Re: What's difference between ref and type in XML schema

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To: ranjan_baisak@m..., xml-dev@l...
Subject: Re: What's difference between ref and type in XML schema
From: Chandrashekhar Otari <shekhar_cse@y...>
Date: Mon, 14 Mar 2005 12:37:10 +0000 (GMT)
In-reply-to: 6667

If we create the data type for an element and refer to it rather than creating the code for datatype inline in the element, we can use the same data type in other elements also.

e.g.

<xsd:element name="A" type="AType" maxOccurs="unbounded"/>
<xsd:complexType name="AType">
..
</xsd:complexType>

Here, if you want to use the same type 'AType' in other element also , say B, you can use the following syntax for that.

<xsd:element name="B" type="AType"/>.

If you coded like this

<xsd:element ref="A" maxOccurs="unbounded"/>
<xsd:element name="A">
<xsd:complexType>
...
</xsd:complexType>
</xsd:element>

then you can not use the same type in other elements. i.e. it is not reusable.

So from the point of OOP, we prefer the first form.

"Baisak, Ranjan" <ranjan_baisak@m...> wrote:

I am bit confused regarding referring an element and creating a data
type for an element and referring it.
E.g.
Referring by type

..

Referring by element itself

...

regards,
-Ranjan

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Chandrashekhar P. Otari

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