Package org.aopalliance.intercept

Interface ConstructorInterceptor

All Superinterfaces:
Advice, Interceptor
public interface ConstructorInterceptor extends Interceptor
Intercepts the construction of a new object.

The user should implement the construct(ConstructorInvocation) method to modify the original behavior. E.g. the following class implements a singleton intercept (allows only one unique instance for the intercepted class): 

 class DebuggingInterceptor implements ConstructorInterceptor {
   Object instance=null;

   Object construct(ConstructorInvocation i) throws Throwable {
     if(instance==null) {
       return instance=i.proceed();
     } else {
       throw new Exception("singleton does not allow multiple instance");
     }
   }
 }