Folks,
I need some help in the Tomcat List. I am trying to get a few easy
changes made. I am not senior, not eloquent, not 'inside' enough to get
the message across. PlEaSe HeLp!!!!
Regards,
- Paul H
-------- Original Message --------
Subject: Re: Todo list for 4.0.2 b2
Date: Wed, 09 Jan 2002 12:00:08 +0000
From: Paul Hammant <[EMAIL PROTECTED]>
To: Tomcat Developers List <[EMAIL PROTECTED]>
Remy,
>Only the core objects have interfaces. Embedded is a helper object, so
>it's not an interface. Just like Catalina is not an interface.
>By the way, I don't see how having an interface makes it easier to
work >with Catalina. The only useful thing with interfaces is if you
want to >extend or reimplement something, because of Java's lack of
multiple >inheritance.
Not true. If you want to *secure* your impl from other code. You could
use three schemes:
1) seperate classloaders for the interfaces and impl
Catalina Impl Other Application*
| |
--------------------
|
System/Boot/Primordial & Catalina 'interfaces'
* that might want to invoke methods in Catalina via its interfaces.
2) Run the Object implementing the interfaces through a DynamicProxy
generator, such that the
Other Application cannot cast to the impl.
3) Combination of (1) and (2) to overcome introspection/serialization
tricks for hacking.
>Also, if you only want to use Catalina as a service inside a bigger
>framework, you should use CatalinaService, not Embedded (and no,
>there's no need for an interface for that either ;-)).
I will try with this. Two things though:
1) For exactly the same reason, it needs an interface. I *really*
*need* an interface.
2) CatalinaService exposes less methods than Embedded. Way less. I
guess the idea is that to add hosts and webapps, you should not being
doing it inVM via method calls but via a connector.
Regards,
- Paul H
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