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From "roy huang" <lingererhu...@hotmail.com>
Subject Re: [RT] Connecting databases with Cocoon
Date Wed, 25 Feb 2004 03:05:41 GMT
My way is use SQLTransformer to get data,mapping with woody form,using flow send the data to
a pipeline,using database action to do update,add,delete work.
But I write an inputmodule to get the data from flow passing to pipeline and set to database
action.It seems you can use JXPathModule to do the same,but I don't know how to configure
this module.

Roy Huang
----- Original Message ----- 
From: "Reinhard Poetz" <reinhard@apache.org>
To: <dev@cocoon.apache.org>
Sent: Tuesday, February 24, 2004 11:37 PM
Subject: [RT] Connecting databases with Cocoon


> 
> After using Cocoon for years I still think we are not very clear in
> telling our users what is the right tool for their needs. Of course this
> depends on their use cases and their skills.
> 
> I see three different "Cocoon & databases" szenarios:
> 
> 1. Use Cocoon in enterprise szenarios which are 
>    highly interactive (--> many forms) + data which
>    has to be saved in databases
> 
>    --> use CocoonForms, controlled by the Flow, a
>        business facade written in Java, 
>        O/R-mapping as persistence layer
> 
>    --> or use a tool like XML-DBMS (see Mail from
>        Daniel) as CocoonForms - database binding
>        tool.
> 
> 2. Use Cocoon as 'pure' publishing engine
>    --> use ESQL or SQL Transformer (or sooner or
>        later USQL ...)
> 
> 
> 3. Use Cocoon 'mainly' for publishing and there are
>    only a few interactive pages that have to be
>    persistent in a database and the user is not
>    familiar with Java (this is for many people
>    a reason why to use Cocoon because they can
>    use XML everywhere and don't need to learn
>    a programming language)
> 
> As you can see szenario 1 and 2 have clear solutions, scenario 3 doesn't
> have. Some use ESQL with the drawback of mixing concers, some use
> SQLTransformer which doesn't make it easy to make
> create/update/delete-applications and some use DatabaseActions which are
> IMO the simplest way but they are not supported by flow and which are
> hidden in the depth of Cocoon (IMHO). 
> 
> IMO we should make the DatabaseActions more general components (...
> shouldn't be too difficult) which can be used from within flow or from
> actions and we should make clear statements what we as developer
> consider as 'best practices' and what are the pros and cons of each
> technology.
> 
> WDYT?
> 
> --
> Reinhard
> 
> 
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