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Topic: AOP


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  AOP@Work: AOP tools comparison, Part 1   (Site not responding. Last check: 2007-11-03)
AOP is a new technology, and, as such, not all of the current crop of tools are mature enough for commercial development.
While the AOP tools that do not appear among the top four in the table may be technologically sophisticated, the lack of a strong user base suggests that they have not yet withstood the test of adoption.
AOP technology is moving forward at a fast pace, and upcoming release plans for the leading AOP tools are highlighted in Part 2 of this article.
www-106.ibm.com /developerworks/java/library/j-aopwork1   (5758 words)

  
 JRockit JVM Support For AOP, Part 1
As the popularity of AOP is growing and the research community is moving things forward, vocabulary, concepts, and implementations have gained in consistency, allowing for better tool support and developer experience, such as with the AspectJ Eclipse plug-in AspectJ Development Tools (AJDT).
AOP has also gone through several implementation techniques, ranging from source-code manipulation to bytecode instrumentation—a technique widely adopted in Java, especially with the advent of the Java 5 JVMTI.
AOP solves this by adding an extra dimension to the design space, and introduces constructs that allow us to define the cross-cutting concerns—to lift them out into a new dimension and package them in a modular way.
dev2dev.bea.com /pub/a/2005/08/jvm_aop_1.html   (762 words)

  
 Aspect- vs. Object-Oriented Programming: Which Technique, When?
The sequence diagram in Figure 3 illustrates the design of the AOP approach and the interaction between the classes at a higher level.
Using AOP to populate this map is like a backdoor approach, where the control is delegated to a repository class for reading BusinessUnit records from storage.
Another downside of AOP is debugging can be difficult, because—unlike OOP—the program flow is not straightforward and the interactions are determined only at compile time or at runtime.
www.devx.com /Java/Article/28422/1954?pf=true   (2103 words)

  
 AOP: Aspect-Oriented Programming Enables Better Code Encapsulation and Reuse -- MSDN Magazine, March 2002
At its core, AOP is a way of laying components, one on top of the other, to achieve levels of reuse not available in other kinds of component-based development.
Our AOP moniker takes the metadata describing the aspects associated with the class in question, creates an instance of the class, builds the stack of aspects, hooks them all up via an AOP interceptor, and then hands the interceptor back to the client.
In COM+ and in our custom AOP framework, we provided that context by stacking aspects between the client and the object to establish the properties of the context for the component before the method was executed.
msdn.microsoft.com /msdnmag/issues/02/03/AOP/default.aspx   (4061 words)

  
 Aspect-oriented programming - Wikipedia, the free encyclopedia
AOP languages can be compared based on the join points they expose, the language they use to specify the join points, the operations permitted at the join points, and the structural enhancements that can be expressed.
There are two different ways AOP programs can affect other programs, depending on the underlying languages and environments: (1) a combined program is produced, valid in the original language and indistinguishable from an ordinary program to the ultimate interpreter; and (2) the ultimate interpreter or environment is updated to understand and implement AOP features.
The same AOP language can be implemented through a variety of weaving techniques, so the semantics of a language should never be understood in terms of the weaving implementation.
en.wikipedia.org /wiki/Aspect-oriented_programming   (2603 words)

  
 Aspect Oriented Programming
A: One answer might be that AoP allows the application code to be "oblivious" to the aspects woven in, whereas what you propose suggests the need for the programmer to actively (remember to) invoke the aspect server at all the appropriate times/places from within the application code.
What differentiates "native support" for AOP in Microsoft's.NET (e.g., see ), from AspectC++ and AspectJ, is that the former is "fl-box" AOP, whereas the latter two are "clear-box" AOP.
AOP is merely another patch to cover one of OOP's numerous shortcomings.
c2.com /cgi/wiki?AspectOrientedProgramming   (2785 words)

