I\'ve seen a lot of codes use a service-dao pattern , I don\'t know the origin of this pattern . It force the front layer call service, then delegates some of the 开发者_如何学Cservice task to dao.
Can this ever make sense? Say I need to fetch an object from the DB which has a relation to another object (represented by a foreign key in the DB, and by a composition in my domain object).If in my
I have a C++ app that uses a Jet database through D开发者_运维问答AO.Large queries work well up through Vista but lockup under Win7 on a multicore machine.I have tried both jet 3.5 and 4.0.Both fail.I
What do you think? should your DAO return an IQueryable to 开发者_StackOverflowuse it in your controllers?No.Your controllers shouldn\'t be handling any complex logic at all.Keep them slim; the Model
I\'m attempting to declare DAO variables in VB, but when I go to assignment statements, it says they must be declared. But I\'ve just declared them in the line above! What\'s开发者_运维知识库 going on
Is it typical to name DAOs in the following way: UserDAO - interface UserDAOImpl - imp开发者_如何学运维lements UserDAO
Will there be a performance improvement if I remove the entity bean (finder methods) and introduce the DAO layer instead. I want to do this mainly for reading data from the DB. I have a p开发者_Python
I am developing a web application with PHP and MySQL. I have an entity named, User, that has many one-to-many relationships (with other objects) within it (list of Addresses, list of Emails, list of P
In my application, which uses Spring and Hibernate, I parse a CSV file and populate the db by calling handleRow() every time a record is read from the CSV file.
I am using Spring JdbcTemplate with the DAO pattern to access a database. Instead of creating the database tables manually, I am looking for a way to generate the tables in the DAO layer.
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