Inheritance deserialization problem
-----------------------------------
Key: CXF-759
URL: https://issues.apache.org/jira/browse/CXF-759
Project: CXF
Issue Type: Bug
Affects Versions: 2.0-RC
Environment: Win XP, .NET SOAP Web Service
Reporter: Olivier Jacquemin
I am currently in the process of selecting a mechanism for building a java
client for a SOAP Web Services API developed in .NET. This API is fairly
simple, except for a point: some data structures returned are relatively
complex and involve inheritance.
In this case, these object structures don't seem to be correctly deserialized.
A detailed description follows: if anyone could help me either
- improving the deserialization process in Cxf, or
- obtaining a way to access the raw XML data (or the corresponding parsed
object structure) returned, so that the client application can complete the
deserialization process itself in an "ad hoc" way,
I would very much appreciate it.
Here is a very simple example after reducing the problem to its simplest form.
/**
* Web service code
* C#
*/
[WebMethod]
[XmlInclude(typeof(Dog))]
[SoapInclude(typeof(Dog))]
public Animal getAnimal()
{
return new Dog("brown");
}
public class Animal // ...
public class Dog : Animal // ...
Here is the XML contained in the response to the invocation of getAnimal(): the
xsi:type="Dog" indicates that an instance of the daughter class is returned:
<?xml version="1.0" encoding="utf-8"?>
<Animal xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:xsd="http://www.w3.org/2001/XMLSchema"; xsi:type="Dog"
xmlns="http://tempuri.org/";>
<species>Dog</species>
<color>brown</color>
</Animal>
And here is the client code, added to the auto-generated file obtained from
'wsdl2java -client':
/**
* Client code
* Java
*/
org.tempuri.Dog dog = null;
System.out.println("Invoking getAnimal...");
org.tempuri.Animal animal = port.getAnimal();
try {
dog = (Dog)animal;
}
catch (java.lang.ClassCastException e1) {
e1.printStackTrace();
}
if (dog != null) {
System.out.println("Color of dog: " + dog.color);
}
The trouble is that the cast from Animal (parent class) to Dog (daughter class)
fails: a ClassCastException is thrown.
Many thanks for any help on this issue,
_Olivier_
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
