ehcache搜索API-如果连接两个表

Question

i am trying to new cache configuration with new DB tables. following are sample table structure and sample Data.

TABLE_DEPT:

Dept Id      Detp Name     Dept Dtls
111          SALES         A1
112          MARKET        A2

TABLE_EMP:

Emp Id     Emp Name    DeptId    Working Started   Working ended
1          ABEmp       111       01-01-2017        02-02-2017
2          CDEmp       112       01-01-2017        03-12-2017
3          EFEmp       113       01-01-2017        03-12-2017
1          ABEmp       115       03-02-2017        03-12-2017

if i want to add load the data in cache by using Dept Id, i will have unique dept Id with list of emp Id - details.

if i want to search by dept id in ehcache configuration, i can simply give search attribute is "dept id". but, if i want to search by emp id, i should get list of dept under employee worked.

what should be my ehcache design?

my Java bean/POJO looks like below.

Class DeptDtls{

    int deptId;
    String deptName;
    List<Integer> empIdList;

    //Setter & getters
}

cache - i want to put key as deptId & value is whole DeptDtls.

in this case, how can i allow search operation based on empId?

Answer 1

Ehcache只能提供内存数据存储，但是在您的情况下，顶级缓存也需要搜索。我遇到了相同的情况，并使用elasticsearch缓存数据并搜索存储的数据.elastic search内置了对搜索的支持，我们可以为存储的索引可以将data .elasticsearch配置为用于缓存。