Ron,
If I may add my understanding
UDDI is synchronous to DNS in one way. The difference
between DNS and UDDI is DNS works at network layer where as UDDI works
at Application layer. Presuming a client is unaware where a particular
service is running, he might lookup in the UDDI, fetch the wsdl (which
contains precise location of the host providing the service) and invoke
the service. this setup will work in internet. In intranet such as
corporate networks, UDDI might not be of much use as two different
teams might know where the webservice is being hosted.
thanks
vishist.On 10/3/05, Ron Reynolds [EMAIL PROTECTED] wrote:
WSDL is the universal standard XML for describing a (web) service interface (web is misleadinghere - WSDL works GREAT for describing ANY service interface) including message structure andtypes (using XSD), protocols, and locations (host urls).(note, this is WSDL combined with
SOAP-Bindings - WSDL itself is much more abstract - basically just describe the operations aninterface will support - the soap-binding tags are required to map theinterface to somesoap-specific aspects just as XML Schema tags are needed to add type descriptions to the
inteface description).WSDD is an XML used by the Axis engine to control what the Axis server deploys (what classeshandle which services, what classes handle serializing the XML to/from the object model,
which services are deployed on a server, and so forth).the WSDL certainly drives what's inthe WSDD, but a WSDL alone doesn't tell Axis enough to know the HOW behind the WHAT describedby the WSDL.and UDDI, as far as i know, is still just a good idea that doesn't get that much use, at least
within intranets, but i may be mistaken on this - of all the services i've worked on (which isonly a handfull) NONE of them used UDDI because you code your clients to your serviceinterface, so the WSDL isn't really needed at runtime, and typically clients already know where
the service is running (more or less).the only thing i know that generates a wsdd is the wsdl2java tool with the -s flag. What is the different between WSDD and WSDL. My understanding isWSDD - is used to deploy a webservice on the webserver
WSDL- Is used to publish the web service in the UDDI.Is that right ?What is the best way to create a WSDD for a webservice defined in the java ( have access to the source code). Where can I find more information on
WSDD- a tutorial on how to create WSDD. Are there any open source tools that help create WSDD.Thanks a lot in advance. !
