> -----Original Message----- > From: KARR, DAVID (ATTCINW) > Sent: Thursday, July 30, 2009 11:01 AM > To: axis-user@ws.apache.org > Subject: Reexamining problem with Axis not generating container > > A couple weeks ago I posted a note about a problem (title "Axis skips > generating type if it thinks it can just make an array") where Axis 1.3 > doesn't generate a container class if an element only has a single > child. I had thought the problem was just annoying, but now I'm seeing > it's more serious than that. Axis fails to deserialize legal XML if I > don't add a kludge element to make it create the container class. > > When I generate code for the following: > > <xs:complexType name="SomethingItemPropertyListInfo"> > <xs:sequence> > <xs:element name="PropertyData" type="SomethingPropertyInfo" > minOccurs="0" maxOccurs="unbounded"/> > <xs:element name="Dummy" type="xs:boolean" minOccurs="0"/> > </xs:sequence> > </xs:complexType> > > It generates a container class corresponding to the "PropertyData" > element, and the class corresponding to the > "SomethingItemPropertyListInfo" element has a data element of that > type. > > If I comment out the "Dummy" element, however, the data element in the > class corresponding to the "SomethingItemPropertyListInfo" element is > simply an array of "SomethingPropertyInfo". > > This is annoying, but it's not fatal, as I can just change code > references, depending on whether a container class was generated or > not. > > What is fatal is that when I don't have the "Dummy" element defined, > then legal XML using these structures (note that "Dummy" is optional, > so > it doesn't need to be present in the data) fails to deserialize, > throwing an exception like the following: > > --------------------- > 2009-07-30 09:49:29,551 ERROR > [org.apache.axis.encoding.ser.BeanPropertyTarget] [set] [Thread:main] - > [Could not convert > [Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo; > to > bean field 'itemPropertyListData', type > [Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo;] > 2009-07-30 09:49:29,551 ERROR [org.apache.axis.client.Call] [invoke] > [Thread:main] - [Exception:] > java.lang.IllegalArgumentException: argument type mismatch > at > org.apache.axis.encoding.ser.BeanPropertyTarget.set(BeanPropertyTarget. > j > ava:157) > at > org.apache.axis.encoding.DeserializerImpl.valueComplete(DeserializerImp > l > .java:249) > at > org.apache.axis.encoding.ser.ArrayDeserializer.valueComplete(ArrayDeser > i > alizer.java:583) > at > org.apache.axis.encoding.DeserializerImpl.endElement(DeserializerImpl.j > a > va:509) > at > org.apache.axis.encoding.DeserializationContext.endElement(Deserializat > i > onContext.java:1087) > at > org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java > : > 171) > at > org.apache.axis.message.MessageElement.publishToHandler(MessageElement. > j > ava:1141) > at > org.apache.axis.message.RPCElement.deserialize(RPCElement.java:236) > at > org.apache.axis.message.RPCElement.getParams(RPCElement.java:384) > at org.apache.axis.client.Call.invoke(Call.java:2467) > at org.apache.axis.client.Call.invoke(Call.java:2366) > at org.apache.axis.client.Call.invoke(Call.java:1812) > -------------------- > > If I'm understanding this correctly, this error message is saying that > I > have a value of type "SomethingServicePropertyInfo[]", and I'm trying > to > assign it to a field named "itemPropertyListData", which is of type > "SomethingServicePropertyInfo[]". I must be misunderstanding this, > because I don't see how that could fail to convert.
If it matters, I've done some additional debugging and determined a little more information. The problem appears to occur when you have nested unbounded (maxOccurs=unbounded) elements. This produces a situation where a generated instance variable and setter is of type "Name[][]" (two-dimensional array). Unfortunately, the resulting value to be inserted is a "Name[]" (one-dimensional array). In addition, the error message that Axis constructs is incorrect. The error message it generates is the following: "Could not convert [Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo; to bean field 'itemPropertyListData', type [Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo;]" But it should have been (notice the one "[" changing to "[["): "Could not convert [Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo; to bean field 'itemPropertyListData', type [[Lcom.company.interfaces.csi.soap.types.SomethingServicePropertyInfo;]"
