How to call a WebService with Spring-WS through a Proxy

in analogy to some other well known templates within the spring framework, which encapsulate most of the boiler plate code when accessing and using infrastructure APIs (jdbc, jpa, jws, ldap, …), spring-ws offers as well a so called WebServiceTemplate, which allows clients for pretty easy and straightforward use of arbitrary WebServices.

the simplest way to use WebServiceTemplate is to extend from WebServiceGatewaySupport and use it via getWebServiceTemplate(): Read the rest of this entry »


is it about fancy titles in software development? no! it’s about your attitudes!

I’ve read some articles in the past that discuss the importance and hence difference between some titles or roles which are involved in software development. Whether it’s the discussion of ‘Programmer vs. Developer’, ‘Developer vs. Designer’ or ‘Designer vs. Architect’ – all those essays contain not more than hollow words to me, since they first of all argue about nifty titles.

In fact, when it comes down to the core of software development – it’s the value we create for our customers that counts, no matter if we’re called an architect or designer. questions like ‘are you a programmer or developer’ are completely irrelevant, as it doesn’t matter if we don’t take responsibility for what we’re ‘producing’. Read the rest of this entry »

why DAO won’t die

there were some statements and blog posts about the end of the DAO pattern in the last weeks, especially in conjunction with the rising of EJB 3 and it’s EntityManager. those proposals suggest to use EntityManager directly inside your business oriented services instead of encapsulating data access logic through a DAO.

i strongly disagree with this opinion. Here are some of my thoughts, why DAOs will live on: Read the rest of this entry »

mimicry in action II – dynamically implement an interface using Dynamic Proxy

this entry is the continuation of part 1, where we saw how to leverage Dynamic Proxy in order to let an object appear as if it would implement an arbitrary interface as long as it offers the same methods. Read the rest of this entry »

Posted in java. 2 Comments »

mimicry in action – dynamically implement an interface using Dynamic Proxy

do you ever had that problem, that a class asks for a certain interface that your client class hasn’t implemented, although all of the interfaces required methods are present in that class?

to make things clear, here’s a little example: Read the rest of this entry »

Posted in java. 2 Comments »

Are you pattern happy ?

i kept this secret deep inside of me for a long time. but now i can’t stand any longer and so it must come out: yes … i admit … i was pattern happy ;o)

it startet soon after post-graduation at my first job as a consultant for a big it company. at that time i was half-baked with little experiance with respect to the design of software systems. but that should change! i wanted to be a good designer – a master designer! and deep inside of me i was afraid. afraid of producing bad design proposals. afraid that one could blame me for poorly designed software systems. and so i grabbed for every support that could help. at that time design patterns were a very hot topic. it looked like they should be the ultimate solution to all of my problems since it seems that those patterns conserved the wisdom and experiance of all those great developers – experiance that i could’nt exhibit at that time Read the rest of this entry »