vo design pattern

Original address: http://www.blogjava.net/johnnylzb/archive/2010/05/27/321968.htmlThe previous article as a primer, explained the advantages of domain-driven design, from this article, the author will be combined with their own practical experience,

Vo is a mapping to a table in a database, and a table corresponds to a VODAO is to use VO to access the real table, the operation of the database is done in DAOBo is the business layer that does the logical processingVO, PO, BO, QO, DAO, POJOThe O/R

The Java (Po,vo,to,bo,dao,POJO) explanation for the O/R Mapping is an abbreviation for Object Relational Mapping ( the Objects relational map). The popular point is that the object is bound to the relational database, and the object is used to

Java's (Po,vo,to,bo,dao,pojo) explanationThe O/R Mapping is an abbreviation for the Object Relational Mapping. The popular point is that the object is bound to the relational database, and the object is used to represent the relational data. In the

A few words to understand POJO, JavaBean, EJB, DAO, DTO, VO, PO, BO, do 1. POJO POJO (Plain old Java Object) is called by Martin Fowler, Rebecca Parsons and Josh Mackenzie in a speech in 2000. According to Martin Fowler, "Plain old Java object"

the O/R Mapping is an abbreviation for the Object Relational Mapping. The popular point is that the object is bound to the relational database, and the object is used to represent the relational data. In the world of O/R mapping, there are two basic

POJO (Plain ordinary Java object) simple, irregular Java objects Simple Java objects (Plain old Java Objects) are actually ordinary JavaBeans, using pojo names to avoid confusion with EJBS, and the short name is more straightforward. Some of these

One, in the Java EE, often mention several objects (object), understanding their meaning can help us to better understand the object-oriented design thinking. ORM is an abbreviation for Object Relational Mapping "Objects relational

after referring to a large amount of information about various O, record the understanding and application that I have summarized as correct: 1. PO (Persistant object) Persistent object (interpreted as the DAO layer: The Received and returned Java

One, Po:persistant object persistent objects, can be seen as a Java object mapped to a table in the database. The simplest PO is a record in a table in the corresponding database, and multiple records can be used with a collection of PO. The PO