If this is not a new session we should already have the group information stored in the session so we skip the remaining code.
如果这不是个新会话,那么我们应该已经把组信息存储在会话中了,这样我们就可以跳过余下的代码。
2
Such programmatic consumption may also let programmers skip the code generation route for applications where the generated artifacts only allow information encoded in the annotations to be read.