With the abundance of posts out there, I thought I would chip in my 5 cents worth. Yes, I know I am a bit late. Release 8.5.1 is for LotusScript developer everything he could ever hope for. Specially if you are into OO programming. Finally you don’t have to check your old classes what parameters [...]
In part 10 of Design pattern series we will take look at Builder design pattern. Albeit much similarity, this pattern it is not to be mistaken with Abstract factory pattern. As Abstract Factory emphasizes a family of products and returns the product immediately, Builder focuses on constructing complex object step by step, returning product in [...]
This week, I present to you not much used, but quite useful Mediator pattern. Mediator pattern provides a unified interface to set of interfaces in a subsystem. Or, to simplify… Mediator pattern is mediator for communication between several classes.
State pattern is probably most used in review cycles. The definition says: State pattern allows an object to appear as it can change its class by altering its behaviour and state. What are you talking about? Well, imagine you are in need to build a bug tracking database. Bug reports in basics have four states. [...]
Have you ever wondered how you could call already written and quite useful Java classes in your LotusScript code? To me, this moment was, when I was trying to implement other department’s code into my own. Unfortunately I wasn’t skilled enough in ways of object development, LS2J and googling back then to actually figure out [...]
In this article, I would like to present you a design pattern that is not so common, but for sure, I wish, that in the past I would have used it. It would certainly make my life much easier. So, what is this Template method pattern all about? The Template Method Pattern defines the skeleton [...]
One of the most used patterns is also a pattern that hears by the name Observer. What does it do? Well, imagine you have a stock portfolio and you need to notify your investors every time the value of their stock changes. First, your investors need to subscribe to the stock they would like to [...]
One would think, creating and running web services on ND8 should not be incompatible with ND7 process. Wrong. There are a few quite important differences when creating web services on ND8 instead of ND7. You can now create clients. The one we’ve all been waiting for since ND7 came out. Web services created/built on ND8 [...]
Factory method pattern definition: The Factory method pattern defines an interface for creating and objects, but lets subclasses to decide which class they will create. Huh? I will try to present this pattern on a simple example. Imagine you work in a company that sales software. However, this software is, due to different laws, different [...]
Last week I wrote my first web service (yay!). I am not going to write about that, as process of creating web services is nicely described at IBM developerworks. But, back to my service. The service is used to do some work that only my consumer application should be able to do. However, due to [...]
