[news.eclipse.modeling.m2m] Re: [ATL]Does ATL Engineer always transfer "

[Mikaël Barbero <mikael.barbero@xxxxxxxxx>]

Dear Shan,

Seeing your metamodels, I suppose you get your metamodels from XMLSchema 
using EMF facilities.

The fact is that metamodels build from XMLSchema add some metadata 
(EAnnotation) to know how to serialize documents. Thus, this is not a 
ATL issue but an EMF issue. As i don't really know those EMF's features, 
i advise you to get in touch with EMF's guys ;)

Regards,
Mikael

Shan wrote :
> When I transform an example:
>
>     source model:
>
>     <book xmlns="http://www.m2matl.com/book"; name="ass" code="asss">
> target model which I supposed should be :
>
>     <prdocut xmlns="http://www.m2matl.com/prdocut";>
>         <name>ass</name>
>         <code>asss</name>
>     </product>
>     
>     is :
>
>     <prdocut:Prdocut xmi:version="2.0" 
> xmlns:xmi="http://www.omg.org/XMI";      
> xmlns:prdocut="http://www.m2matl.com/prdocut"; code="asss" name="ass"/>
>
> Target model'style is same as book that "name" and "code" are both 
> attributes.
>
>
> my atl source:
> -------------------
> module B2P; create OUT : Product from IN : Book;
> rule Book2Product {
>    from         b : Book!Book       to        out : Product!Product (    
>           name <- b.name,                code <- b.code        )
> }
> -------------------
>
> Is my alt rule right or wrong? If it is wrong, how to defiine atl rule 
> to make sure get correct result? else does atl engineer always transfer 
> "Element" to "Attribute" when the element is simpleType?
>
>
> Attach metamodel source below
> -------------------------------------------------------------------------------- 
>
> book's metamodel---book.ecore
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
>    xmlns:xmi="http://www.omg.org/XMI"; 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"; name="book"
>    nsURI="http://www.m2matl.com/book"; nsPrefix="book">
>  <eClassifiers xsi:type="ecore:EClass" name="Book">
>    <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>      <details key="name" value="Book"/>
>      <details key="kind" value="elementOnly"/>
>    </eAnnotations>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" 
> unique="false" lowerBound="1"
>        eType="ecore:EDataType 
> http://www.eclipse.org/emf/2003/XMLType#//String";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="element"/>
>        <details key="name" value="name"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="code" 
> unique="false" lowerBound="1"
>        eType="ecore:EDataType 
> http://www.eclipse.org/emf/2003/XMLType#//String";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="element"/>
>        <details key="name" value="code"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>  </eClassifiers>
>  <eClassifiers xsi:type="ecore:EClass" name="DocumentRoot">
>    <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>      <details key="name" value=""/>
>      <details key="kind" value="mixed"/>
>    </eAnnotations>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="mixed" 
> unique="false" upperBound="-1"
>        eType="ecore:EDataType 
> http://www.eclipse.org/emf/2002/Ecore#//EFeatureMapEntry";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="elementWildcard"/>
>        <details key="name" value=":mixed"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" 
> name="xMLNSPrefixMap" upperBound="-1"
>        eType="ecore:EClass 
> http://www.eclipse.org/emf/2002/Ecore#//EStringToStringMapEntry";
>        transient="true" containment="true" resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="xmlns:prefix"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" 
> name="xSISchemaLocation" upperBound="-1"
>        eType="ecore:EClass 
> http://www.eclipse.org/emf/2002/Ecore#//EStringToStringMapEntry";
>        transient="true" containment="true" resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="xsi:schemaLocation"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" name="book" 
> upperBound="-2" eType="#//Book"
>        volatile="true" transient="true" derived="true" 
> containment="true" resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="element"/>
>        <details key="name" value="book"/>
>        <details key="namespace" value="##targetNamespace"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>  </eClassifiers>
> </ecore:EPackage>
> --------------------------------------------------------------------------------- 
>
>
> product's metamodel---product.ecore
> <?xml version="1.0" encoding="UTF-8"?>
> <ecore:EPackage xmi:version="2.0"
>    xmlns:xmi="http://www.omg.org/XMI"; 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore"; name="product"
>    nsURI="http://www.m2matl.com/product"; nsPrefix="product">
>  <eClassifiers xsi:type="ecore:EClass" name="DocumentRoot">
>    <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>      <details key="name" value=""/>
>      <details key="kind" value="mixed"/>
>    </eAnnotations>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="mixed" 
> unique="false" upperBound="-1"
>        eType="ecore:EDataType 
> http://www.eclipse.org/emf/2002/Ecore#//EFeatureMapEntry";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="elementWildcard"/>
>        <details key="name" value=":mixed"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" 
> name="xMLNSPrefixMap" upperBound="-1"
>        eType="ecore:EClass 
> http://www.eclipse.org/emf/2002/Ecore#//EStringToStringMapEntry";
>        transient="true" containment="true" resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="xmlns:prefix"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" 
> name="xSISchemaLocation" upperBound="-1"
>        eType="ecore:EClass 
> http://www.eclipse.org/emf/2002/Ecore#//EStringToStringMapEntry";
>        transient="true" containment="true" resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="xsi:schemaLocation"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EReference" name="product" 
> upperBound="-2"
>        eType="#//Product" volatile="true" transient="true" 
> derived="true" containment="true"
>        resolveProxies="false">
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="element"/>
>        <details key="name" value="product"/>
>        <details key="namespace" value="##targetNamespace"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>  </eClassifiers>
>  <eClassifiers xsi:type="ecore:EClass" name="Product">
>    <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>      <details key="name" value="Product"/>
>      <details key="kind" value="empty"/>
>    </eAnnotations>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="code" 
> unique="false" eType="ecore:EDataType 
> http://www.eclipse.org/emf/2003/XMLType#//String";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="code"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>    <eStructuralFeatures xsi:type="ecore:EAttribute" name="name" 
> unique="false" eType="ecore:EDataType 
> http://www.eclipse.org/emf/2003/XMLType#//String";>
>      <eAnnotations 
> source="http:///org/eclipse/emf/ecore/util/ExtendedMetaData";>
>        <details key="kind" value="attribute"/>
>        <details key="name" value="name"/>
>      </eAnnotations>
>    </eStructuralFeatures>
>  </eClassifiers>
> </ecore:EPackage>



--
Mikaël Barbero - PhD Candidate
ATLAS Group (INRIA & LINA) - University of Nantes
2, rue de la Houssinière
44322 Nantes Cedex 3 - France
tel. +33 2 51 12 58 08 /\ cell.+33 6 07 63 19 00
email: Mikael.Barbero@{gmail.com, univ-nantes.fr}
http://www.sciences.univ-nantes.fr/lina/atl/