El dom, 17-05-2009 a las 15:17 -0700, Igor Vaynberg escribió: > IOC works fine if you use constructor injection :) which is what you > should use. +1
Tor Iver, take a look at http://misko.hevery.com/code-reviewers-guide/ It is a very good reading! > the only reason people may prefer setter injection is that > configuration looks nicer. > > <param name="service" ref="some.service"/> > > looks a lot nicer then > > <constructor-arg index="2" ref="some.service"/> > > -igor > > On Sun, May 17, 2009 at 2:50 PM, Wilhelmsen Tor Iver <toriv...@arrive.no> > wrote: > >> 2 - A constructor is for constructing - your object should > >> not be in an incomplete state when the constructor is > >> finished (such a state that methods such as isVisible can not > >> be called) > > > > Tha language ensures that the object is "complete" when the constructor > > exits, but with the exception of immutalbe objects, as a "component" it > > is not complete. People are e.g. adding to lists at runtime, leading to > > possible "subcomponent initialiation" later on in the relevant method of > > a Loop or ListView for instance. It could also be argued for instance > > that a LoadableDetachableModel is /intentionally/ "incomplete" when the > > constructor exits. Overriding methods like isVisible() is also a form of > > "hack" to postpone a property value to a later time (basically the > > component stops having a "real" property called visible since the setter > > modifies a variable that the getter does not care about). > > > > The desire to have "completeness" after constructor completion also runs > > afoul with modern ideas like IoC where it is left to an outside agent to > > complete configuration of a component. > > > > However, I agree that the attention of the thread originator should be > > on the models. > > > > - Tor Iver > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > > For additional commands, e-mail: users-h...@wicket.apache.org > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
