convert my DLA to @AspectJ5

[ndeloof]

Hello,

I'm using Design Level Assertion in my project. I have a SystemArchitecture Aspect to map the application layers :

public aspect SystemArchitecture {
   pointcut inPersistenceLayer()
      : within(com.capgemini.quickstart.persistence..*);
}

.. and a DLA aspect to catch any unexpected cross-layer usage :

public aspect DesignLevelAssertions {
    declare error
    : SystemArchitecture.callPersistenceImplementation() && ! SystemArchitecture.inPersistenceLayer()
    : "Do not invoke persistence layer implementation";

I'd like to convert this to AspcetJ 5 Annotation based syntax. Its ok for SystemArchitecture :

@Aspect
public class SystemArchitecture {
    @Pointcut( "within(com.capgemini.quickstart.persistence..*) " )
    void inPersistenceLayer()    {}
}

But I can't find how to convert my declare error, as a String is expected by @DeclareError() :

@Aspect
public class DesignLevelAssertions
{
    @DeclareError( ??? )
    static final String INVOKE_PERSISTENCE_LAYER =  "Do not invoke persistence layer implementation";

Any suggestion ?

[Mike Bingham]

The parameter to @DeclareError should be the pointcut expression used to bind the error. The following link has some examples:

http://www.eclipse.org/aspectj/doc/r...j-declare.html

[ndeloof]

I'm ok with what the DeclareError annotation expect, but I'm looking for a Java5 equivalent to existing aspectJ
construct. AspectJ dedicated syntax allows to set pointcuts and use them latter. The annotation string would require me to copy/paste my pointcut many times, I'd liek to avoid this and keep my SystemArchitecture aspect clean.

[Mike Bingham]

You can create named pointcuts with the @Pointcut annotation. The following links provide a few examples:

http://www.eclipse.org/aspectj/doc/r...-pcadvice.html
http://www.springframework.org/docs/...#aop-pointcuts

Once you've created a named pointcut, you can reference it in other annotations such as @DeclareError. For example:

@Pointcut("within(com.xyz.someapp.dao..*)")
public void inPersistenceLayer() {}

@DeclareError("inPersistenceLayer()")
static final String INVOKE_PERSISTENCE_LAYER =  "Do not invoke persistence layer implementation";