Background: spring + mybatis + oracle data source Requirement: support postgreSQL data source exchange with minimum code change Example: Current: controllerA -> ServiceA -> daoA -> A.xml (oracle) Now need: we can configure use oracele/postgreSQL database source If configure use postgreSQL: controllerA -> ServiceA -> daoA -> A.xml (postgreSQL) More: Same controllerA、ServiceA for same business logic Differenct DaoA、A.xml for oracle
Tag: mybatis
Retrieving a list of values across databases with mybatis
I have 2 Java POJO files The database has a FK mapping between FilterVariable.id and ValueVariable.valueListId. Inserts into the table work perfectly, i have a single transaction that inserts into both tables separately. While retrieving the data using select and join, I only receive the first row from the table in the database. Database Tables: The method in the interface
With MyBatis. How can I map two different records in one table, then construct a single query result when joining that table?
The definition of my query result entity has two fields, origin and destination, which are both Location type, and I’m trying to fetch the information in location table with JOINS.Here are the …
Is there anyway to convert json to java bean through mybatis mapper?
In case I have a mysql join query result set, it is in json format, like this: [ { “user_id”: 5294147, “user_name”: “rtm”, “user_created&…
How to not persist sqlSession.selectOne returned value?
My goal is to not persist the SqlSession.selectOne returned value. The problem is, if you do a sqlSession.selectOne (using an API endpoint) and then you edit the database directly for example using the MySQL workbench. After you edit the database and do another API endpoint request, the returned value will not change. This is how you recreate the problem: Do
Mapping java.lang.String type to Postgres JSON Type
My question is related to the following question Mapping postgreSQL JSON column to Hibernate value type and although the answer works when I test passing a string to psql in postgres it doesn’t work when passing a string from my Java code. I am using MyBatis to map sql to the postgres database via Spring injection. Here is my Java
MyBatis Batch Insert/Update For Oracle
I’ve recently started learning to use myBatis.I am now facing such a scenario, I need to constantly fetch a new list of Objects through WebService, then for this list, I need to insert/update each …