一对一

一对一关系表示两个实体之间存在一对一的关联

@OneToOne

relatedProperty 关联字段

relatedValue 关联值

在JoinColumn方生成字段,生成外键。

示例代码1:

  @OneToOne
  @JoinColumn(name = "data_source_id", referencedProperty = "id")
  private DYDataSource dyDataSource;

没有JoinColumn方不生成字段。

示例代码2：

  @OneToOne(relatedProperty = "type", relatedValue = "0")
  private DYMysql dyMysql;
  
  @OneToOne(relatedProperty = "type", relatedValue = "1")
  private DYOracle dyOracle;

@JoinColumn

辅助注解，作用于@man2one 和 @one2one

name 字段名

referencedProperty 关联字段默认id

dynamicGroup

columns: [{ …… }]

动态分组dynamicGroup

 {
    "displayName": "type",
    "name": "type",
    "dynamicGroup": {
      "options": [
        {
          "label": "mysql",
          "value": "0",
          "relatedProperty": "dyMysql"
        },
        {
          "label": "oracle",
          "value": "1",
          "relatedProperty": "dyOracle"
        }
      ]
    }
  }

ER注解需要配置custom，display

搜索，表单，display: false

 {
    "displayName": "dyMysql",
    "name": "dyMysql",
    "display": false,
    "custom": true
  }

表格，hidden : true

{
"displayName": "dyMysql",
"name": "dyMysql",
"custom": true,
"hidden": true
}