What is iBATIS framework?
iBATIS is a persistence framework which automates the mapping between SQL databases and objects in Java, . NET, and Ruby on Rails. In Java, the objects are POJOs (Plain Old Java Objects). The mappings are decoupled from the application logic by packaging the SQL statements in XML configuration files.
Is iBATIS open source?
There are many open source ORM tools, including Hibernate, iBATIS SQL Maps, and Java Ultra-Lite Persistence. Most of these tools are persistence frameworks that provide a layer of abstraction between the Java application and the database.
What is TypeHandler in MyBatis?
typeHandlers. Whenever MyBatis sets a parameter on a PreparedStatement or retrieves a value from a ResultSet, a TypeHandler is used to retrieve the value in a means appropriate to the Java type.
What is resultMap in MyBatis?
In MyBatis, when a query is select ed for mapping, the return type can be either resultType or resultMap, which is a direct representation of the return type, while resultMap is a reference to the external ResultMap, but resultType and resultMap cannot exist simultaneously.
What is the difference between iBATIS and Hibernate?
Both Hibernate and iBATIS are open source Object Relational Mapping (ORM) tools available in the industry….Difference between iBATIS and Hibernate.
| iBATIS | Hibernate |
|---|---|
| iBATIS uses SQL which could be database dependent. | Hibernate uses HQL which is relatively independent of databases. It is easier to change db in Hibernate. |
What is the difference between iBATIS and MyBatis?
MyBatis is a fork from iBATIS, and according to Wikipedia most of iBATIS’ developers moved over to MyBatis too. The iBATIS project is currently marked as Inactive, therefore you should go with MyBatis for new projects and only use iBATIS if you’re maintaining an existing project which already uses iBATIS.
What is useGeneratedKeys in MyBatis?
useGeneratedKeys. (insert and update only) This tells MyBatis to use the JDBC getGeneratedKeys method to retrieve keys generated internally by the database (e.g. auto increment fields in RDBMS like MySQL or SQL Server). Default: false . keyProperty.