Lotushints

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.

Ok. So this post is totally out of line. Be sure that it wouldn’t found it’s space up here if it wasn’t for it’s all around usability. Microsoft Expressions SuperView help you see how your website would behave in different browsers. You can read Expressions SuperView blog for further details or download and try it [...]

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. [...]

There are two rules I always respect and usually follow: If a code compiles and seems to work in first try, there is something terribly wrong with it. Never, ever, under no circumstances, move anything in production on Friday. I urge you not to break one of these rules, no matter how confident you feel [...]

When I was assigned to rebuild company’s web site for the second time in 7 or 8 years, I have decided that it is probably the time to implement some modularity to the database. First in line were sidebars. Why? Well, despite “awesome” notes rich text to HTML rendering, web content was always contained in [...]

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 [...]

Database names.nsf on public servers usually contains all details about users, groups, server configurations. With R8 this content is now seen on the web by default. There are plenty of possibilities how to secure the data. The easiest one though is to check Don’t allow URL open on application properties.  As always there is a [...]