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// START-SAMPLE tracing-traceJoinPoints Trace join points executed
/* TraceJoinPointsBase.java */
package tracing;
import org.aspectj.lang.JoinPoint;
/**
* Trace join points being executed in context.
* To use this, define the abstract members in a subaspect.
* <b>Warning</b>: this does not trace join points that do not
* support after advice.
* @author Jim Hugunin, Wes Isberg
*/
abstract aspect TraceJoinPointsBase {
// this line is for AspectJ 1.1
// for Aspectj 1.0, use "TraceJoinPointsBase dominates * {"
declare precedence : TraceJoinPointsBase, *;
abstract protected pointcut entry();
protected pointcut exit(): call(* java..*.*(..));
final pointcut start(): entry() && !cflowbelow(entry());
final pointcut trace(): cflow(entry())
&& !cflowbelow(exit()) && !within(TraceJoinPointsBase+);
private pointcut supportsAfterAdvice() : !handler(*)
&& !preinitialization(new(..));
before(): start() { startLog(); }
before(): trace() && supportsAfterAdvice(){
logEnter(thisJoinPointStaticPart);
}
after(): trace() && supportsAfterAdvice() {
logExit(thisJoinPointStaticPart);
}
after(): start() { completeLog(); }
abstract protected void logEnter(JoinPoint.StaticPart jp);
abstract protected void logExit(JoinPoint.StaticPart jp);
abstract protected void startLog();
abstract protected void completeLog();
}
// END-SAMPLE tracing-traceJoinPoints
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