Need help working with xsi:type and ADB

[Glen Mazza <gl...@gmail.com>]

Hello, I'm writing a client of a web service WSDL that uses xsi:type[1],
which is a method of dynamically changing the type of element being used. 
(I'm using Axis2 with ADB).  The WSDL just asks for a RequestQuery, as
defined below:

<element name="MyRequestParameters">
	<complexType>
		<sequence>
			<element name="RequestQuery" type="abc:RequestQuery"/>
		</sequence>
	</complexType>
</element>

where RequestQuery is:
<xs:complexType name="RequestQuery">
	<xs:sequence>
		<xs:element name="reqVal" type="xsd:string">
	</xs:sequence>
</xs:complexType>

But request query has a derived type that I need to use, say
FinancialRequestQuery:

<xs:complexType name="FinancialRequestQuery">
	<xs:complexContent>
		<xs:extension base="abc:RequestQuery">
			<xs:sequence>
				<xs:element name="finanReqVal" type="xs:string"/>
			</xs:sequence>
		</xs:extension>
	</xs:complexContent>
</xs:complexType>

Over the wire, however, instead of sending a FinancialRequestQuery I have to
use a RequestQuery with xsi:type as follows:

<RequestQuery xsi:type="abc:FinancialRequestQuery">
       <reqVal>hello</reqVal>
       <abc:finanReqVal>how are you</abc:finanReqVal>
</RequestQuery>

ADB binding does not provide me the necessary setters for this though--I'm
provided a method to set reqVal (because it's normally part of Request) but
not finanReqVal (because it's only allowed here because of the xsi:type
changing it to the derived FinancialRequestQuery type.)

What I guess I need to do is, (1) given an ADB generated object such as
RequestQuery, to manually construct an xsi:type attribute and add it to that
element; and (2) to manually construct an <abc:finanReqVal> child element
and add it to the ADB RequestQuery object.  Does anyone have quick code
snippets on how to do that?  (Other ideas or suggestions for working with
xsi:type also welcome.)

Thanks,
Glen

[1] http://www.zvon.org/xxl/XMLSchemaTutorial/Output/ser_over_st1.html

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Re: Need help working with xsi:type and ADB

[Glen Mazza <gl...@gmail.com>]

I think I can answer my own question now.  The ADBBean generated,
RequestQuery in my example below, already had a nice addExtraAttributes()
method for me to add the attribute but not an addExtraElement(OMElement)
method to add the extra element--that's because my actual WSDL had an
<xsd:anyAttribute/> (causing the former method to appear) but no <xsd:any/>
sequence element.  I placed the latter in to the WSDL, and wsdl2java created
a setExtraElement(OMElement) method for me.


Glen Mazza wrote:
> 
> Hello, I'm writing a client of a web service WSDL that uses xsi:type[1],
> which is a method of dynamically changing the type of element being used. 
> (I'm using Axis2 with ADB).  The WSDL just asks for a RequestQuery, as
> defined below:
> 
> <element name="MyRequestParameters">
> 	<complexType>
> 		<sequence>
> 			<element name="RequestQuery" type="abc:RequestQuery"/>
> 		</sequence>
> 	</complexType>
> </element>
> 
> where RequestQuery is:
> <xs:complexType name="RequestQuery">
> 	<xs:sequence>
> 		<xs:element name="reqVal" type="xsd:string">
> 	</xs:sequence>
> </xs:complexType>
> 
> But request query has a derived type that I need to use, say
> FinancialRequestQuery:
> 
> <xs:complexType name="FinancialRequestQuery">
> 	<xs:complexContent>
> 		<xs:extension base="abc:RequestQuery">
> 			<xs:sequence>
> 				<xs:element name="finanReqVal" type="xs:string"/>
> 			</xs:sequence>
> 		</xs:extension>
> 	</xs:complexContent>
> </xs:complexType>
> 
> Over the wire, however, instead of sending a FinancialRequestQuery I have
> to use a RequestQuery with xsi:type as follows:
> 
> <RequestQuery xsi:type="abc:FinancialRequestQuery">
>        <reqVal>hello</reqVal>
>        <abc:finanReqVal>how are you</abc:finanReqVal>
> </RequestQuery>
> 
> ADB binding does not provide me the necessary setters for this though--I'm
> provided a method to set reqVal (because it's normally part of Request)
> but not finanReqVal (because it's only allowed here because of the
> xsi:type changing it to the derived FinancialRequestQuery type.)
> 
> What I guess I need to do is, (1) given an ADB generated object such as
> RequestQuery, to manually construct an xsi:type attribute and add it to
> that element; and (2) to manually construct an <abc:finanReqVal> child
> element and add it to the ADB RequestQuery object.  Does anyone have quick
> code snippets on how to do that?  (Other ideas or suggestions for working
> with xsi:type also welcome.)
> 
> Thanks,
> Glen
> 
> [1] http://www.zvon.org/xxl/XMLSchemaTutorial/Output/ser_over_st1.html
> 
> 

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