Java Reference
In-Depth Information
Figure4-4.SAP Public UDDI 3 Registry
As discussed earlier, publicly available web services that are free to use can be really good
for developers who are just getting started with web services. Also, keep in mind that in some
cases you actually can purchase the services for real business use, such as with the services
from StrikeIron, Amazon, Google, and eBay. Not only that but, these companies are pioneers
in the web services space. These two factors can add up to some fairly complex and lengthy
WSDLs. If you're still at the Hello World stage, using these services with their wide variety
of options and authentication schemes can be overwhelming. Starting with something from
XMethods may be a little easier, but many of those services have been developed by well-in-
tentioned people who may be using older versions of their services platform, and you may run
into services that don't truly meet your spec or that are just not interoperable. So, if you find
yourself banging your head against the wall for a really long time, it may not be you.
