Source code, license, and version

Let's start by reviewing the source code and some common terminology. You can leverage the following section as a glossary. We have classified the terms according to their respective modules.

In the following two subsections, we will proceed to review the current version and the Apache ShardingSphere license.

shardingsphere-kernel

The shardingsphere-kernel module consists of authority, single-table, and transaction. When using ShardingSphere, you will become pretty accustomed to these terms and components. The following is a refresher of the definitions that we covered in the previous chapters of this book:

The authority module is used to allocate and manage user authority. It includes submodules of api and core:

• api provides a universal interface for authority configuration items and relevant authorities.
• The core module provides authority verification, authority algorithm, and authority rules among other implementation...