Synonyms for aspectj or Related words with aspectj

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Examples of "aspectj"
Compared to the AspectJ framework, Spring AOP is less powerful, but also less complicated. Spring 1.2 includes support to configure AspectJ aspects in the container. Spring 2.0 added more integration with AspectJ; for example, the pointcut language is reused and can be mixed with Spring AOP-based aspects. Further, Spring 2.0 added a Spring Aspects library that uses AspectJ to offer common Spring features such as declarative transaction management and dependency injection via AspectJ compile-time or load-time weaving. SpringSource also uses AspectJ AOP in other Spring projects such as Spring Roo and Spring Insight, with Spring Security also offering an AspectJ-based aspect library.
AspectJ also supports limited forms of pointcut-based static checking and aspect reuse (by inheritance). See the AspectJ Programming Guide for a more detailed description of the language.
AspectWerkz is a dynamic, lightweight and high-performance AOP/AOSD framework for Java. It has been merged with the AspectJ project, which supports AspectWerkz functionality since AspectJ 5.
All valid Java programs are also valid AspectJ programs, but AspectJ lets programmers define special constructs called "aspects". Aspects can contain several entities unavailable to standard classes. These are:
Many programmers discover AspectJ as an enabling technology for other projects, most notably Spring AOP. A sister Spring project, Spring Roo, automatically maintains AspectJ inter-type declarations as its principal code generation output.
Academic interest in the semantics and implementation of aspect-oriented languages has surrounded AspectJ since its release. The leading research implementation of AspectJ is the AspectBench Compiler, or "abc"; it supports extensions for changing the syntax and semantics of the language and forms the basis for many AOP experiments that the AspectJ team can no longer support, given its broad user base.
the AspectJ implementation. Thus, JaSkel can be deployed on both cluster and Grid like
The Eclipse project supports both command-line and Ant interfaces. A related Eclipse project has steadily improved the Eclipse IDE support for AspectJ (called "AspectJ Development Tools (AJDT)") and other providers of crosscutting structure. IDE support for emacs, NetBeans, and JBuilder foundered when Xerox put them into open source, but support for Oracle's JDeveloper did appear. IDE support has been key to Java programmers using AspectJ and understanding crosscutting concerns.
Some of the important Pointcut expressions supported by AspectJ. These expressions can be combined using logical operators.
Key to its success has been engineering and language decisions that make the language usable and programs deployable. The original Xerox AspectJ implementation used source weaving, which required access to source code. When Xerox contributed the code to Eclipse, AspectJ was reimplemented using the Eclipse Java compiler and a bytecode weaver based on BCEL, so developers could write aspects for code in binary (.class) form. At this time the AspectJ language was restricted to support a per-class model essential for incremental compilation and load-time weaving. This made IDE integrations as responsive as their Java counterparts, and it let developers deploy aspects without altering the build process. This led to increased adoption, as AspectJ became usable for impatient Java programmers and enterprise-level deployments. Since then, the Eclipse team has increased performance and correctness, upgraded the AspectJ language to support Java 5 language features like generics and annotations, and integrated annotation-style pure-java aspects from AspectWerkz.
Pointcut expressions can concisely capture a wide range of events of interests, using wildcards. For example, in AspectJ syntax, the move pointcut
AspectJ can be implemented in many ways, including source-weaving or bytecode-weaving, and directly in the virtual machine (VM). In all cases, the AspectJ program becomes a valid Java program that runs in a Java VM. Classes affected by aspects are binary-compatible with unaffected classes (to remain compatible with classes compiled with the unaffected originals). Supporting multiple implementations allows the language to grow as technology changes, and being Java-compatible ensures platform availability.
Gregor Kiczales started and led the Xerox PARC team that eventually developed AspectJ. He coined the term "crosscutting". Fourth on the team, Chris Maeda coined the term "aspect-oriented programming." Jim Hugunin and Erik Hilsdale (Xerox PARC team members 12 and 13) were the original compiler and weaver engineers, Mik Kersten implemented the IDE integration and started the Eclipse AJDT project with Adrian Colyer (current lead of the AspectJ project) and Andrew Clement (current compiler engineer).
While there are many ways that software can automatically generate code, Roo operates by generating AspectJ inter-type declarations (otherwise known as mixins or introductions). This achieves separation of concerns, as the code maintained by Roo is in a different compilation unit from the code a user writes. This means Roo can incrementally modify the AspectJ inter-type declarations that it needs to and leave all other files intact.
Gregor Kiczales and colleagues at Xerox PARC developed the explicit concept of AOP, and followed this with the AspectJ AOP extension to Java. IBM's research team pursued a tool approach over a language design approach and in 2001 proposed Hyper/J and the Concern Manipulation Environment, which have not seen wide usage. The examples in this article use AspectJ as it is the most widely known AOP language.
AspectJ is an aspect-oriented programming (AOP) extension created at PARC for the Java programming language. It is available in Eclipse Foundation open-source projects, both stand-alone and integrated into Eclipse. AspectJ has become a widely used de facto standard for AOP by emphasizing simplicity and usability for end users. It uses Java-like syntax, and included IDE integrations for displaying crosscutting structure since its initial public release in 2001.
Jonas Boner and Alex Vasseur engineered the AspectWerkz project, and later contributed to the AspectJ project when it merged in the AspectWerkz annotation style and load-time weaving support.
Developments in AspectJ have revealed the potential to incorporate just-in-time compilation into the execution of aspect-oriented code to address performance demands. At run-time, an aspect weaver could translate aspects in a more efficient manner than traditional, static weaving approaches. Using AspectJ on a Java Virtual Machine, dynamic weaving of aspects at run-time has been shown to improve code performance by 26%. While some implementations of just-in-time virtual machines implement this capability through a new virtual machine, some implementations can be designed to use features that already exist in current virtual machines. The requirement of a new virtual machine is contrary to one of the original design goals of AspectJ.
To address these business concerns, an aspect weaver enables the use of widely adopted languages like Java with aspect-oriented programming through minor adaptations such as AspectJ which work with existing tools. Instead of developing an entirely new language, the aspect weaver interprets the extensions defined by AspectJ and builds "woven" Java code which can then be used by any existing Java compiler. This ensures that any existing object oriented code will still be valid aspect-oriented code and that development will feel like a natural extension of the object-oriented language. The AspectC++ programming language extends C++ through the use of an aspect weaver, offering the additional efficiency over AspectJ that is necessary for embedded systems while still retaining the benefits of aspect-oriented programming.
A metaobject protocol is one way to implement aspect-oriented programming. Many of the early founders of MOPs, including Gregor Kiczales, have since moved on to be the primary advocates for aspect-oriented programming. Kiczales et al. of PARC were hired to design AspectJ for Java, a language which does not possess a native metaobject protocol.