Re: [xsd-dev] "xmlns" in the <schema> element

["Pae Choi" <paechoi@xxxxxxxxxxxxx>]

Ed,

I understand the content of schema was not valid, but that was not
what I asked for. And I've been developing the schema in hand
sufficient to understand whether they are valid or not.

The schema will be built in a valid format eventually, but here I am
trying to build it a piece by piece.

Again, the question is whetehr there is a proper way and/or any
workaround to do so or not. Thanks

Any more comments?


Pae


P.S.: Also, if the getQNamePrefixToNamespaceMap()  return a Map
which contains the size, 0, and shows the element is null. But the
result schema file contains as I enclosed in the previous message.
Shouldn't we call it a bug unless we call it a feature.

P.P.S: I would try the USER list to post the original message if it
was available, but this DEV list is only one avaialbe at [1].

[1] http://www.eclipse.org/mail/index.html



> Pae,
>
> This isn't a valid schema:
>
>    <?xml version="1.0" encoding="UTF-8"?>
>    <schema/>
>
> You minimally need to choose the schema for schema namespace
>
>    xmlSchema.getQNamePrefixToNamespaceMap().put(null,
>    XSDConstants.SCHEMA_FOR_SCHEMA_URI_2001);
>
> Which would give this minimally correct result:
>
>    <?xml version="1.0" encoding="UTF-8"?>
>    <schema xmlns="http://www.w3.org/2001/XMLSchema"/>
>
> Such a schema will need to have a target namespace because the null target
> namespace won't be accessible (because the null prefix is used up) so it's
> usually best to choose a prefix for the schema for schema namespace:
>
>    xmlSchema.setSchemaForSchemaQNamePrefix("xsd");
>    xmlSchema.getQNamePrefixToNamespaceMap().put("xsd",
>    XSDConstants.SCHEMA_FOR_SCHEMA_URI_2001);
>
> Which would give this result:
>
>    <?xml version="1.0" encoding="UTF-8"?>
>    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"/>
>
> PS, these kinds of questions are better to be asked on the forum so that
> new users will benefit from the answers.
>
>
> Ed Merks/Toronto/IBM@IBMCA
> mailto: merks@xxxxxxxxxx
> 905-413-3265  (t/l 969)
>
>
>
>
>
>                       "Pae Choi"
>                       <paechoi@earthlin        To:
<xsd-dev@xxxxxxxxxxx>
>                       k.net>                   cc:
>                       Sent by:                 Subject:  [xsd-dev] "xmlns"
in the <schema> element
>                       xsd-dev-admin@ecl
>                       ipse.org
>
>
>                       02/28/2003 07:04
>                       AM
>                       Please respond to
>                       xsd-dev
>
>
>
>
>
> When I tried to create a schema that contains only the <schema> element
> without any
> attribute, I don't see how to do it at this moment. The following code
> snippet shows the
> schema as follows:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <schema xmlns=""/>
>
> In the XSDSchemaImpl class, there is a method called,
> getQNamePrefixToNamespaceMap(),
> which returns java.util.Map. But it returns 0 for its size. How should I
or
> make a workaround
> to produce the output as:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <schema/>
>
> Any comments?
>
>
> Pae
>
>
> // ####################### CODE SNIPPET #########################
> public class XMLSchemaDemo {
>
>     /** Save the schema */
>     private void saveXMLSchema(XSDSchema xmlSchema, String
> xmlSchemaURIToSave) {
>         try {
>             ResourceSet resourceSet = new ResourceSetImpl();
>             Resource resource = new
> XSDResourceImpl(URI.createDeviceURI(xmlSchemaURIToSave));
>             resource.getContents().add(xmlSchema);
>             resourceSet.getResources().add(resource);
>             resource.save(Collections.EMPTY_MAP);
>         } catch (Exception ex) {
>             System.out.println(ex.getLocalizedMessage());
>             ex.printStackTrace();
>         }
>     }
>
>     /** doIt -- the initial method */
>     private void doIt() {
>         XSDSchema xmlSchema = XSDFactory.eINSTANCE.createXSDSchema();
>         System.out.println("XML Schema: [\n" + xmlSchema + "]");
>         saveXMLSchema(xmlSchema, "./test-xsd.xsd");
>     }
>
>     /** main - the main entry */
>     public static void main(String[] args) {
>         XMLSchemaDemo app = new XMLSchemaDemo ();
>         app.doIt();
>     }
> }
>
>
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