Business layer access to the data layer

Posted by rerun on Programmers See other posts from Programmers or by rerun
Published on 2011-03-01T23:29:32Z Indexed on 2011/03/01 23:31 UTC
Read the original article Hit count: 294

Filed under:

code-layout

|

n-tier

I have a Business layer (BL) and a Data layer (DL). I have an object o with a child objects collection of Type C. I would like to provide a semantics like the following o.Children.Add("info"). In the BL I would like to have a static CLASS that all of business layer classes uses to get a reference to the current datalayer instance. Is there any issue with that or must I use the factory pattern to limit creation to A class in the BL that knows the DL instance.

© Programmers or respective owner

Related posts about code-layout

Android: Use XML Layout for List Cell rather than Java Code Layout (Widgets)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm in the process of making a music app and I'm currently working on the library functionality. I'm having some problems, however, in working with a list view (In particular, the cells). I'm trying to move from a simple textview layout in each cell that's created within java to one that uses… >>> More
Business layer access to the data layer

as seen on Programmers - Search for 'Programmers'
I have a Business layer (BL) and a Data layer (DL). I have an object o with a child objects collection of Type C. I would like to provide a semantics like the following o.Children.Add("info"). In the BL I would like to have a static CLASS that all of business layer classes uses to get a reference… >>> More
What human learning techniques can be applied to improve code layout?

as seen on Stack Overflow - Search for 'Stack Overflow'
Is it possible to use the results of studies made into human learning in order to identify how code might be laid out to improve comprehension? Code layout wars almost always end up defending consistency and the prevailing style, but could there be ways of laying out code that are provably better… >>> More
.Net Analysis tools [closed]

as seen on Stack Overflow - Search for 'Stack Overflow'
Possible Duplicate: What static analysis tools are available for C#? At work we tend to use two tools for analysing our projects, FxCop to analyse our managed code and StyleCop to have consistent code layout. I found these tools pretty much by accident and it has led me to wonder what other… >>> More
php multiple select drop down

as seen on Stack Overflow - Search for 'Stack Overflow'
here is my mysql and php code layout: -i have 3 tables -tableA stores unique "person" information -tableB stores unique "places" information -tableC stores not unique information about a person and places they have "beenTo". here is how i layed out my form: -one big form to insert into "person"… >>> More

Related posts about n-tier

The Interaction between Three-Tier Client/Server Model and Three-Tier Application Architecture Model

as seen on DotNetBlocks - Search for 'DotNetBlocks'
The three-tier client/server model is a network architectural approach currently used in modern networking. This approach divides a network in to three distinct components. Three-Tier Client/Server Model Components Client Component Server Component Database Component The Client Component… >>> More
when to introduce an application services tier in an n-tier application

as seen on Programmers - Search for 'Programmers'
I am developing a web based application whose primary objective is to fetch data from the database, display it on the UI, take in user inputs and write them back to the database. The application is not going to be doing any industrial strength algorithm crunching, but will be receiving a very high… >>> More
What is a best practice tier structure of a Java EE 6/7 application?

as seen on Programmers - Search for 'Programmers'
I was attempting to find a best practice for modeling the tiers in a Java EE application yesterday and couldn't come up with anything current. In the past, say java 1.4, it was four tiers: Presentation Tier Web Tier Business Logic Tier DAL (Data Access Layer ) which I always considered a tier and… >>> More
How to handle server failure in an n-tier architecture?

as seen on Server Fault - Search for 'Server Fault'
Imagine I have an n-tier architecture in an auto-scaled cloud environment with say: a load balancer in a failover pair reverse proxy tier web app tier db tier Each tier needs to connect to the instances in the tier below. What are the standard ways of connecting tiers to make them resilient to… >>> More
Top Tier, A-Game Talent - How to Land em'

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Recently the question came up from a close friend of mine, "will my PhD help me attain a higher income in the north west?" I had to tell him, that it might get him a little more, but it won't get him in the top income brackets for the occupation. Another time, a few days later, someone else asked… >>> More