• To: andrzej@c...
• Subject: Re: Re: The privilege of XML parsing - Data types, binaryXML and XML pipelines (LONG)
• From: Bill de hÓra <bill.dehora@p...>
• Date: Tue, 10 Dec 2002 12:31:25 +0000
• Cc: xml-dev@l..., sean.mcgrath@p...
• Organization: Propylon
• References: <3DF373FB.2786.38D63B08@localhost>
• Reply-to: bill.dehora@p...
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Andrzej Jan Taramina wrote:

> What is interesting is that this approach is finding favour with the Aspect-
> Oriented Programming crowd, where method calls and aspects (interceptors) 
> are, in a sense, pipelined together dynamically.  The architecture of the JBoss 
> project is an excellent example of such thinking and provides many benefits 
> and flexibilities.

Pipelining and AOP are different beasts. Assuming we're programming 
to the mainline,  a pipeline /will/ return the value of its last 
element, but an AOP chain /should/ returns the value of its primary 
function. All interceptors before and after the primary are 
auxilaries. An AOP chain that doesn't return on its primary is going 
to be difficult to reason about - ie pointcuts shouldn't have 
side-effects affecting main code.

Bill de hÓra

--
Propylon
www.propylon.com

• References:
  • Re: The privilege of XML parsing - Data types, binary XML and XML pipelines (LONG)
    • From: "Andrzej Jan Taramina" <andrzej@c...>

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