[news.eclipse.tools.jdt] Re: Plugin Activation

["Walter Harley" <wharley@xxxxxxx>]

"Leandro" <leandrop@xxxxxxxxxxx> wrote in message 
news:eiom0d$378$1@xxxxxxxxxxxxxxxxxxxx
> Tanks Walter
>
>    The two points in manifest.mf are ok.
>    In this article 
> http://www-128.ibm.com/developerworks/opensource/library/os-ecjdt/ the 
> author said this:
>
> "Eclipse has a deferred load strategy to avoid loading plug-ins until the 
> user does something that requires their code."
>
>    In fact, when i put a "hello world" action button and click on this 
> button, looks like the plugin is activated and them my debug message is 
> printed. I read in some forum that, to put something in the initialization 
> of the plugin i must use de extension point org.eclipse.ui.startup but all 
> what i need is to know when my perspective button was fired. With the 
> extension i get this working but i think it makes my plugin load everytime 
> the Eclipse is openned, even when the perspective is not used. Am i right 
> ?
>
> Tanks again !


That's correct: if you extend org.eclipse.ui.startup, then your plug-in will 
be activated whenever Eclipse starts, which is usually a bad idea and almost 
never necessary.  The normal way to do things is to have Eclipse-LazyStart 
set to true in the manifest; then the first time some UI action or call from 
another plug-in causes your plug-in to need to be loaded, it will be loaded 
and activated.