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问题描述
我使用了 hibernate ant 工具来生成带有注释的 hibernate pojo 类.使用 ANT SCRIPT 从现有表生成 POJO 类的策略是什么?
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?
我找到了答案并发布了.
I figured out the answer and I'm posting it.
推荐答案
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)
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