Hi Daniel,
have you read my long post about how the data are handled in internal
storage? Do you have the same approach and what do you mean exactly with
"delete"? If you just delete the record from DB (i.e. via JDBC/SQL), you
have to set also _invalidated flag in my class, to force the internal
storage to be reloaded. (It's not especially efficient but it should
work.) If you have implemented your own delete(_whatever_) method in
this class, this method have to delete the ID from internal storage and
then ensure, that the page will be refetched next time (i.e. with some
extra boolean flag; in my code I just store the last ID-list generated
during fetching of page and if it becomes changed [something was
deleted/sorted in internal storage], I force the page to be refetched).
This should be the better way, since after delete/edit of an item only
the current page of data will be refetched - not the whole dataset AND
the current page. ...and first after this comes the issue with
dropScroller :). Probably, you don't need then this method at all.
daniel ccss schrieb:
Hi Paul, I put your code in my backing_bean and call the method
dropScroller(String dataTableId) after the delete method was called, I
send to this method the id of the data table:
<t:dataTable id="data" styleClass="scrollerTable" ...
But the dataTable doesn´t update, in my console I recived the message:
" dropScroller called" but nothing happen. What else do I should do,
or what I'm doing bad.
Also:
I guess Daniel, you are using event listener in your backing bean to
edit data directly in PagedList? It's the only way to have actual copy
displayed without to reload this page.
Yes, Paul in fact I´m doing that, and, as Vladimir, I call the DB each
time the PageData change. When I didn´t have your improved class
PagedList, it works fine, since the fetch was doing many times for
each action and the data update in the DataTable. For that I was
thinking in some way put another condition on your filter for the
fetch where after I called the add/delete/edit method put that
variable in true and enter to the if to do the fetch, because I see
that when I click in the page number (a fetch is doing) the data
update in the DataTable. I hope your solution works for me It looks
pretty nice.
On 7/5/07, *Vladimir Isakovich* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Paul,
many thanks for your answers.
1. Interestigly enough, after the warning the border is still
applied. If I try to do the same with style=..., there is no effect.
this has nothing to do with the data fetching.
2. I have a guess about two calls to fetchPage() in the DataModel.
May be it's because we have 2 UIComponents called DataScroller
(one with buttons and another with the message). Shuld it be
posted as a bug on dataScroller? I've seen the defects page on
myFaces, but not familiar with the procedure of addin to that list.
3. I've got it why you have your pageSize being analized and used
in getDataModel(), your page explains it. I'll try to implement
the same with an additional inputText.
4. I also noticed on your page - the dataScroller has just 2
buttons plus numbers in between. This way your strategy of
fetching data chunks should work. I am using the "standard"
scroller which has in addition fast forward/backward and
first/last buttons, and in this case I think I'm better of calling
DB every time (I've no way of predicting what page will be
requested next).
5. Probably next thing I'll try to implement: edit/delete/add, and
after that I'm planning to implement Ajax datascroller. It's not a
good user experiense, when the whole page gets re-rendered on
every action.
6. Although I've experience with javaScript, at least when I
compare myself with the java developers I've worked with, but I've
never tried using XmlHttpRequest. I have this book: 'Pro JSF and
Ajax', but it was a diappointment after loading and gettin running
their example to find out that it's based on some proprietary
jars. Since you're using this ajax dataScroller, could you please
enlight me on any existing standard for ajax (are there some
'standard' jars I can use as a base of my app)?
thanks, vlad
On 7/5/07, *Paul Iov* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Well... just a bit refining
Vladimir Isakovich schrieb:
Jul 5, 2007 1:12:09 PM com.sun.facelets.tag.jsf.ComponentRule
warnAttr
WARNING: /web/sec/examples/largeTableScroller.xhtml @104,85
border="1" Property 'border' is not on type:
org.apache.myfaces.component.html.ext .*HtmlGraphicImage*
2. I also can see a warning...
It's correct. The old good border="0" for image is deprecated
with HTML4. We should use CSS instead.
