Hi Guys,
I'm trying to implement axis web services .My architecture
demands that my webservices talk to stateless session ejbs. Also I'm using
doc/literal scheme of arhitecture. Initially when i did a prototype my
webservices where simple java beans .I generated wsdl out of it and from
wsdl generated client and servercode.Since we wanted validation to take
place i declared few typeMapping elements with CastorSerializerFactory and
CastorDeSerializerFactory in deploy.wsdd and deployed the application. On
the client side i tweaked XYZBindingStub.java to add these classes. So my
functionality of validation was thus accomplished.
Later when we decided that we should make calls to
ejbs(using soap) i adopted a different approach. Since I cannot generate a
wsdl out of an ejb(correct me if im wrong) and hence the client and stub
code from wsdl I decided to use ejb provider in deploy.wsdd file and
deployed it.
My deploy.wsdd looks like this:
<service name="DepositService" provider="java:EJB">
<parameter name="allowedMethods" value="getBalance"/>
<parameter name="jndiURL" value="iiop://localhost:2809"/>
<parameter name="jndiContextClass" value
="com.ibm.websphere.naming.WsnInitialContextFactory"/>
<parameter name="remoteInterfaceName" value="com.Bank"/>
<parameter name="beanJndiName" value="ejb/com/BankHome"/>
<parameter name="homeInterfaceName" value="com.BankHome"/>
</service>
On the client side to invoke this ejb the code is:
String endpoint =
"http://localhost:9080/IllustrateRouterWeb/services/DepositService";;
Service service = new Service();
Call call = (Call)service.createCall();
call.setTargetEndpointAddress(endpoint);
call.setOperationName(new QName("getBalance"));
Object a[]=null;
String ret = (String)call.invoke(a);
System.out.println(ret);
All this works great .Now my problem is i need to send and receive complex
data types using castor.So i'm thinking to reintroduce the Typemapping
element with castor mapping in deploy.wsdd and deploy which should take
care of server side serialization/deserialization. Here are my questions
1. But i wonder how to tweak the client file to register the castor type
mappings.
2.I guess my root question is when ejbs are involved on server side is the
approach i have used of using dyanamic client invocation correct.Are there
any better ways of doing this.
3.I have a third option in my mind.The option is to declare an interface
which has all the method declrations .The session ejb would implement this
interface .I would generate a wsdl out of this interface and from the wsdl
would generate the client and stub code (WSDL2Java).Then i could send and
receive complex data types easily at the client side(as i used to do it
before) but the only disadvantage being i need to make looks ups on ejbs
and call the methods in the implementation classes of soap.This is ok but i
dont know if this is the right way of doing .
These are my concerns.All the active group ps take time to answer this mail
since this is one of crucal problems pending
thx
pradeep.
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