ORM common requirements

One .ORM Common requirements in the framework

ORM Common requirements in the use of framework

1. When the back management system makes a query , Multiple conditions are queried through an interface , Add a paragraph to whatever field you bring sql Filter , adopt mybatis How to achieve ？
   adopt mybatis Of dynamic sql It can be realized , similar getEmpsByCondition, Which field is carried , The query condition takes the value of this field
   It seems that only by writing mapper xml To make logical judgments
   spring data jpa It's through multiple Predicate structure Specification establish where Conditions of the , Logic is controlled by code
   2 Automatically set the creation time / Update time
   mybatis Is also used metaObjectHandler To do it ？
   Or do it through interceptors ？
   Or just create these two fields , Control through database statements ？
   spring data jpa There is entityListener, You can not operate the database , To achieve this function
   3. Automatic field encryption and decryption ？
   I don't know how to realize automation
   stay mybatis in , Do obfuscation after the query
   stay spring data jpa in , Use entityManager Do obfuscation after the query
2. Optimistic lock function
   mybatis-plus Provides optimistic-lock plugin
   spring data jpa Also provided @version Annotation to do
3. Logical deletion
   mybatis-plus Logical deletion is placed in DefaultSqlInjector Medium
   spring data jpa Write by yourself sql To achieve logical deletion

Two . The realization of requirements