dao
What is the purpose of distancing DAO classes from ones actually being instantiated by the application
What is the benefit of distancing DAO classes from the ones actually being instantiated in the application code, i.e. why not just instantiate the dao class straight up in a scenario like this:[详细]
2023-02-25 05:46 分类：问答Comments & experience with hibernate-generic-dao and the likes? [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. 开发者_如何学Go[详细]
2023-02-25 00:21 分类：问答Question about Cake Pattern
Let there a few separate DAO classes OrderDAO, ProductDAO, and CustomerDAO that store/retrieve data in the database and share a single 开发者_高级运维instance DataSource (the database connection facto[详细]
2023-02-24 22:58 分类：问答AOP can not catch the DAO exception in spring due to proxy side effect by spring injection
The purpose is to handle all persistence exception and wrapped to simple general exception, so service layer can easily handle them.[详细]
2023-02-24 12:37 分类：问答Should Transfer Object always reflect the entire DB row entry?
I\'ve got a question on the transfer object in DAO pattern. Let\'s say you have a USER table, and there are 20 fields in this table. 开发者_StackOverflow中文版In the business logic, I notice that I ma[详细]
2023-02-22 18:43 分类：问答Java's DataSource Equivalent in .net
Under .net (specifically C# really), is there an equivalent to Java\'s DataSource class?I\'m used to creating a single DataSource (pooled or non-pooled) and passing i开发者_StackOverflowt around to ob[详细]
2023-02-20 23:23 分类：问答Is DAO pattern obsolete in Scala?
Let\'s consider a simple example of DAO pattern. Let Person is a value object and PersonDAO 开发者_JAVA百科is the correspondent trait, which provides methods to store/retrieve Person to/from the datab[详细]
2023-02-19 18:47 分类：问答Should em.flush be used in EJB 3.0 DAOs to abstract persistence layer?
Say I have following generic dao deployed as a local SLSB: public interface CrudService { public <T> T create(T t);[详细]
2023-02-18 15:47 分类：问答Why we are getting currentsession twice in the application?
Recently I did some work around to check, where to give the session related code in our application, ie .Getting current session (sessionFactory.getCurrentSession());[详细]
2023-02-18 04:48 分类：问答Spring, Hibernate: DAO-Class: Using always the same object?
Im working with Spring 3 and Hibernate 3.6 on developing a webapplication. I have a DAO-Class and I created in a xml-file ONE bean (named \"dao1\") for it. Every class which needs to access the datab[详细]
2023-02-17 23:37 分类：问答
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