Hello Chinmoy, If it is at all possible, I would highly suggest slightly modifying the implementation of the services to include well-typed class arrays instead of Object arrays. This change will help you solve this issue at hand and help you in the future when SOAP stacks change and future needs to support multiple clients. We have dealt with business clients using "any" type, and it has caused us major interop issues. Thanks, Nadeem
________________________________ From: Chinmoy Chakraborty [mailto:[EMAIL PROTECTED] Sent: Monday, March 24, 2008 12:54 PM To: [email protected] Subject: Re: How to return Object[] from axis2 Hi Nadeem, Thanks for your reply. I understand the interop problem you are talking about and the problem related to Axis2 with Axis 1.x client. In our existing web services we are using Axis1.x in both ends and Object[] worked fine for us. Now we want to upgrade to Axis2 keeping our Axis1.x clients unaffecteted. In our application we have a service and it's return type is Object[String, String, Object[String, String, Object[]]], inside which we send 'String'. As you told and Deepal also pointed to test it with Axis2 to Axis2 and it might work but as you explained 'any' type is probably creating the problem. I am looking for some kind of solution that works with Axis1.x client without any modification. Is there any way to make Axis2 work with Axis1.x client without writing any custom deserializer in (Axis1.x) client side? (My wild guess is Axis2 and Axis1.x do not deal with Array in the same manner) WSDL in axis2 for the service that return Object[] ----------------------------------------------------------------------- <xs:schema xmlns:ns="return_object_array" attributeFormDefault="qualified" elementFormDefault="qualified" targetNamespace="return_object_array"> <xs:element name="returnObjectArray"> <xs:complexType> <xs:sequence> <xs:element minOccurs="0" name="authToken" nillable="true" type="xs:string" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="returnObjectArrayResponse"> <xs:complexType> <xs:sequence> <xs:element maxOccurs="unbounded" minOccurs="0" name="return" nillable="true" type="xs:anyType" /> </xs:sequence> </xs:complexType> </xs:element> </xs:schema> WSDL in axis1.4 for the service that return Object[] ------------------------------------------------------------------------ -- <schema targetNamespace="http://localhost:8080/webservices/services/return_objec t_array" xmlns="http://www.w3.org/2001/XMLSchema";> <import namespace="http://schemas.xmlsoap.org/soap/encoding/"; /> <complexType name="ArrayOf_xsd_anyType"> <complexContent> <restriction base="soapenc:Array"> <attribute ref="soapenc:arrayType" wsdl:arrayType="xsd:anyType[]" /> </restriction> </complexContent> </complexType> </schema> </wsdl:types> <wsdl:message name="returnObjectArrayResponse"> <wsdl:part name="returnObjectArrayReturn" type="impl:ArrayOf_xsd_anyType" /> </wsdl:message> Chinmoy On Sun, Mar 23, 2008 at 12:34 PM, Hoda, Nadeem [USA] <[EMAIL PROTECTED]> wrote: Hello Chinmoy, Though Axis2 might support Object[] in its services, this is far from a best practice. The WSDL should always be strongly-typed with respect to all data constructs contained within it. All data types should have a schema within the WSDL (this is automatic for strongly-typed POJO services). As you can see, Axis2 to Axis2 communication will probably work for your web services, but when you move to Axis1.X or .NET clients, you will probably have to custom deserialize the "any" type (thus defeating the purpose of web service standards, interop expectations, etc...) Instead of Object[], you should try custom classes that define what you need. Object arrays might be convenient, but they will greatly affect interop as you are already seeing. Thanks, Nadeem ________________________________ From: Chinmoy Chakraborty [mailto:[EMAIL PROTECTED] Sent: Thursday, March 20, 2008 10:01 PM To: [email protected] Subject: Re: How to return Object[] from axis2 Hi Deepal, Thnaks a lot for your response. I can use Axis2 in our client side but we need to make it work with Axis 1.4 to support backward compatibility. I checked axis2 and found that it supports Object array as return type however, it does not work with following return type (Object array of Objejectarray of Object array): public Object[] returnObjectArray(String authToken) { Object[] retVal = new Object[3]; Object[] args = new Object[3]; args[0] = new Object[] {"Arg1", "Arg2", "Arg3"}; args[1] = new Object[] {"Arg1", "Arg2", "Arg3"}; args[2] = new Object[] {"Arg1", "Arg2", "Arg3"}; retVal[0] = new Object[] {"RetVal1", "Retval2", authToken, args}; retVal[1] = new Object[] {"RetVal3", "Retval4", authToken, args}; retVal[2] = new Object[] {"RetVal5", "Retval6", authToken, args}; return retVal; } Please let me know how I can make axis2 work with axis 1.4 for the above mentioned return type!! Chinmoy On Thu, Mar 20, 2008 at 10:30 PM, Deepal jayasinghe <[EMAIL PROTECTED]> wrote: Hi Chinmoy , If you do not mind , try to use Axis2 in the client side . If it is working then the problem should be there in either Axis1 or the way Axis2 serialize that message . Thank you! Deepal > Thanks a lot Deepal for your reply. I have a made a test service that > returns an object array. I can see the correct SOAP through the > SOAPMonitor (that Axis2 is returning) but in axis 1.4 client I am > getting following exception: > > 23938 ERROR [http8080-Processor23] > org.apache.axis.client.Call - Exception: > org.xml.sax.SAXException: Found character data inside an array element > while deserializing > at > org.apache.axis.encoding.ser.ArrayDeserializer.characters(ArrayDeseriali zer.java:502) > at > org.apache.axis.encoding.DeserializationContext.characters(Deserializati onContext.java:966) > at > org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java: 177) > at > org.apache.axis.message.MessageElement.publishToHandler(MessageElement.j ava:1141) > at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:345) > 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) > ......................... > > How can resolve above issue? > > Chinmoy > > On Wed, Mar 19, 2008 at 7:43 PM, Deepal jayasinghe <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > Yes Axis2 support Object arrays. The error may be due to some issue in > your code , however we can help you to fix that if you can send us the > code or create a JIRA attaching test code. > > Thank you! > Deepal > > Hi All, > > > > I am using hitting Axis2 with axis 1.4 client. I have a service > which > > returns Object[]. > > > > With axis 1.4 in both ends it worked well. But in axis2 it gives > > Nullpointer exception when the service tried to return Object[] > > (object array). > > > > Does axis2 support object array as return type? If yes then how > can I > > make it work with old axis1.4 client? its necessary to support old > > axis1.4 because lots of our customers are using axis1.4 client > and we > > need to make it backward compatible. > > > > Chinmoy > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
