Join the DZone community and get the full member experience.
Join For FreeDownload Microservices for Java Developers: A hands-on introduction to frameworks and containers. Brought to you in partnership with Red Hat.
In my recent blog on 10 minute concepts, I mentioned some of the terms relating to AspectJ and AOP, which I never defined. This blog puts that right and explains some of these terms below...
| AspectJ Term | Description |
| Aspect | A feature of a program that is separate from, and not related to any specific part of a program, but is woven throughout the fabric of the program so as to be used by all or many parts of the program.... and this sounds really vague. You can think of a program as a bunch of events, for example: methods being called, objects being constructed etc. An aspect oriented approach to programming, such as ApsectJ, really means creating some mechanism where by you can call your method before, after or around some other event, so as run some of your code, without the need to reference this code from the event. |
| Join Point | A join point is the name given to one of the programmatic events as described above, eg calling a method or creating an object. In AspectJ, a joint point is really the specification of where/when in your program, your aspect code is running. For example, if your aspect code runs before a given method call, then the join point describes the signature and arguments of that method. |
| Pointcut | A set of related joint points. When program execution reaches one of the join points in the pointcut, then your aspect code will run. |
| Advice | This is the code that runs when program execution reaches a joint point in your pointcut. |
From http://www.captaindebug.com/2011/09/aop-and-aspectj-terminology.html
Download Building Reactive Microservices in Java: Asynchronous and Event-Based Application Design. Brought to you in partnership with Red Hat.
Like This Article? Read More From DZone
Topics:
Opinions expressed by DZone contributors are their own.
{{ parent.title || parent.header.title}}
{{ parent.tldr }}
{{ parent.linkDescription }}
{{ parent.urlSource.name }}