PageStore listener...
Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
Why can't you just implement read/writeObject on your page/component? -Matej On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote: Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
Or make the fields itself not transient, but a proxy that has a transient field and the proxy can deserialize and inject itself again (see wicket-ioc project) johan On 8/23/07, Matej Knopp [EMAIL PROTECTED] wrote: Why can't you just implement read/writeObject on your page/component? -Matej On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote: Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
hi matej, hi johan, Why can't you just implement read/writeObject on your page/component? that would be an effort... here a listview, there a link and over there another image... that way i loose all the benefits of using injection - i build new logic in the components which i just wanted to get rid of. Or make the fields itself not transient, but a proxy that has a transient field and the proxy can deserialize and inject itself again (see wicket-ioc project) possible, but that reminds me on the 'XYService.getInstance()' usage in the times before IoC. it adds another indirection which makes should-be-easy things more complex. instead of being able to just inject the right class instances, i have to use proxies (so being on the save side when changing classes/implementations break serialization). there's the onComponentInstantiationListener() - easy to use and powerful. if there would be some listener being called before any other component logic is being performed that would be great. it would be enough to call this once during a request-cycle to minimize the overhead. btw, why is the OnBeforeRenderListener called after and not before OnBeforeRender() of the component? regards, --- jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote:
hi matej, hi johan,
Why can't you just implement read/writeObject on your page/component?
that would be an effort... here a listview, there a link and over there
another
image...
that way i loose all the benefits of using injection - i build new logic
in the
components which i just wanted to get rid of.
Or make the fields itself not transient, but a proxy that has a
transient
field and the proxy can deserialize and inject itself again (see
wicket-ioc
project)
possible, but that reminds me on the 'XYService.getInstance()' usage in
the
times before IoC. it adds another indirection which makes should-be-easy
things
more complex. instead of being able to just inject the right class
instances, i
have to use proxies (so being on the save side when changing
classes/implementations break serialization).
really, so this is too complicated?
public mypanel extends panel {
@SpringBean private Service service;
...
}
-igor
regards, --- jan.
-
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Re: PageStore listener...
hi igor,
public mypanel extends panel {
@SpringBean private Service service;
actually, if i use guice-injection
@Inject private ContentManager cm;
where ContentManager isn't serializable, i get tons of exceptions regarding 'not
serializable.
so, to me it seems that the proxy-stuff not always applies.
i wouldn't have asked if i hadn't had any trouble with this.
regards, --- jan.
-
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Re: PageStore listener...
are you using wicket-guice? or just the guice' raw injection?
-igor
On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote:
hi igor,
public mypanel extends panel {
@SpringBean private Service service;
actually, if i use guice-injection
@Inject private ContentManager cm;
where ContentManager isn't serializable, i get tons of exceptions
regarding 'not
serializable.
so, to me it seems that the proxy-stuff not always applies.
i wouldn't have asked if i hadn't had any trouble with this.
regards, --- jan.
-
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