It looks like this,

class Invocation {
    public String method;
    public Array<Object> args;
}

Event = Invocation

class Interceptor {
    public Interceptor next;
    public intercept(Invocation v);
    private dispatch(Invocation v);
    private delegate(Invocation v);
    intercept = trigger = execute
}

Interceptor = System = Command

When dealing with legacy code it becomes,

• Wrapper
• Facade
• Adapter
• Proxy
• Mediator
• Command

By composing multiple interceptors we get,

• Decorator
• Delegation
• Chain of Command
• Filters

When combined with metadata meta-object-programming,

• Strategy
• ServiceLocator
• Front Controller

It can be combined with a Message Bus easily as well.
It can used as the System in Entity-Component-System pattern.