A complex type is referenced in schemas using type="ns:my-type-name"
where ns is a prefix bound to the namespace in which the type is
designed. A type and an element may have the same name. It is not
possible, I think, for an ambiguity to arise within the XML Schema
system itself, or in many of the specs which use it, such as WSDL. You
can also have attributes and elements with the same name.
However, if you invent an arbitrary attribute that can hold any
qualified name, such as
global-attribute-element-or-type-name="ns:some-name"
you'll need some other attribute or element to hold information
resolving the ambiguity. The schema parser is not involved in handling
this, however. The application must deal with this ambiguity.
Jeff
Kedar, Shahar wrote:
Ann,
To add to my questions below, how can a schema parser distinguish
between a reference to an {element} and to a {complexType} if they have
the same name?
Thanks,
Shahar
-----Original Message-----
From: Kedar, Shahar [mailto:[EMAIL PROTECTED]
Sent: Monday, October 16, 2006 2:30 PM
To: axis-user@ws.apache.org
Subject: RE: Schema question
Hi Ann,
Thanks for the quick answer. Another question:
The {ref} attribute is used only to refer to a global {element}? Can it
be used to refer to a {complexType}? If so, then is it possible to
define an {element} and a {complexType} with the same name?
Thanks,
Shahar.
-----Original Message-----
From: Anne Thomas Manes [mailto:[EMAIL PROTECTED]
Sent: Monday, October 16, 2006 1:25 PM
To: axis-user@ws.apache.org
Subject: Re: Schema question
You may define a particular element only once in a schema, so if the
element is used in multiple places, you must define it as a global and
reference it from the various types that use it. (Only global elements
can be referenced.) Or perhaps you want to allow the element to be
used both as a root element and as a child element in another element.
Here's an example:
<s:element name="foo" type="s:string"/>
<s:element name="foobar" type="tns:foobarType"/>
<s:complexType name="foobarType">
<s:sequence>
<s:element ref="tns:foo"/>
<s:element name="bar" type="s:string"/>
</s:sequence>
</s:complexType>
Anne
On 10/15/06, Kedar, Shahar <[EMAIL PROTECTED]> wrote:
Hi,
Can someone explain to me when and where the {ref} attribute should be
used
inside an XML schema? Also, is it valid for an {element} to refer to a
different {element} and not a {type}?
Thanks,
Shahar.
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
