I have used the eclipse Code Generator Wizard plugin with the
quickstartadb sample. It successfully created java code corresponding to
the quickstartadb's wsdl file "StockQuoteService.wsdl". I added the
implementation of the StockQuoteServiceSkeleton shown in the Axis 2 web
quick start guide page to the generated skeleton code (this is "Code
Listing 1" in http://ws.apache.org/axis2/1_1/quickstartguide.html). I
have built the code without problems, using eclipse. I created a .aar
from the class, services.xml and wsdl files, and it deploys ok on a
local instance of Tomcat 5.5. I am also able to set breakpoints and
single step the code in the .aar in Tomcat using Eclipse 3.1.2. Running
the "getPrice" service returns the default value of 42.
Single stepping shows that the HashMap "map" in Code Listing 1 is
being written with 100.0 to location "IBM" when the "update" web service
is invoked from the browser ( as shown in the Axis2 Quick Start Guide)
when I enter
http://localhost:8080/axis2/rest/StockQuoteService/update?symbol=IBM&price=100
But when I subsequently use the getPrice web service with
http://localhost:8080/axis2/rest/StockQuoteService/getPrice?symbol=IBM,
the return value from the HashMap is null, and I get another return of
42 instead of 100.0!!!
My questions are :
1. Is the web service unloaded from memory by Tomcat after each
invocation? If so, is there a way to prevent this from happening?
2. The Axis 2 Quick Start Guide clearly expects the new value to show up
after a update / getPrice sequence of web service calls. Why is this
not happening with my build of the web service? Is there some hidden
serialization / re-initialization of the HashMap that should be
happening behind the scenes which is not occurring? Or what?
Before I start getting serious with this, I'd like to get a short
explanation of the above, if anyone can help me. Also, I have a total of
3 days experience with Web Services development. The www is pretty good
for getting brief snips of information about Web Services, but is there
a GOOD book on this subject?
Thanks in advance for your help.
Lenny Wintfeld
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