[jira] Commented: (AXIS2-1272) Cannot differentiate between an int sent as 0 and an int sent as nil

["Tom Jordahl (JIRA)" <ji...@apache.org>]

    [ http://issues.apache.org/jira/browse/AXIS2-1272?page=comments#action_12441253 ] 
            
Tom Jordahl commented on AXIS2-1272:
------------------------------------

(Commented on AXIS2-1247 also) Note that an Axis 1.x, any integer type that is nillable has to become a Java Integer. Otherwise you can not tell if 0 is sent or it was omitted.

Axsi 2 should follow the same convention. Any nillable type must be converted in to the Java wrapper type.

> Cannot differentiate between an int sent as 0 and an int sent as nil
> --------------------------------------------------------------------
>
>                 Key: AXIS2-1272
>                 URL: http://issues.apache.org/jira/browse/AXIS2-1272
>             Project: Apache Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: databinding
>    Affects Versions: nightly
>         Environment: Axis 2 nightly, Java 1.4.2, Tomcat 4
>            Reporter: Todd Doolittle
>
> The service I deal with often sends back values a nil (or NULL).  For most datatypes, such as String and Date the value of the object is NULL (using client code generated by WSDL2JAVA).  However for anything that is an integer, it is set to 0.  This makes it impossible to tell if the value in the message was really a 0, or if it was nil="true".  
> For example, the type in the wsdl is defined as...
> <xsd:element name="response">
>    <xsd:complextType>
>       <xsd:sequence>
>          <xsd:element name="firstNumber" type="xsd:int"/>
>          <xsd:element name="secondNumber" type="xsd:int"/>
>       </xsd:sequence>
>    </xsd:complexType>
> </xsd:element>
> The server returns this response...
> <response>
>    <firstNumber>0</firstNumber>
>    <secondNumber nil="true"/>
> </response>
> In the client code, response.getFirstNumber() would return 0, and response.getSecondNumber() would also return 0.  
> To get around this could we do one of the following...
> **When an int is returned from a service as nil="true" set the value to Integer.MIN_VALUE.
> or
> **In the generated classes using java.lang.Integer instead of int and in the case of a nil="true" response, set the Integer object to null.
> or
> **In the generated classes, for each int value include a isNull() method that would return a boolean.
> Thanks!
> Todd

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