spring-aop

Spring AOP for non spring component

感情迁移 提交于 2019-11-28 11:57:10
问题 I am writing Spring 4 application with java config. I can use AOP in this project for all spring component. But i can't use it for a normal POJO class. what is the library I need to add and what is the configuration I need to put in my config file to get this working 回答1: If you want to apply AOP to non-Spring classes you need AspectJ, not a proxy-based "AOP lite" framework like Spring AOP. For more information about how to use AspectJ (which does not need Spring at all) in combination with

Spring @Transactional method - participating transaction

烈酒焚心 提交于 2019-11-28 11:33:04
in one dao I have 2 @Transactional methods. if i do not provide any explicit properties, then what will happen, if I run one method in the body of another? Both methods will run within THE SAME ONE TRANSACTION? Proxies in Spring AOP When using Transactional, you're dealing with proxies of classes, so in this scenario: @Transactional public void doSomeThing(){ // calling this method targets a proxy doSomeThingElse(); // this method targets the actual class, not the PROXY, // so the transactional annotation has no effect } @Transactional public void doSomeThingElse(){ } you are calling the proxy

Pointcut for annotated methods or methods in annotated classes

拥有回忆 提交于 2019-11-28 10:04:30
I need a pointcut for methods in classes annotated with @X or methods annotated with @X . I also need the annotation object . If both the class and the method are annotated I prefer to get the method annotation as argument . I tried the following, which creates an "inconsistent binding" warning. (Why not just set them null?) @Around("@annotation(methodLevelX) || @within(classLevelX)") public Object advise(ProceedingJoinPoint pjp, X methodLevelX, X classLevelX) The following creates a "ambiguous binding of parameter(s) x across '||' in pointcut" warning. (Which does not necessarily make sense

Spring AOP CGLIB proxy's field is null

蹲街弑〆低调 提交于 2019-11-28 07:23:11
问题 Description Using the vlcj component, the custom component appears as a result of the AOP proxy object null. MediaList Class public class MediaList { private libvlc_media_list_t mediaListInstance; public MediaList(LibVlc libvlc, libvlc_instance_t instance, libvlc_media_list_t mediaListInstance) { this.libvlc = libvlc; this.instance = instance; createInstance(mediaListInstance); } private void createInstance(libvlc_media_list_t mediaListInstance) { logger.debug("createInstance()"); if

Is using Spring AOP for logging a good idea?

北慕城南 提交于 2019-11-28 05:19:40
I'm reading up on Spring at the moment and one of the examples used for a use of AOP is logging the start and end of method calls. I've also read that using AOP can impact performance. Is using Spring AOP a good idea for this type of logging? My understanding is that Spring uses Dynamic AOP would it be be better to use Static AOP (Like AspectJ) for this type of AOP. Curently the coding policy of the company I work for requires a ridiculous amount of logging and i want to reduce the ammount of logging code I have to write and improve the readability of my code. Am I barking up the wrong tree?

Spring 3 MVC @Controller with AOP interceptors?

こ雲淡風輕ζ 提交于 2019-11-27 19:11:02
Anyone knows why apparently it is not possible to use AOP with annotated MVC Controllers? (see Post ). I have a @Controller that stops working as soon as I add a pointcut to it. The problem is not that the interceptor is not being called, but rather the @Controller simply stops working (in the log you can see that instead of "Mapped URL path [/xx] onto handler 'Yyy'" you get a "no URL paths identified"). I know there is a mechanism for adding interceptors to controllers via the handlerMapping but my question is specific to AOP interceptors. Aren't annotated controllers just pojos in the Spring

Performance impact of using aop

被刻印的时光 ゝ 提交于 2019-11-27 18:58:54
We have started to use spring aop for cross cutting aspects of our application (security & caching at the moment). My manager worries about the performance impact of this technology although he fully understands the benefits. My question, did you encounter performance problems introduced by the use of aop (specifically spring aop)? As long as you have control of your AOP I think it's efficient. We did have performance problems anyway, so by own reasoning we were not fully in control ;) This was mostly because it's important that anyone that writes aspects has full understanding of all the

annotation equivalent of <aop:scoped-proxy>

人走茶凉 提交于 2019-11-27 18:19:27
I am moving from an xml config to annoations. i want to convert a session scoped bean that is <aop:scoped-proxy> can this be done with annotations, and if not, what can i do to still keep that declaration working? edit: I am interested in doing this in Spring 2.5 in the spring context xml, do something like: <context:component-scan base-package="com.startup.failure" scoped-proxy="interfaces" /> Note that you would need to write interfaces for all classes in that package, though. In Spring 3.0 it can be specified by the proxyMode attribute of @Scope annotation: @Scope(value = "session",

Spring AOP: get access to argument names

放肆的年华 提交于 2019-11-27 16:56:07
问题 I'm using Spring 3.x, Java 6. I have an @Around aspect with the following joinpoint: @Around("execution(public * my.service.*.*Connector.*(..))") So, I'm basically interested in intercepting all calls to public methods of classes with the class name ending with "Connector". So far so good. Now, in my aspect I would like to access the actual argument names of the methods: public doStuff(String myarg, Long anotherArg) myarg and anotherArg I understand that using: CodeSignature signature =

AOP : java.lang.IllegalArgumentException: error at ::0 can't find referenced pointcut

孤街浪徒 提交于 2019-11-27 16:28:14
问题 I am new to AOP. I got some problem like this. package org.suman.Aspect; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.aspectj.lang.annotation.Pointcut; @Aspect public class LoginAspect { //@Before("execution(public String getName())") //@Before("execution(public String org.suman.Model.Triangle.getName())") //@Before("execution(* get*())") //@Before("execution(* get*(..))") //@Before("execution(* org.suman.Model.*.get*())") //@Before(