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Re: What is fast ?

• To: "Brod, Roman" <roman.brod@c...>,"'raghavendra.ml'" <raghavendra.ml@m...>,"Xml-Dev" <xml-dev@l...>
• Subject: Re: What is fast ?
• From: "Dare Obasanjo" <kpako@y...>
• Date: Sun, 2 Dec 2001 15:42:50 -0800
• References: <B1C81EB908FDD411BAC30090277A26C446BEA2@s...>

It would be wiser for the original poster to implement both and benchmark each
on his target platform in his target language using his target APIs instead of
asking for speculations from people on XML-DEV.

--
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When I capture the hero, I will make sure I also get his dog, monkey, ferret,
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filching keys happens to follow him around.

----- Original Message -----
From: "Brod, Roman" <roman.brod@c...>
To: "'raghavendra.ml'" <raghavendra.ml@m...>; "Xml-Dev"
<xml-dev@l...>
Sent: Friday, February 01, 2002 12:31 PM
Subject: RE:  What is fast ?


> In order to manipulate the nodes of DOM you need to run a query to select
the nodes that are subject to manipulation, which involves XPath processor,
which in case of MS DOM is encapsulated by selectNodes() method. Then you need
to iterate over the returned list of nodes to do the actual modification. If
you already have reference to these nodes that are to be modified as a result
some earlier processing, that you don't run the above query and it may be
quite fast to modify them.
> However, if you can quickly modify the underlying xml text, though somewhat
less elegant - read less elegant as euphemism for hack - then parsing the
modified xml text into a new modified DOM might turn to be faster. The actual
difference might be implementation dependent.
> cheers
> roman
>
> -----Original Message-----
> From: raghavendra.ml [mailto:raghavendra.ml@m...]
> Sent: Friday, February 01, 2002 2:17 PM
> To: Xml-Dev
> Subject:  What is fast ?
>
>
> Hi,
>
>  I need to replace 10-20 keywords in a DOM (the keys could be there in DOM
> as text nodes or attribute values in any node at any level). DOM is
> relatively small in size (say 50-60 nodes all levls included).The replaced
> DOM is used by some other process.
>
> Given the scenario .. whats faster ?
> Going through DOM for each possible text value (in Node or node attribute)
> and replace that text which could contain any of the keys and replacing the
> text
>
> or
>
> Replace all keywords in the  xml string and then make a DOM out of it
>
> Or
>
> is there any other way much faster than both ?
>
> Please note the Keywords could also be repeated.
>
> Could somebody help me in making the decision ?
>
> Appreciate any comments .
>
> Thanks & Best regards,
> Raghu
>
>
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    • From: "Brod, Roman" <roman.brod@c...>

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