  
 The Aspects Blog: Graham Hamilton on AOP
Graham is positioning for container-based "AOP", which he appears to interpret as use of annotations that your container understands, in order to provide interception.
I think the AOP solution is far preferable to the code generation, boilerplate templates, and heavyweight, and inflexible frameworks that people traditionally reach for to cope with these kinds of problems.
AOP terminologies and syntax many feel strange initially (as is the case with any interesting technology).
www.aspectprogrammer.org /blogs/adrian/2006/03/graham_hamilton.html   (1854 words)

  
 Apnea of Prematurity
AOP may happen once a day or many times a day.
Postconceptional age is defined as the gestational age (how many weeks of pregnancy at the time of birth) plus the postnatal age (weeks of age since birth).
Aside from AOP, there may be other complications with your premature baby that may limit the time and interaction that you can have with your child.
kidshealth.org /parent/medical/lungs/aop.html   (1496 words)

  
 AOP considered harmful? ...
AOP is the fashionable modern-day OOP goto, and for the very same reasons Edsger Dijkstra warned back in '68; it is to be considered harmful.
AOP could be considered worse than spaghetti however, in that it inserts its gotos directly into the bytecode, post compilation.
I never wrote any AOP code that had more than one level of advice, but I can imagine libraries that leverage other libraries, all of which are using one or another aspect framework, where this does indeed become a problem.
www.javalobby.org /java/forums/t18398.html   (1637 words)

  
 Aspect-Oriented Programming in Java
AOP is a concept and as such it is not bound to a certain programming language or programming paradigm.
AOP introduces the very same features: They are called before advises and after advises.
AOP provides many interesting new concepts, many of them are borrowed from metalevel programming.
www.voelter.de /data/articles/aop/aop.html   (2587 words)

  
 Academy of the Pacific - Important News
In addition to her education philosophy and vision, Pei cited Sperry's experience with “differentiated education,” AOP's main teaching style that lets the students learn at their own pace, with a customized education fitting the aptitude and developmental stage of each child.
She has the personality to lead the AOP Ohana, and the passion for helping our students to develop into responsible and contributing members of society.” Douthit added that Sperry's knowledge of AOP is also personal—three of her brothers-in-law are AOP alumni.
Accredited by the Western Association of Schools and Colleges since 1978, AOP is a village for learning that provides a nurturing, personalized educational experience tailored to meet each student's needs.
www.aop.net /press.html   (484 words)

  
 java.net: Implement Your Own Proxy-Based AOP Framework
AOP provides a complement to object-oriented programming (OOP), which is still the most common and powerful methodology to address core business concerns.
Unlike the class-weaving-based ones, proxy-based AOP frameworks are simpler and often focus on method interception.
AOP can be a hard sell, but Dynaop is a lot easier and safer than AspectJ, especially considering you just drop a jar in the classpath.
today.java.net /pub/a/today/2005/11/01/implement-proxy-based-aop.html   (2422 words)

  
 ONJava.com -- Aspect-Oriented Programming and JBoss
AOP and OOP are not competing technologies, but actually complement each other quite nicely.
AOP allows you to define cross-cutting concerns that can be applied across separate, and very different, object models.
Pointcuts tell the AOP framework which interceptors to bind to which classes, what metadata to apply to which classes, or what classes to which an introduction will be introduced.
www.onjava.com /pub/a/onjava/2003/05/28/aop_jboss.html   (1227 words)

  
 JINSPIRED JXInsight Insights - JBoss AOP Tracing   (Site not responding. Last check: 2007-11-03)
JBoss AOP is not only a framework, but also a prepackaged set of aspects that are applied via annotations, point cut expressions, or dynamically at runtime.
AOP allows multiple concerns to be separately expressed but unified at compile or runtime within programs.
An AOP framework comes with a rich set of point cut expressions that can be used to define various join points in a program where aspects (advices) should be applied.
www.jinspired.com /products/jxinsight/jbossaop.html   (768 words)

