter>1>>S2:lop
}
```

#### 2.2.7 根据Id删除边
#### 2.2.8 根据Id删除边

##### Method & Url

@@ -171,7 +171,152 @@ PUT http://127.0.0.1:8080/graphs/hugegraph/graph/vertices/"1:marko"?action=appen
}
```

#### 2.1.4 删除顶点属性
#### 2.1.4 批量更新顶点属性

##### 功能说明

批量更新顶点的属性,并支持多种更新策略,包括

- SUM: 数值累加
- BIGGER: 两个数字/日期取更大的
- SMALLER: 两个数字/日期取更小的
- UNION: Set属性取并集
- INTERSECTION: Set属性取交集
- APPEND: List属性追加元素
- ELIMINATE: List/Set属性删除元素
- OVERRIDE: 覆盖已有属性,如果新属性为null,则仍然使用旧属性

假设原顶点及属性为:

```json
{
"vertices":[
{
"id":"2:lop",
"label":"software",
"type":"vertex",
"properties":{
"name":"lop",
"lang":"java",
"price":328
}
},
{
"id":"1:josh",
"label":"person",
"type":"vertex",
"properties":{
"name":"josh",
"age":32,
"city":"Beijing",
"weight":0.1,
"hobby":[
"reading",
"football"
]
}
}
]
}
```

##### Method & Url

```
PUT http://127.0.0.1:8080/graphs/hugegraph/graph/vertices/batch
```

##### Request Body

```json
{
"vertices":[
{
"label":"software",
"type":"vertex",
"properties":{
"name":"lop",
"lang":"c++",
"price":299
}
},
{
"label":"person",
"type":"vertex",
"properties":{
"name":"josh",
"city":"Shanghai",
"weight":0.2,
"hobby":[
"swiming"
]
}
}
],
"update_strategies":{
"price":"BIGGER",
"age":"OVERRIDE",
"city":"OVERRIDE",
"weight":"SUM",
"hobby":"UNION"
},
"create_if_not_exist":true
}
```

##### Response Status

```json
200
```

##### Response Body

```json
{
"vertices": [
{
"id": "2:lop",
"label": "software",
"type": "vertex",
"properties": {
"name": "lop",
"lang": "c++",
"price": 328
}
},
{
"id": "1:josh",
"label": "person",
"type": "vertex",
"properties": {
"name": "josh",
"age": 32,
"city": "Shanghai",
"weight": 0.3,
"hobby": [
"swiming",
"reading",
"football"
]
}
}
]
}
```

结果分析:

- lang 属性未指定更新策略,直接用新值覆盖旧值,无论新值是否为null;
- price 属性指定 BIGGER 的更新策略,旧属性值为328,新属性值为299,所以仍然保留了旧属性值328;
- age 属性指定 OVERRIDE 更新策略,而新属性值中未传入age,相当于age为null,所以仍然保留了原属性值32;
- city 属性也指定了 OVERRIDE 更新策略,且新属性值不为null,所以覆盖了旧值;
- weight 属性指定了 SUM 更新策略,旧属性值为0.1,新属性值为0.2,最后的值为0.3;
- hobby 属性(基数为Set)指定了 UNION 更新策略,所以新值与旧值取了并集;

其他的更新策略使用方式可以类推,不再赘述。

#### 2.1.5 删除顶点属性

##### Method & Url

@@ -222,7 +367,7 @@ PUT http://127.0.0.1:8080/graphs/hugegraph/graph/vertices/"1:marko"?action=elimi
}
```

#### 2.1.5 获取符合条件的顶点
#### 2.1.6 获取符合条件的顶点

##### Params

@@ -446,7 +591,7 @@ GET http://localhost:8080/graphs/hugegraph/graph/vertices?page=001000100853313a7

此时`"page": null`表示已经没有下一页了。

#### 2.1.6 根据Id获取顶点
#### 2.1.7 根据Id获取顶点

##### Method & Url

@@ -484,7 +629,7 @@ GET http://localhost:8080/graphs/hugegraph/graph/vertices/"1:marko"
}
```

#### 2.1.7 根据Id删除顶点
#### 2.1.8 根据Id删除顶点

##### Method & Url

@@ -496,4 +641,4 @@ DELETE http://localhost:8080/graphs/hugegraph/graph/vertices/"1:marko"

```json
204
```
```

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