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EMF serialize custom xml [message #498520]

Tue, 17 November 2009 10:41

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

hi,master,
I come from China,I like emf.

I create Ecore file and define my model.
Control1 Control2
| |
| |
V V
ControlObject

ControlObject is parent class and Control1 and Control2 is ControlObject's subclass.

In Container the ControlObject is EReference.

In my tree editor I create Control1 and Control2 in Container node and save.

The xml is:
<Container>
<ControlObject xsi:type="Control1"/>
<ControlObject xsi:type="Control2"/>
</Container>
I want to serialize:
<Container>
<Control1/>
<Control2/>
</Container>

what can I do?
Thanks.

[Updated on: Tue, 17 November 2009 13:43]

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Re: EMF serialize cutomer xml [message #498573 is a reply to message #498520]

Tue, 17 November 2009 14:46

Ed Merks is currently offline

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Messages: 33145
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
--------------090304060105050700010303
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit

Robin,

Comments below.

robin wrote:
> hi,master,
> I come from China,I like emf.
>
> I create Ecore file and define my model.
> Control1 Control2
> | |
> | |
> V V
> ControlObject
>
> ControlObject is parent
super class/type
> class and Control1 and Control2 is ControlObject's subclass.
>
> In Container the ControlObject is EReference.
>
> In my tree editor I create Control1 and Control2 in Container node and
> save.
>
> The xml is:
> <Container>
> <ControlObject xsi:type="Control1"/>
> <ControlObject xsi:type="Control2"/>
> </Container>
> I want to serialize:
> <Container>
> <Control1/>
> <Control2/>
> </Container>
>
> what can I do?
Serialization always uses the names of features, not the names of types,
except for the root element of an XMI serialization. If you defined the
model with XML Schema, you could make use of element substitution
groups. This blog has some details:
<http://ed-merks.blogspot.com/2007/12/winters-icy-grip.html>

http://ed-merks.blogspot.com/2007/12/winters-icy-grip.html

> Thanks.
>

--------------090304060105050700010303
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Robin,<br>
<br>
Comments below.<br>
<br>
robin wrote:
<blockquote cite="mid:hdtukc$2bj$1@build.eclipse.org" type="cite">hi,master,
<br>
I come from China,I like emf.
<br>
<br>
I create Ecore file and define my model.
<br>
Control1 Control2
<br>
      |             |
<br>
      |             |
<br>
     V           V
<br>
ControlObject
<br>
<br>
ControlObject is parent </blockquote>
super class/type<br>
<blockquote cite="mid:hdtukc$2bj$1@build.eclipse.org" type="cite">class
and Control1 and Control2 is ControlObject's subclass.
<br>
<br>
In Container the ControlObject is EReference.
<br>
<br>
In my tree editor I create Control1 and Control2 in Container node and
save.
<br>
<br>
The xml is:
<br>
<Container>
<br>
   <ControlObject xsi:type="Control1"/>
<br>
   <ControlObject xsi:type="Control2"/>
<br>
</Container>
<br>
I want to serialize:
<br>
<Container>
<br>
   <Control1/>
<br>
   <Control2/>
<br>
</Container>
<br>
<br>
what can I do?
<br>
</blockquote>
Serialization always uses the names of features, not the names of
types, except for the root element of an XMI serialization. If you
defined the model with XML Schema, you could make use of element
substitution groups. This blog has some details:<a
href="http://ed-merks.blogspot.com/2007/12/winters-icy-grip.html"><br>
</a>
<blockquote><a
href="http://ed-merks.blogspot.com/2007/12/winters-icy-grip.html">http://ed-merks.blogspot.com/2007/12/winters-icy-grip.html</a><br>
</blockquote>
<br>
<blockquote cite="mid:hdtukc$2bj$1@build.eclipse.org" type="cite">Thanks.
<br>
<br>
</blockquote>
</body>
</html>

--------------090304060105050700010303--

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #498949 is a reply to message #498520]

Thu, 19 November 2009 10:19

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

Thanks you very much.
Successed.

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Re: EMF serialize custom xml [message #510901 is a reply to message #498520]

Fri, 29 January 2010 04:46

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

Hi Ed,
Thanks for your help last time.
But My model has bean changer Dynamic EMF model and created that.
But How to programmatically do my dynamic emf model with substitution groups?

Thanks. Very Happy

Very Happy

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Re: EMF serialize custom xml [message #510910 is a reply to message #510901]

Fri, 29 January 2010 06:54

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

The behavior is completely driven by the extended meta data EAnnotations
so if you look at the generated model you had working, you'd need to add
the same types of annotations as you saw there. You might look at
XSDEcoreBuilder to see how it builds up a dynamic model from an XML Schema.

robin wrote:
> Hi Ed,
> Thanks for your help last time.
> But My model has bean changer Dynamic EMF model and created that.
> But How to programmatically do my dynamic emf model with substitution
> groups?
> Thanks. :d

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #510913 is a reply to message #498520]

Fri, 29 January 2010 07:21

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

Thanks，I have been understand meta data EAnnotations.
But my model info exist in a xml file.