  
 Aspect Oriented Programming
AOP assumes that crosscutting concerns may exist in programs and can't be re-factored out of the design in all situations.
AOP is a new technology for separating crosscutting concerns into single units called aspects.
AOP is a concept, so it is not bound to a specific programming language.
www.developer.com /design/article.php/3308941   (1462 words)

  
 UK Association of Online Publishers (AOP) | Research | Free content drives ad revenue for AOP members
Results from the latest AOP membership survey, the AOP Census 2006, show that online advertising revenue continues to be the top source of income for most AOP member organisations.
For those AOP members that do charge, however, the findings show this can provide a significant chunk of their overall income.
The average for AOP members is now 13 per cent (up from 11 per cent last year).
www.ukaop.org.uk /cgi-bin/go.pl/research/article.html?uid=920   (480 words)

  
 Eric Gunnerson's C# Compendium : C# and Aspect Oriented Programming
One of my concerns is that AOP adds a whole new level of complexity to reading code, in that the code that is executed in a method isn't all in the method.
AOP is certainly a very useful concept that should be supported by further MS products.
This isn’t true AOP as the code itself has to be decorated to implement the functionality (Aspects should really be completely orthogonal to the rest of the code), but it would provide a partial answer.
blogs.msdn.com /ericgu/archive/2004/06/29/169394.aspx   (2021 words)

  
 oreilly.com -- Online Catalog: AspectJ Cookbook
AOP allows the global properties of a program to determine how it's compiled into an executable program.
AOP has been compared to the manufacturing of cloth, in which threads are automatically interwoven.
For the people who would try AOP the first thing they may concern is the scope of the Aspect J and how weaving the Aspect J into their current application like JSP, Servlet, Java application and also the compatibility with the IDE like Eclipse.
www.oreilly.com /catalog/aspectjckbk   (708 words)

  
 InfoQ: Painless AOP with Groovy
AOP allows us to modularise code that may otherwise remain entangled across a number of methods and classes.
AOP allows us to write all this functionality once and have it applied to our methods at the appropriate point (before, after, around or when an exception is thrown), where once we may have violated the DRY principle and written it multiple times.
AOP allows us to execute an arbitrary function when a specified method is called.
www.infoq.com /articles/aop-with-groovy   (2936 words)

  
 About AOP : Bone Marrow Transplantation
A digital object identifier (DOI) is an international, public, "persistent identifier of intellectual property entities" in the form of a combination of numbers and letters.
AOP papers are the same as those in the print issues: while abstracts are freely available on any NPG journal's web site, access to the full-text article requires a paid subscription or a site license.
For convenience, the PDF version of every AOP article is given a temporary pagination, beginning with page 1.
www.nature.com /bmt/about_aop.html   (960 words)

  
 Enterprise Java Community: TSS Featured Entry
In short, I see a lot of potential in AOP but I still perceive it as extremely complicated and representing a steeper learning curve than most Java developers are willing to climb.
If anything, we showed the audience that AOP was taken very seriously and considered in very pragmatic terms by a lot of people these days.
Whether you think you will be using AOP in your work or not, I strongly recommend you take some time to study its major concepts.
www.theserverside.com /blogs/showblog.tss?id=AOPPanel   (606 words)

  
 Otaku, Cedric's weblog: AOP still not there
I was advocating the use of AOP and its adoption in tech divisions without involving externals (management, financial, etc).
AOP is not worth using if it does what my IDE does already.
Indeed, i'm right know investigating the prospect for AOP for my company and i didn't really see (through this log) what was the futur (or not) of AOP.
beust.com /weblog/archives/000180.html   (2186 words)

  
 ONJava.com -- Introduction to Aspect-Oriented Programming
AOP allows us to dynamically modify our static model to include the code required to fulfill the secondary requirements without having to modify the original static model (in fact, we don't even need to have the original code).
Better still, we can often keep this additional code in a single location rather than having to scatter it across the existing model, as we would have to if we were using OO on its own.
When you are familiar with the concepts presented here, I would recommend that you continue to investigate AOP and see how the other facets may be of use to you in your development environment.
www.onjava.com /pub/a/onjava/2004/01/14/aop.html   (1359 words)

