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In computing, aspect-oriented programming (AOP) is a programming paradigm that aims to increase modularity by allowing the separation of cross-cutting concerns.It does so by adding behavior to existing code (an advice) without modifying the code, instead separately specifying which code is modified via a "pointcut" specification, such as "log all function calls when the function's name begins ...
Aspect weavers operate by taking instructions specified by aspects, known as advice, and automatically distributing it throughout the various classes in the program. The result of the weaving process is a set of classes with the same names as the original classes but with additional code automatically injected into the classes' functions.
In contrast, distributed AOP is a paradigm that allows distributed interception. It defines many new concepts like remote pointcuts, which are similar to traditional remote method calls, since execution is performed on a remote host. Thus, distributed AOP establishes a context where aspects can be deployed in a set of hosts.
AspectJ is an aspect-oriented programming (AOP) extension for the Java programming language, created at PARC.It is available in Eclipse Foundation open-source projects, both stand-alone and integrated into Eclipse.
Whenever users modify the database, we want to have a log of information regarding who is modifying the records. The traditional way to log is to call a log method just before modifying the database. With aspect-oriented programming, we can apply pointcut to the Modify Database method and have an advice that is called to log the required ...
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In particular, this means that the execution of advice can cause the procedure that it modifies to be bypassed completely, e.g., by specifying as an exit from the advice one of the exits from the original procedure; or the advice may change essential variables and continue with the computation so that the original procedure is executed, but ...