"nillable" attribute inside of element

[ja...@bnb.gov.br]

Hi,

Could anyone help me?

Given the following example below, What does "nillable" mean?

Thanks,

José airton

<complexType name="Book">
<sequence>
 <element name="isbn" nillable="true" type="xsd:string" /> 
 <element name="year" type="xsd:int" /> 
 <element name="title" nillable="true" type="xsd:string" /> 
</sequence>
</complexType>

Re: "nillable" attribute inside of element

[Brian Ewins <Br...@btinternet.com>]

jairton@bnb.gov.br wrote:

> Hi,
> 
> Could anyone help me?
Yup, probably google, every single result from 
<http://www.google.com/search?q=nillable> is relevant. (I don't mean to 
be totally obnoxious saying this, you might find an explanation you 
prefer following the link)

> 
> Given the following example below, What does "nillable" mean?
> 
it means they are allowing you to do:
<Book>
	<isbn xsi:nil="true"/>
	<year>2003</year>
	<title xsi:nil="true"/>
</Book>

to indicate that the title and isbn are null, rather than just empty 
strings.

<http://www.w3.org/TR/xmlschema-0/#Nils>

Hope this helped,
	Baz

> Thanks,
> 
> José airton
> 
> <complexType name="Book">
> <sequence>
>  <element name="isbn" nillable="true" type="xsd:string" /> 
>  <element name="year" type="xsd:int" /> 
>  <element name="title" nillable="true" type="xsd:string" /> 
> </sequence>
> </complexType>
> 
> 
>