auron wrote:
Sorry to be the wicket newbie, but I was wondering if you guys could help me
to understand how Links work.
I understand that when you do Link(SomePage.class), it calls the zero param
constructor of SomePage, and when you do Link(new SomePage(someParams)) you
can call other constructors, but besides this, what are the other
differences?
I assume you're talking about PageLink not Link?
new PageLink(id, SomePage.class) will generate a URL which will
construct a new page when you click on it.
new PageLink(id, new SomePage()) obviously creates a SomePage instance
right then and there. The page instance is stored in the session and dug
out if the user clicks on the link.
You should obviously try to create links which create new pages when you
click on them, not when you construct the link (i.e. the former). For
this reason, in Wicket 1.3 we've deprecated the second form as this
seemed to confuse people. Instead, use a normal Link and call
setResponsePage() in the onClick(). At least, then it'll be obvious what
you're doing and encourage people to only construct their new pages
within a click handler, rather than within the constructor for the
original page.
Regards,
Al
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