Aspect Oriented Programming vs List<IAction> To execute methods based on conditions

Posted by David Robbins on Stack Overflow See other posts from Stack Overflow or by David Robbins
Published on 2010-03-31T14:34:29Z Indexed on 2010/03/31 17:03 UTC
Read the original article Hit count: 244

Filed under:

aop

|

c#

|

rule-engine

|

business-rules

|

state-machines

I'm new to AOP so bear with me. Consider the following scenario:

A state machine is used in a workflow engine, and after the state of the application is changed, a series of commands are executed. Depending on the state, different types of commands should be executed.

As I see it, one implementation is to create List<IAction> and have each individual action determine whether it should execute.

Would a Aspect Oriented process work as well? That is, could you create an aspect that notifies a class when a property changes, and execute the appropriate processes from that class? Would this help centralize the state specific rules?

© Stack Overflow or respective owner

Related posts about aop

Spring 3.0: Unable to locate Spring NamespaceHandler for XML schema namespace

as seen on Stack Overflow - Search for 'Stack Overflow'
My setup is fairly simple: I have a web front-end, back-end is spring-wired. I am using AOP to add a layer of security on my rpc services. It's all good, except for the fact that the web app aborts on launch: [java] SEVERE: Context initialization failed [java] org.springframework.beans… >>> More
Implementing Audit Trail- Spring AOP vs.Hibernate Interceptor vs DB Trigger

as seen on Stack Overflow - Search for 'Stack Overflow'
I found couple of discussion threads on this- but nothing which brought a comparison of all three mechanism under one thread. So here is my question... I need to audit DB changes- insert\updates\deletes to business objects. I can think of three ways to do this 1) DB Triggers 2) Hibernate interceptors 3)… >>> More
Spring AOP AfterThrowing vs. Around Advice

as seen on Stack Overflow - Search for 'Stack Overflow'
Hey there, when trying to implement an Aspect, that is responsible for catching and logging a certain type of error, I initially thought this would be possible using the AfterThrowing advice. However it seems that his advice doesn't catch the exception, but just provides an additional entry point… >>> More
Spring AOP Pointcut syntax for AND, OR and NOT

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm having trouble with a pointcut definition in Spring (version 2.5.6). I'm trying to intercept all method calls to a class, except for a given method (someMethod in the example below). <aop:config> <aop:advisor pointcut="execution(* x.y.z.ClassName.*(..)) AND NOT … >>> More
LOG4j Spring AOP

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi. I have a j2ee web application running on Spring framework. I want to implement logging using log4j and Spring's AOP. I was trying to find for references but I only get references which does not use log4j. >>> More

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More