XML Schema Quesions

[Mike Logan]

I am defining an XSD file that will be used for a WSDL import. In my XSD I
am defining the objects and WS Operation messages. I have a few questions:

- For interoperabilit y sake, how should objects be named, not including
messages? Should they be like this "appUser" or "appuser". Is there any
standards anywhere?

- Our database has the object defined with underscores and eveything is
uppercase, i.e. APP_USER. Should we define objects with an underscore?

- Built-In Types versus SimpleTypes. Let's say I have an object that
represent a table/object. That field has APP_USER_DESC, that is 50
characters long. If the type is represented in the XSD like this.

<xs:complexTy pe name="app_user" >
<xs:sequence>
<xs:element name="app_user_ id" type="xs:int" />
<xs:element name="app_user_ desc" type="xs:string " />
</xs:sequence>
</xs:complexType>

I cannot set the length of the string like this:

<xs:simpleTyp e name="maxlength 50">
<xs:restricti on base="xs:string ">
<xs:maxLength value="50" />
</xs:restriction>
</xs:simpleType>
<xs:complexTy pe name="app_user" >
<xs:sequence>
<xs:element name="app_user_ id" type="xs:int" />
<xs:element name="app_user_ desc" type="maxlength 50" />
</xs:sequence>
</xs:complexType>

My question is this too limiting? I can't stick anything over 50 characters
in the database but thought I would ask?

Is there is a guide for this kind of XSD development?

Thanks,
--
Mike Logan

[Zafar Abbas]

Re: XML Schema Quesions

- Naming of elements and types is something that is domain and application
specific. You will not be able to find a XSD schema guide for that. Just go
with the convension your database or applications follow, or whatever is
easier to understand.

-Your usage of maxLength is correct.

Zafar

"Mike Logan" <MikeLogan@comm unity.nospam> wrote in message
news:995E00D5-5207-4BA6-81AA-40BD802C8307@mi crosoft.com...[color=blue]
> I am defining an XSD file that will be used for a WSDL import. In my XSD[/color]
I[color=blue]
> am defining the objects and WS Operation messages. I have a few[/color]
questions:[color=blue]
>
> - For interoperabilit y sake, how should objects be named, not including
> messages? Should they be like this "appUser" or "appuser". Is there any
> standards anywhere?
>
> - Our database has the object defined with underscores and eveything is
> uppercase, i.e. APP_USER. Should we define objects with an underscore?
>
> - Built-In Types versus SimpleTypes. Let's say I have an object that
> represent a table/object. That field has APP_USER_DESC, that is 50
> characters long. If the type is represented in the XSD like this.
>
> <xs:complexTy pe name="app_user" >
> <xs:sequence>
> <xs:element name="app_user_ id" type="xs:int" />
> <xs:element name="app_user_ desc" type="xs:string " />
> </xs:sequence>
> </xs:complexType>
>
> I cannot set the length of the string like this:
>
> <xs:simpleTyp e name="maxlength 50">
> <xs:restricti on base="xs:string ">
> <xs:maxLength value="50" />
> </xs:restriction>
> </xs:simpleType>
> <xs:complexTy pe name="app_user" >
> <xs:sequence>
> <xs:element name="app_user_ id" type="xs:int" />
> <xs:element name="app_user_ desc" type="maxlength 50" />
> </xs:sequence>
> </xs:complexType>
>
> My question is this too limiting? I can't stick anything over 50[/color]
characters[color=blue]
> in the database but thought I would ask?
>
> Is there is a guide for this kind of XSD development?
>
> Thanks,
> --
> Mike Logan[/color]