  
 Chapter 6. Aspect Oriented Programming with Spring   (Site not responding. Last check: 2007-11-03)
Spring 2.0 seamlessly integrates Spring AOP and IoC with AspectJ, to enable all uses of AOP to be catered for within a consistent Spring-based application architecture.
Spring AOP is a proxy based system and differentiates between the proxy object itself (bound to 'this') and the target object behind the proxy (bound to 'target').
When using AOP as a tool to configure enterprise services (a good test is whether you consider the pointcut expression to be a part of your configuration you might want to change independently) then XML can be a good choice.
www.springframework.org /docs/reference/aop.html   (11474 words)

  
 AOP Alliance   (Site not responding. Last check: 2007-11-03)
The AOP Alliance project is a joint open-source project between several software engineering people who are interested in AOP and Java.
AOP Alliance intends to facilitate and standardize the use of AOP to enhance existing middleware environments (such as J2EE), or development environements (e.g.
The AOP Alliance also aims to ensure interoperability between Java/J2EE AOP implementations to build a larger AOP community.
aopalliance.sourceforge.net   (118 words)

  
 simonwacker.com - Weblog | About | Projects | Portfolio
To show how you can use the AOP Framework for Flash, I announced in my previous post: AOP: AOP Framework for Flash Version 0.1, I have built a little example that logs the Account.debit() and Account.credit() operations using an around advice.
AOP targets mostly on the implementation of crosscutting concerns like logging and tries to seperate the whole crosscutting logic from your actual code.
The problem AOP faces is that it is something new and has first to be accepted in the community.
www.simonwacker.com /blog/archives/cat_aop.php   (3462 words)

  
 GenVoca and AOP
Aspect-Oriented Programming (AOP) and GenVoca, though seemingly dissimilar in approach and technology, are very similar in their basic concepts and the effort required for their implementation.
AOP components can be methods, classes, etc. AOP then applies one or more aspects to these components to perform large-scale refinements.
Both AOP and GenVoca allow code to be easily composed and customized by mixing and matching high level design features.
www.cs.utexas.edu /users/richcar/aopwisr.html   (1618 words)

  
 Chapter 6. Spring AOP: Aspect Oriented Programming with Spring
Spring AOP does not need to control the class loader hierarchy, and is thus suitable for use in a J2EE web container or application server.
AOP advice is specified using normal bean definition syntax (although this allows powerful "autoproxying" capabilities); advice and pointcuts are themselves managed by Spring IoC: a crucial difference from other AOP implementations.
An AOP proxy bean definition specifying the target object (the personTarget bean) and the interfaces to proxy, along with the advices to apply.
static.springframework.org /spring/docs/1.2.x/reference/aop.html   (8640 words)

  
 Home   (Site not responding. Last check: 2007-11-03)
Copies can be ordered free of charge from the AOP by emailing Patricia O'Sullivan.
The AOP is offering help to those members who have not yet registered on the CETOptics web site, or who have registered but not yet confirmed their points.
The AOP's Annual General Meeting will be held at the Hilton Hotel, Belfast at 3.00pm.
www.aop.org.uk   (529 words)

  
 All content on InfoQ about AOP
Aspect Oriented Programming (AOP) can be used to solve a number of today's application requirements but can also be intimidating for developers when getting started.
This article reviews Spring AOP support in 2.0, and walks you through an adoption roadmap for AOP in enterprise applications, with plenty of examples of features that can be implemented simply using AOP, but would be very hard to do any other way.
It also discusses ways to adopt AOP in pragmatic, risk-managed ways allowing developers to try AOP in their own system and gain understanding at the experiential level without exposing them to undue risk.
www.infoq.com /aop   (498 words)

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