aop weaver

In fact, the value of the previous article is very small, but also the suspicion of repeating the wheel, there are many examples of online AOP, the list, in fact, I want to say is not this, I want to say is the last section of the Spring configuration file:We're not using the main implementations of the AOP we analyzed in the last few sections: Proxyfactorybean.java, Proxyfactory.java, Aspectjproxyfactory.j

Write in frontTime is intermittent, this time write a little about the spring AOP interceptor chain. As for how to get spring interceptors, the previous blog has been written clearly (Spring---AOP (2)---the Spring AOP JDK dynamic agent)Get the Interceptor chainFinalclassJdkdynamicaopproxy implements Aopproxy, Invocationhandler, Serializable { Publicobject Invoke

Execution connection points for matching method execution Execution (Public * * (..)) Execution (* set* (..)) Execution (* com.xyz.service.accountservice.* (..)) Execution (* com.xyz.service). (..)) Execution (* Com.xyz.service ... (..)) Within (com.xyz.service.*) (only in Spring AOP) Within (Com.xyz.service. *) (only in Spring AOP) This (Com.xyz.service.AccountService)

The successful and attractive point in the Spring framework is the management of container transactions, which provides a lightweight container transaction processing, targeting common Java classes. If Spring transaction management is used, you can incorporate some related methods into the transaction management according to your own business, which avoids Program The process of handling transactions is cumbersome. these are also attractive in ejb2.x specifications, which are well available in

Currently, the entire development community is focusing on AOP (Aspect oriented programing), and a large number of excellent frameworks that support AOP, such as spring, Jac, and JBoss AOP, have emerged. AOP seems to be a trend for a while. Java beginners can't help but feel deeply that OOP has not been able to learn i

About AOP, I have written a series of essays before: "Self-realization of simple AOP", its focus is the implementation, implementation of language is C #, the implementation of RealProxy abstract class for custom implementation, overriding the Invoke method, in order to intercept the method call to implement AOP. Interested in the park friends can go to look.Toda

internal better form, as long as everyone is well understood on it.6.2.2 Defining slice support classes has the target class, the definition slices, the slice is the combination of the notice and the pointcut, and the facets are defined by the configuration, so this definition tangent, we need to define the slice support class, the slice support class provides the notification implementation: package Lqy.springh6_2; public class Helloworldaspect { // pre-notification public void Be

an example of a previous dog: 1. Import related racks Import the following four racks based on the original one: Spring-aop-4.2.0.RELEASE.jar Com.springsource.org. aopalliance-1.0.0.jar Spring-aspects-4.2.0.RELEASE.jar Com.springsource.org. aspectj. weaver-1.6.8.RELEASE.jar 2. Compile the configuration file applicationContext. xml to import the aop namesp

method is executed.Pointcut: each class has multiple connection points. For example, all methods of ArithmethicCalculator are actually connection points, that is, the connection points are objective transactions in the program class. AOP locates a specific connection point by cutting points. Analogy: A connection point is equivalent to a record in a database, and a cut point is equivalent to a query condition. A cut point and a connection point are n

The above section discusses the class factory/object lookup service, this section talks about the implementation of AOP.AOP is the abbreviation of Aspect oriented programming, which means: face-cutting programming, through the pre-compilation method and run-time dynamic agent implementation of the unified maintenance of the program functions of a technology.Netop.core's AOP uses the proxy implementation. With proxy, your class must inherit a base clas

Note that the implementation of Spring AOP is not a dynamic proxy in Java. is in proxy mode and Cglib (code generationlibrary), but now use the ASM framework directly to manipulate bytecode without Cglib (code Generation Library). I haven't used spring for a long time. Suddenly picked up the book. I found myself unfamiliar with AOP.AOP, in fact, is about cutting-plane programming.OO focuses on the way we solve the problem (encapsulated as method), an

The concept of AOP is not mentioned here, as mentioned in the previous blog . In my opinion, the cut-in is to enhance the cut-in class (that is, the connection point Joinpoint), there are several enhancements in different positions for the enhancement can be divided into: pre-enhancement, post-enhancement, surround enhancement (front + Below, let's look at how these enhancements are implemented in code. Before we write the code, we need to introduc