Legacy Spring application - what does the pointcut value mean?

Legacy Spring application - what does the pointcut value mean?

References

Reference NO 1

http://stackoverflow.com/questions/15196727/legacy-spring-application-what-does-the-pointcut-value-mean

Reference NO 2

http://stackoverflow.com/tags/pointcut/hot

Reference NO 3

http://static.springsource.org/spring/docs/2.5.4/reference/aop-api.html

Reference NO 4

http://www.captaindebug.com/2011/09/using-aspectjs-afterthrowing-advice-in.html

Reference NO 5

http://www.javaworld.com/community/node/3763

Reference NO 6

http://java.dzone.com/articles/spring-aop

Reference NO 7

http://springcert.sourceforge.net/2.5/core/

Reference NO 8

http://www.aspectprogrammer.org/blogs/adrian/2006/01/