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Re: What WSDL defines - the diagram!

From: Mark Baker <distobj@acm.org>
Date: Tue, 4 Nov 2003 15:03:49 -0500
To: paul.downey@bt.com
Cc: www-ws-desc@w3.org
Message-ID: <20031104150349.J31443@www.markbaker.ca>

On Tue, Nov 04, 2003 at 06:50:43PM -0000, paul.downey@bt.com wrote:
> ah, but the pipe is the transport. 

A Unix pipe can be used for transport or transfer.  In this case it's
used for transfer, as there's no operation in what is exchanged (i.e.
it's state), nor more importantly, any expectation that anything
occur beyond simply processing the data.

> try:  ls | zcat | sort

Sure, schemas and content encodings have to match up.  Unix pipes
aren't particularly self-descriptive.  Had they been, the shell would
be able to detect the mismatch and possibly re-route the data flow to
correct it.

Mark Baker.   Ottawa, Ontario, CANADA.        http://www.markbaker.ca
Received on Tuesday, 4 November 2003 15:02:10 UTC

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