Ted.
+1 to this approach. I prefer leightweight container such as hivemind to manage the entrypoints to the business logic. Hivemind is easy to learn and you have the benefit, that the lifecycle of the business components may be steered too (such as pooled components, singletons etc.). Other containers like spring or picocontainer are also well.
-Manfred
Ted Husted wrote:
As to business objects, the usual advice is to use Plain Old Java Objects (POJOs).
The current MailReader example application is an excellent example of creating a set of interfaces to represent business logic, then instantiating a set of classes to implement the business logic.
The MailReader uses a Struts PlugIn to create the business logic beans in application scope. Another good approach is to use Spring to create your business objects. Here, you might use a PlugIn to create the Spring instance in application scope, and then call the Spring instance to create everything else.
Of course, my favorite way to manage business objects now is as a Chain of Responsbility. But, to get started, you probably want to use plain old business beans, as the MailReader does.
All this is to say, option 2. The Actions call the business beans, and the beans do all the heavy lifiting. (Actions shouldn't know *how* to do things, just who to ask to get things done.)
The iBATIS DAO layer is cool, but if you don't need a switchable DAO, you can do the same thing using your own interfaces.
Of course, my favorite way to do business logic now is using the Chain of Responsiblity. But, that's a bit bleeding edge right now :)
-Ted.
On Fri, 11 Mar 2005 14:57:51 +0530, karthikeyan balasubramanian
<[EMAIL PROTECTED]> wrote:
Hi all,
Struts DB Access Best Practices thread gave me great insight on how I should proceed with db operations.
I have one more question. Where do you keep your business logic code. Right now I am thinking to use
1. Struts(JSP, Actions) 2. Simple class(Managers) to keep all our business logic code 3. IBATIS for database abstraction.
Actions can call Managers to get the job done and Manager can use iBATIS to access DB.
Is this a good approach or is there a better approach than this?
Looking forward for your response.
Have a great day.
Karthikeyan B
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