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vasu chowdary

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since Mar 15, 2008
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Recent posts by vasu chowdary


Today i had a discussion(argument) with my manager, he strongly saying .NET is faster than java?
As per my knowledge both are implemented using C and C++ then how come .NET is faster than JAVA?

is .NET is really faster? As a big fan of java i can't digest this.

thanks, regards
Vasu M
7 years ago
Hi all,

I have an EJB project which is deployed in Webaphere 7 and i do not have source code for that project.I know the EJB session bean class name, can i generate the client for this class/project to invoke the session bean?

thanks, regards

ok will tell you the actual scenario

and the error is
1 . The method put(String, Map<String,List<? extends TCRMPartyBObj>>) in the type Map<String,Map<String,List<? extends TCRMPartyBObj>>> is not applicable for the arguments
(String, Map<String,List<XPersonBObjExt>>)

2.The method put(String, Map<String,List<? extends TCRMPartyBObj>>) in the type Map<String,Map<String,List<? extends TCRMPartyBObj>>> is not applicable for the arguments
(String, Map<String,List<XOrganizationBObjExt>>)

in the above TCRMPartyBObj is parent for both XPersonBObjExt and XOrganizationBObjExt.

can you tell me why we are getting above compilation errors?
7 years ago

I need a solution in below case, i have three classes Party,Person and Organization , where Person and Organization is child classes of Party. I defined below collection and got one problem

can you tell me why it is giving copilation error? and can't we use use generics for above scenario?

vasu M
7 years ago
Dear friends,

I need suggestion from this forum for one of my requirement.


Want to develop a Eclipse Plugin which will be used as ETL tool.So the ETL tool should contain different graphs or stages where each stage is used as a component.Like the existing ETL tolls datastage or Abinitio, this tool should contain different components which will be used for different purposes.For example , for Aggregation a component called Aggregation.......

On a high level A component should be a drag and drop component from side panel and it should be linked to previous or next components.

which framework will simply my job for building rich UI components in RCP applications? can i go with Eclipse Modeling Framework?

Vasu M
Hi all,

I am new to EJB world,reading EJB in Action book to get the basic concepts. I understood that EJB is useful for writing reusable business compoents(pure business project) in any orgnization.To implement this i tried a HelloWorld example with below approach

1. Installed RAD with WAS7 for writing a EJB component in my local system
2.Installed JDK in my local system
3. BY pointing to WAS7 JDK, written below code and deployed to WAS7 successfully

Now i want to write a client application by pointing to Installed JDK, am i need to genrate any stubs for this?If so how can i genrate the stubs?
In webservices the interaction will be done in the form of XML's,so how the interaction will done from client to SessionBean in EJB?

Hi all,

I came to know that jsp is depricated in j2ee6 and oracle has suggested to use Facelets as view than JSP?is it true?It is very hard to digest...........
8 years ago
Dear ranch supporters,

I Have a small doubt about end point url in web wervices.Actually in my development i have 3 environments test1,test2 and test3.we have a web services application which has to test in all the 3 environments.We will deploy the same application in 3 environments.In test1 we deployed the application and in wsdl file we observed that <soap:address location="" />,location pointed to current environment.After that we developed a client application(web application) and generated the stubs using the wsdl(we copied the wsdl to client application ), in test1 and it working perfectly.In the generated stubs there is URL in proxy class which points to the wsdl in client application.

now my doubt is if we deploy the application in test2 the soap:address location will point to test2,then the am i need to generate the stubs again for the client application?

Hi all,

I just started Reading design patterns, understood well about the Factory pattern. So i red the disadvantage of factory pattern is if We add any class to heirarchy then we should modify the factory class.

In the above code if add "CreditCardAccount" to Account heirarchy then i should modify the Account factory it is violation of open closed principle.

so as per the abstract factory pattern defination it is factory for factories

In the above code i have two issues.
If add a new branch like "CreditCardAccount"(which is base for CreditCardClassic and CreditCardPremier) which extends Account then i have to modify the Factory Creator class,
If add a BusinessAccount as a child (CheckingBusinessAccount and SavingsBusinessAccount) then i have to modify the AccountFactory class to add a method getBusinssAccount() method.So it also a violation of open closed princlple.

So what is the Use of using AbstractFactory over Factory pattern?The only thing i observed is if the above AbstractFactory example changed to Factory Pattern then in side the Factory class i have to write so many if else conditions.
can anybody explain in simple terminology?(not expecting too much technical terminology)

Hi All,

I have a doubt on starting tomcat with maven.We won't give the tomcat installation path to maven, we just mention the tomcat manager URL.So how the maven will deploy and start the application with out knowing the tomcat installation directory it invoking local tomcat? or somewhere in the maven repository? because i installed tomcat in the port 8099 and i have given the manager URL as http://localhost:8080/manager, but still it is working.
can anybody explain please?
9 years ago

This post has been moved to a more appropriate forum.

Bear, move this thread to webservices forum, My question was related to webservices,specifically Java first(Bottom-up) approach in Webservices.
9 years ago
I did not understand how "Interoperability problems may occur with services/clients defined in other languages" with java first approach? can anybody explain clearly?

9 years ago
As per the IVAN's notes SOAPHEADER contains more than one block and each block must have it's own doubt is ''will each header block validate against the schema?". WSDL contains the types used in the request , responses which are in the SOAPBODY.So how the schema knows about the types used inthe SOAPHEADER?
9 years ago
I am very impressed with scdjws5studynotes by Ivan.I got a doubt while i reading this,he mentioned the drawback of RPC/literal as

A drawback is that if there is a new version of an operation in the service that needs, for instance, additional parameters
then the clients need to upgrade as the service changes, unless of course both the old and the new
version of the service are published at the same time.

what it mean by upgrade as the service changes?can any one explain this very clearly?
I am really confusing on the SOAP Nodes. Suppose i have four handlers in my application .can we treat each handler as SOAP Node.
9 years ago