....
<Rule name="View" ></Rule>
<Rule name="Button"></Rule>
<Rule name="HtmlContainer"></Rule>
..

I parse this xml file and Create my emf model

ePackage = ecoreFactory.createEPackage();
ePackage.setName(PACKAGE_NAME);
ePackage.setNsURI(NS_URI);

parsexml()

for(xmlobject) {

createEClasses()
      addAttributes()
      addReference()
}
EList classifiers = ePackage.getEClassifiers();
addClassifier(classifiers, eClasses);

In addReference() I add Button and HtmlContainer object.

So I create My editor include TreeViewer.

This TreeViewer's root is View.

I add Button and HtmlContainer. But there can't transposition

+View
   --Button
   --Button
   --HtmlContainer

The Button can't move down the HtmlContainer.

How can I create my model so that the childNode can be moved random?

+View
   --Button
   --HtmlContainer
   --Button

[Updated on: Fri, 29 January 2010 07:41]

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Re: EMF serialize custom xml [message #510920 is a reply to message #510913]

Fri, 29 January 2010 02:52

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

There are no question marks in this posting.

robin wrote:
> Thanks， I have been understand meta data EAnnotations.
> But my model info exist in a xml file.
>
> ...
> <Rule name="View" ></Rule>
> <Rule name="Button" parents="ControlObject"></Rule>
> <Rule name="HtmlContainer" parents="ControlObject"</Rule>
> .
>
> I parse this xml file.
>
> ePackage = ecoreFactory.createEPackage();
> ePackage.setName(PACKAGE_NAME);
> ePackage.setNsURI(NS_URI);
>
> createEClasses()
> addAttributes()
>
>
>
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #510923 is a reply to message #510913]

Fri, 29 January 2010 08:03

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

Sorry.Just send question with the wrong key.

Thanks，I have been understand meta data EAnnotations.
But my model info exist in a xml file.

....
<Rule name="View" ></Rule>
<Rule name="Button"></Rule>
<Rule name="HtmlContainer"></Rule>
..

I parse this xml file and Create my emf model

ePackage = ecoreFactory.createEPackage();
ePackage.setName(PACKAGE_NAME);
ePackage.setNsURI(NS_URI);

parsexml()

for(xmlobject) {

createEClasses()
      addAttributes()
      addReference()
}
EList classifiers = ePackage.getEClassifiers();
addClassifier(classifiers, eClasses);

In addReference() I add Button and HtmlContainer object.

So I create My editor include TreeViewer.

This TreeViewer's root is View.

I add Button and HtmlContainer. But there can't transposition

+View
   --Button
   --Button
   --HtmlContainer

The Button can't move down the HtmlContainer.

How can I create my model so that the childNode can be moved random?

+View
   --Button
   --HtmlContainer
   --Button

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Re: EMF serialize custom xml [message #510930 is a reply to message #510923]

Fri, 29 January 2010 03:42

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

Either you need a single feature with a type general enough to hold all
possible children, or you'd need something similar to what you'd get if
you had an XML Schema with <xsd:choice maxOccurrs="unbounded">, i.e.,
you'd end up with a feature map into which all the other features would
delegate.

robin wrote:
> Sorry.Just send question with the wrong key.
>
> Thanks，I have been understand meta data EAnnotations.
> But my model info exist in a xml file.
>
> ...
> <Rule name="View" ></Rule>
> <Rule name="Button"></Rule>
> <Rule name="HtmlContainer"></Rule>
> .
>
> I parse this xml file and Create my emf model
>
> ePackage = ecoreFactory.createEPackage();
> ePackage.setName(PACKAGE_NAME);
> ePackage.setNsURI(NS_URI);
>
> parsexml()
>
> for(xmlobject) {
>
> createEClasses()
> addAttributes()
> addReference()
> }
> EList classifiers = ePackage.getEClassifiers();
> addClassifier(classifiers, eClasses);
>
>
> In addReference() I add Button and HtmlContainer object.
>
> So I create My editor include TreeViewer.
>
> This TreeViewer's root is View.
>
> I add Button and HtmlContainer. But there can't transposition
>
>
> +View
> --Button
> --Button
> --HtmlContainer
>
>
> The Button can't move down the HtmlContainer.
>
> How can I create my model so that the childNode can be moved random?
>
> +View
> --Button
> --HtmlContainer
> --Button
>
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #511588 is a reply to message #498520]

