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Copy Schema item [message #64888]

Fri, 04 November 2005 20:58

David Carver

Messages: 174
Registered: July 2009

Senior Member

I'm running into an issue with the XSD API from eclipse. I'm trying to
copy an XSD artifact from one XSDSchema to another.

Basically, I want to take elements, complexTypes, and simpleTypes and copy
them exactly into another schema. If I go through programmicly and
create each type, they appear when I serialize them. However if I do
something like the following:

XSDElementDeclaration element =
XSDFactory.eINSTANCE.createXSDElementDeclaration();
element.setElement(xsdItem.getElement());
newMergedSchema.getContents().add(element);

They appear in the newMergedSchemas.getContents() when I examine it with
the debugger, but when I serialize the newMergeSchema, the items do not
show up in the serialization. I've tried doing an
element.updateElement(), but that didn't have any affect. I've also
tried a clone, but it doesn't do anything different.

Any ideas?

Dave

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Re: Copy Schema item [message #64910 is a reply to message #64888]

Fri, 04 November 2005 21:37

Eclipse User

Originally posted by: merks.ca.ibm.com

Dave,

I'm not sure of the context of the lines below, but you need to remember
that each XSDSchema will wrap a different DOM Document and you can't add
an element from one document to another document. Calling setElement
on a detached XSDElementDeclaration isn't going to be able to create a
nice tree either; the element needs to be attached for that. You've
tried xsdItem.cloneConcreteComponent(true, false) to produce a copy you
can insert elsewhere? This won't copy the DOM fragment over verbatim
and will lose the contents of annotations, which are representable only
in the DOM. You could use
mergedSchema.getDocument().cloneNode(xsdItem.getElement()) to copy the
fragment itself and then insert it into the mergedSchema.getElement.

Dave Carver wrote:

> I'm running into an issue with the XSD API from eclipse. I'm trying
> to copy an XSD artifact from one XSDSchema to another.
>
> Basically, I want to take elements, complexTypes, and simpleTypes and
> copy them exactly into another schema. If I go through programmicly
> and create each type, they appear when I serialize them. However if I
> do something like the following:
>
> XSDElementDeclaration element =
> XSDFactory.eINSTANCE.createXSDElementDeclaration();
> element.setElement(xsdItem.getElement());
> newMergedSchema.getContents().add(element);
>
> They appear in the newMergedSchemas.getContents() when I examine it
> with the debugger, but when I serialize the newMergeSchema, the items
> do not show up in the serialization. I've tried doing an
> element.updateElement(), but that didn't have any affect. I've also
> tried a clone, but it doesn't do anything different.
>
> Any ideas?
>
> Dave

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Re: Copy Schema item [message #64929 is a reply to message #64910]

Fri, 04 November 2005 22:23

David Carver

Messages: 174
Registered: July 2009

Senior Member

Thanks Ed, it's gotten me a bit closer, but I'm still not quite there.
Basically what the method does is takes in two XSDSchema objects, and
tries to copy the Elements, ComplexTypes, and SimpleTypes from the first
schema to the second schemas.

Here is the method that I've created where I have the code for copying
from one schema to another:

public void copyAllContents(XSDSchema xsdSchema, XSDSchema
newMergedSchema) {
Iterator xsdSchemaIterator = xsdSchema.getContents().iterator();

while (xsdSchemaIterator.hasNext()) {
XSDConcreteComponent xsdItem = (XSDConcreteComponent)xsdSchemaIterator
.next();
if (isNotImportInclude(xsdItem)) {
if (xsdItem instanceof XSDElementDeclarationImpl) {
XSDElementDeclaration element = XSDFactory
.eINSTANCE.createXSDElementDeclaration();
Element dup = xsdItem.getElement();
element.setElement((Element)dup.cloneNode(true));
newMergedSchema.getContents().add(element);
}
if (xsdItem instanceof XSDComplexTypeDefinitionImpl) {
XSDComplexTypeDefinition element = XSDFactory
.eINSTANCE.createXSDComplexTypeDefinition();
Element dup = xsdItem.getElement();
dup.cloneNode(true);
element.setElement((Element)dup.cloneNode(true));
newMergedSchema.getContents().add(element);
}
if (xsdItem instanceof XSDSimpleTypeDefinitionImpl) {
XSDSimpleTypeDefinition element = XSDFactory
.eINSTANCE.createXSDSimpleTypeDefinition();
Element dup = xsdItem.getElement();
dup.cloneNode(true);
element.setElement((Element)dup.cloneNode(true));
newMergedSchema.getContents().add(element);
}
}
}
}

This code now is producing the following (I wasn't getting anything
before):

<xsd:element/>
<xsd:complexType/>
<xsd:complexType/>
<xsd:complexType/>
<xsd:element/>
<xsd:element/>
<xsd:element/>
<xsd:complexType/>
<xsd:complexType/>
<xsd:complexType/>
<xsd:complexType/>
<xsd:complexType/>

None of the attributes information or sub nodes are showing up. I'm sure
I'm probably missing something simple.

Dave

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Re: Copy Schema item [message #64945 is a reply to message #64929]

Fri, 04 November 2005 22:52

David Carver

Messages: 174
Registered: July 2009

Senior Member

Actually, tried the cloneConcreteComponent method again and this time it
cloned the item exactly (except for the annotations which you noted it
wouldn't).

I'm sure I can find some sample code on getting the annotations over as
well.

Thanks for the help.

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Re: Copy Schema item [message #597114 is a reply to message #64888]

Fri, 04 November 2005 21:37

Ed Merks

Messages: 33264
Registered: July 2009

Senior Member

Dave,

I'm not sure of the context of the lines below, but you need to remember
that each XSDSchema will wrap a different DOM Document and you can't add
an element from one document to another document. Calling setElement
on a detached XSDElementDeclaration isn't going to be able to create a
nice tree either; the element needs to be attached for that. You've
tried xsdItem.cloneConcreteComponent(true, false) to produce a copy you
can insert elsewhere? This won't copy the DOM fragment over verbatim
and will lose the contents of annotations, which are representable only
in the DOM. You could use
mergedSchema.getDocument().cloneNode(xsdItem.getElement()) to copy the
fragment itself and then insert it into the mergedSchema.getElement.

Dave Carver wrote:

> I'm running into an issue with the XSD API from eclipse. I'm trying
> to copy an XSD artifact from one XSDSchema to another.
>
> Basically, I want to take elements, complexTypes, and simpleTypes and
> copy them exactly into another schema. If I go through programmicly
> and create each type, they appear when I serialize them. However if I
> do something like the following:
>
> XSDElementDeclaration element =
> XSDFactory.eINSTANCE.createXSDElementDeclaration();
> element.setElement(xsdItem.getElement());
> newMergedSchema.getContents().add(element);
>
> They appear in the newMergedSchemas.getContents() when I examine it
> with the debugger, but when I serialize the newMergeSchema, the items
> do not show up in the serialization. I've tried doing an
> element.updateElement(), but that didn't have any affect. I've also
> tried a clone, but it doesn't do anything different.
>
> Any ideas?
>
> Dave

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

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