hexadecimal key generator

The Hibernate primary key generator is used to generate the primary key for data table records. There are several common primary key generation methods.Key GeneratorPrimary key generator:First, we will introduce several common primary key generators:

Http://www.cnblogs.com/talo/articles/1663978.html This article describes the significance of the generator attribute of hibernate. There are 7 types of generator attributes. This article briefly describes the meaning and usage of these 7 classes.

This article mainly describes the Python decorator, iterator & amp; Generator, re regular expression, and string formatting. if you are interested, refer to this chapter: Decorator Iterator & generator Re regular expression String

Generally, Hibernate recommends defining an identifier attribute for a persistence class to uniquely identify a persistence instance.The identity attribute must be mapped to the primary key of the underlying data table. Identifier PropertyPassThe

1. Automatic growth of identityApplicable to MySQL, DB2, and ms SQL Server. It uses the primary key generated by the database to generate unique identifiers for long, short, and int types.Use auto-increment fields of SQL Server and MySQL. This

Hibernate generator element generates the primary key for new record. There are provided options provided by the generator method to be used in different situations.   The element   Here is the example Here are the list of some commonly used

Hibernate generator primary key generation policy, hibernategenerator "Assigned"A primary key is generated by an external program and specified before save."Hilo"The primary key generation mechanism implemented by the hi/lo algorithm requires

Generate a key generator from a hibernate primary key The Hibernate primary key generator is used to generate the primary key for data table records. There are several common primary key generation methods. Key Generator Primary key generator: First,

The selection of database primary keys has always been a headache. there have been a lot of discussions in the garden. including this small discussion on Database primary key selection policy (original) and the primary key design of this database.

http://blog.csdn.net/yerenyuan_pku/article/details/65462930Hibernate Persistence ClassWhat is a persistent class? The English name of the persistence class in Hibernate is Persistent Object (PO), PO=POJO+HBM mapping configuration file.For the PO in