Tue, 02 February 2010 08:18

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

I choice No.1 solution.
Create a single feature.


controls = ecoreFactory.createEReference();
		complexEClass.getEStructuralFeatures().add(controls);
		controls.setName("controls");
		controls.setUpperBound(ETypedElement.UNBOUNDED_MULTIPLICITY);
		controls.setEType(EcorePackage.Literals.EFEATURE_MAP_ENTRY);
		ExtendedMetaData.INSTANCE.setFeatureKind(controls,
				ExtendedMetaData.GROUP_FEATURE);

Hold all children

EReference reference = ecoreFactory.createEReference();
ExtendedMetaData.INSTANCE.setGroup(reference, controls);

So in TreeViewer I can not inset any child(button,container).
Can you give me some i.e. about example code snippet?
Sorry I'am a slow learner. Sad

Sad

Thanks.

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Re: EMF serialize custom xml [message #511592 is a reply to message #511588]

Tue, 02 February 2010 08:25

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

Look closely at a schema with repeating choice elements and try to match
that. It's important to mark things derived, volatile, and to ensure
containment is set if you want to support children.

robin wrote:
> I choice No.1 solution. Create a single feature.
>
>
> controls = ecoreFactory.createEReference();
> complexEClass.getEStructuralFeatures().add(controls);
> controls.setName("controls");
> controls.setUpperBound(ETypedElement.UNBOUNDED_MULTIPLICITY) ;
> controls.setEType(EcorePackage.Literals.EFEATURE_MAP_ENTRY);
> ExtendedMetaData.INSTANCE.setFeatureKind(controls,
> ExtendedMetaData.GROUP_FEATURE);
>
>
> Hold all children
>
> EReference reference = ecoreFactory.createEReference();
> ExtendedMetaData.INSTANCE.setGroup(reference, controls);
>
> So in TreeViewer I can not inset any child(button,container).
> Can you give me some i.e. about example code snippet?
> Sorry I'am a slow learner. :( Thanks.

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #511606 is a reply to message #498520]

Tue, 02 February 2010 09:07

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

I have been changed my code.

reference.setVolatile(true);
reference.setDerived(true);
reference.setContainment(true);

But...

Sad

Please help me.
How can implement below recipes solution with programmatically emf model?
http://wiki.eclipse.org/EMF/Recipes#Recipe:_Exploiting_Subst itution_Groups_Without_Polluting_Your_Generated_API
Thank you very much.

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Re: EMF serialize custom xml [message #511659 is a reply to message #511606]

Tue, 02 February 2010 13:20

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

I've explained how to help yourself. Look at the XSDEcoreBuilder as an
example and write a schema with a repeating choice so you can look
closely at the feature map along with the features that delegate to it.
Don't know how to write a schema? Modify the Library tutorials XSD so
the sequence is a choice and add maxOccurs=:"unbounded"

robin wrote:
> I have been changed my code.
>
> reference.setVolatile(true);
> reference.setDerived(true);
> reference.setContainment(true);
>
>
> But... :( Please help me.
> How can implement below recipes solution with programmatically emf model?
> http://wiki.eclipse.org/EMF/Recipes#Recipe:_Exploiting_Subst itution_Groups_Without_Polluting_Your_Generated_API
>
> Thank you very much.
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: EMF serialize custom xml [message #512136 is a reply to message #498520]

Thu, 04 February 2010 06:07

robin Missing name is currently offline

robin Missing name

Friend

Messages: 16
Registered: November 2009

Junior Member

Hi,ed
Thanks for your help.I debug my code.I change my model and override XMLResourceImpl,XMLSaveImpl,XMLLoadImpl and SAXXMLHandler,XMLHelperImpl for my model.
So I succeed. Very Happy

Very Happy

But I can't find more specifically knowledge about xmlload xmlsave,xmlhandler.
Can you give some suggestion for some example?

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Re: EMF serialize custom xml [message #512196 is a reply to message #512136]

Thu, 04 February 2010 11:23

Ed Merks is currently offline

Friend

Messages: 33145
Registered: July 2009

Senior Member

Robin,

For what you've described, you'd not need to specialize any of these
things. There's really no significant body of documentation for these
low level implementation classes so you're best to use the debugger to
analyze the dynamic behavior of the source in action.

robin wrote:
> Hi,ed
> Thanks for your help.I debug my code.I change my model and override
> XMLResourceImpl,XMLSaveImpl,XMLLoadImpl and
> SAXXMLHandler,XMLHelperImpl for my model.
> So I succeed. :d But I can't find more specifically knowledge about
> xmlload xmlsave,xmlhandler.
> Can you give some suggestion for some example?

Ed Merks
Professional Support: https://www.macromodeling.com/

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