1、简单
@Test
public void add() throws Exception {
final Employee em = new Employee("遥远2",50000.0);
Key<Employee> key = datastore.save(em);
Console.log("主键id={},{}",key.getId(),em.getId());
}
存储:
{
"_id" : ObjectId("5bced166dd00712bd429363e"),
"className" : "com.ebc.entity.Employee",
"name" : "遥远2",
"wage" : 50000
}
2、添加子集合
@Test
public void add2() throws Exception {
Employee em = new Employee("zuoys",10000.0);
final Employee e1 = new Employee("小弟1",2000.0);
datastore.save(e1);
final Employee e2 = new Employee("小弟2",3000.0);
datastore.save(e2);
//集合中的元素必须先保存
List<Employee> emList = CollUtil.newArrayList();
emList.add(e1);
emList.add(e2);
em.setDirectReports(emList);
datastore.save(em);
Console.log("主键id={}",em.getId());
}
存储:
/* 1 */
{
"_id" : ObjectId("5bcef23890c1d9280c07128e"),
"className" : "com.ebc.entity.Employee",
"name" : "小弟1",
"wage" : 2000
}
/* 2 */
{
"_id" : ObjectId("5bcef23890c1d9280c07128f"),
"className" : "com.ebc.entity.Employee",
"name" : "小弟2",
"wage" : 3000
}
/* 3 */
{
"_id" : ObjectId("5bcef23890c1d9280c071290"),
"className" : "com.ebc.entity.Employee",
"name" : "zuoys",
"directReports" : [
{
"$ref" : "employees",
"$id" : ObjectId("5bcef23890c1d9280c07128e")
},
{
"$ref" : "employees",
"$id" : ObjectId("5bcef23890c1d9280c07128f")
}
],
"wage" : 10000
}
3、添加父
@Test
public void add3() throws Exception {
Employee em = datastore.get(Employee.class, new ObjectId("5bcef23890c1d9280c071290"));
final Employee e3 = new Employee("小弟3有父",22.0);
e3.setManager(em);
Key<Employee> key = datastore.save(e3);
Console.log("主键id={}",key.getId());
}
存储:
/* 4 */
{
"_id" : ObjectId("5bcef45d90c1d91d509941cd"),
"className" : "com.ebc.entity.Employee",
"name" : "小弟3有父",
"manager" : {
"$ref" : "employees",
"$id" : ObjectId("5bcef23890c1d9280c071290")
},
"wage" : 22
}