Advantage of events in java

[Maya Angelou]

Hello,
I have a question running through my mind for a moment. I have yet to read a text speaking of Java beans and the notion of event. But I do not understand the advantage of using events, listeners and all the syntax that goes with it. It changes in relation to what is to simply use interfaces and a Vector of objects that implement this interface? It's faster and cleaner to just use the java-beans? Or the events are necessary.

[GlassFish]

Hello,
I'm not sure I understand what you mean by talking about interfaces and vector objects, but events on the JavaBeans used mainly to provide a universal and standardized way to monitor changes in properties of a bean. Of course you can emulate it through your own interfaces, but this is not universal. In fact, the concept of JavaBeans and listeners who are mostly designed with the ides and other similar tools, where interoperability is a definite asset.

[InterNetWorKed]

Hello,
In terms of frameworks and everything else, the rule seems to me the best is that if I do not understand what it is, I do not use it. However, in the case of listeners, this may be useful. It depends a little of your programming habits, for running a listener is often done with an ArrayList (modern equivalent of the Vector) and an interface so we are very close to your plan for you, and may you to do the listeners unawares.

[NetworkeR]

Hello,
I agree with the above post. The beans are also a concept so broad that one can think that whenever there is a set and get somewhere, it was a bean. So you use beans without knowing it. If you showed us one of your typical achievements (especially short), maybe we could assess whether there is something to which side you pass completely. I hope this information will help you.

[SoftWore]

Hello,
It is a way to code, you must not let you unmount those who speak only of framework / design pattern etc. It sets out ways to make the structures already established that we can always recognize as such. This is by no means a requirement, we can do without. The set / get listener and I use it even more when, clean code, and it makes the classes more independent. It still has the right code as you want, all ways to be advantages and disadvantages.

[cyber-noob]

Hello,
I know that I use for form bean get / set, which is very natural and satisfying to affect the function and read. At first I did differently, but I ended by saying that it was not really better, and that was even worse. So I turned everything, and everything again. For cons, I never use the events as beans, through the PropertyChangeListener I found this approach to shit (it requires to create a string identical to the name of each property!), And each Once I make listeners, I create my own interfaces, my own events, and try to see.