org.glowroot.agent.plugin.api.weaving

Annotation Type OnBefore

@Target(value=METHOD)
 @Retention(value=RUNTIME)
public @interface OnBefore

Annotates a method in a @Pointcut class that should be run just before each method execution picked out by the Pointcut. Only one method in a @Pointcut class may be annotated with @OnBefore.

An @OnBefore method can accept parameters annotated with any of the following: @BindReceiver, @BindParameter, @BindParameterArray or @BindMethodName.

An @OnBefore method may return void or a non-void type. If it returns a non-void type, the value returned by the @OnBefore method is called the traveler, and is available as input to subsequent @OnReturn, @OnThrow and @OnAfter methods by annotating a parameter on any of these methods with @BindTraveler.