问题
I have used hibernate ant tool to generate hibernate pojo classes with annotations. What is the POJO class generation strategy from existing tables using ANT SCRIPT?
I figured out the answer and I'm posting it.
回答1:
If table column is having not null constraint,
then a property related to that column in generated class will be of primitive type.
If table column is not having not null constraint,
then a property related to that column in generated class will be of java.lang.X type.
(X == any of Integer,Byte,Float,Double depends on table column type in database)
If table column is having primary key constraint,
then a property related to that column in generated class will be of primitive type.
If table column is having primary key constraint and it is AUTO INCREAMENT OR foreign key,
then a property related to that column in generated class will be of java.lang.X type.
(X == any of Integer,Byte,Float,Double depends on table column type in database)
来源：https://stackoverflow.com/questions/8563437/hibernate-ant-tools