Hibernate的蚂蚁工具 [英] Hibernate Ant Tools

问题描述

我用休眠蚂蚁工具来生成hibernate的POJO类与注释。
什么是从现有的表使用Ant脚本？

POJO类生成策略

我想出了答案，我张贴。

解决方案

 如果表中列有NOT NULL约束，
然后与在生成的类中列的属性将是基本类型。如果表列没有NOT NULL约束，
然后与在生成的类中列的属性将是java.lang.X类型。
（X ==任何整数，字节，浮点型，双取决于数据库表列型）如果表列是有主键约束，
然后与在生成的类中列的属性将是基本类型。如果表列是有主键约束，这是AUTO INCREAMENT或外键，
然后与在生成的类中列的属性将是java.lang.X类型。
（X ==任何整数，字节，浮点型，双取决于数据库表列型）
 

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.

解决方案

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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