From bernhard.rapp at student.tugraz.at  Thu Jun 21 04:39:04 2018
From: bernhard.rapp at student.tugraz.at (Bernhard Rapp)
Date: Thu Jun 21 04:41:45 2018
Subject: [xsde-users] Update existing data model with differencial XML
Message-ID: <20180621103904.Horde.Ccl6Q2bmo-ZbK2Qon-Xx8DA@webmail.tugraz.at>


Hi,
I would like to ask, if there is an efficient way, to update an  
existing data model (build by parsing the first XML) with an  
"differential" one(second XML).

I see the possibility to write a custom parser, which should make it  
possible to add the extra code. But I just want to make sure, that I  
don't oversee the obvious easy way to do so :)

The "differential" XML is within an dedicated Element-Node  
(<update/>), as you can see in the example below.

I didn't find any hint to such a thing.

Thank you very much in advance,
Bernhard
---

Again, what I want by example:
1.) first XML to setup data structure
<root>
   <Config> <!-- xsd type: config_t -->
      <Item>
        <Name>first</Name>
        <Parameter Name="first">1</Parameter>
        <Parameter Name="second">2</Parameter>
      </Item>
      <Item>
        <Name>second</Name>
        <Parameter Name="first">3</Parameter>
        <Parameter Name="second">4</Parameter>
      </Item>
   </Config>
</root>

2.) second XML to update data structure
<root>
   <Update> <!-- This node indicates that we want to update the  
existing data structure with the following diff -->
     <Config> <!-- xsd type: config_t -->
       <Item>
         <Name>first</Name>
         <Parameter Name="first">5</Parameter>
       </Item>
     </Config>
   </Update>
</root>

3.) data structure should be:
<root>
   <Config>
      <Item>
        <Name>first</Name>
        <Parameter>5</Parameter>
        <Parameter>2</Parameter>
      </Item>
      <Item>
        <Name>second</Name>
        <Parameter>3</Parameter>
        <Parameter>4</Parameter>
      </Item>
   </Config>
</root>

From boris at codesynthesis.com  Mon Jun 25 09:21:24 2018
From: boris at codesynthesis.com (Boris Kolpackov)
Date: Mon Jun 25 09:24:09 2018
Subject: [xsde-users] Update existing data model with differencial XML
In-Reply-To: <20180621103904.Horde.Ccl6Q2bmo-ZbK2Qon-Xx8DA@webmail.tugraz.at>
References: <20180621103904.Horde.Ccl6Q2bmo-ZbK2Qon-Xx8DA@webmail.tugraz.at>
Message-ID: <boris.20180625151949@codesynthesis.com>

Bernhard Rapp <bernhard.rapp@student.tugraz.at> writes:

> I would like to ask, if there is an efficient way, to update an existing
> data model (build by parsing the first XML) with an "differential"
> one(second XML).
> 
> I see the possibility to write a custom parser, which should make it
> possible to add the extra code. But I just want to make sure, that I don't
> oversee the obvious easy way to do so :)

No, there is no automatic way to do this. Your update semantics is
application-specific so there will need to be application-specific
code to handle it.

Boris