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Posted to user@struts.apache.org by xianwinwin <xi...@gmail.com> on 2008/06/13 00:07:46 UTC
struts2: how to read the 'potenrial list' from a database
I have a list of 20,000 cities; I would like the user to provide at least 2
chars and then present him a'potential list'.
I managed to do this:
JSP
<s:autocompleter theme="simple" list="state" name="StateName"/>
Java:
public class autocompleter extends ActionSupport
{
private List state;
public String execute() throws Exception{
state = new ArrayList();
state.add("Bonn");
state.add("Paris");
.
.
.
return SUCCESS;
}
public List getState(){
return state;
}
}
as you can see, the autocompliter is based on the 'state' I initially
provided. But what if the list is huge???
Q: How can I invoke an action once the user types a letter (str) and the
string gets to the invoked-method (based on the str the method will invoke
the appropriate list)
thank you!!!
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Re: [OT] Re: struts2: how to read the 'potenrial list' from a
database
Posted by xianwinwin <xi...@gmail.com>.
OK...I'm getting there! I got the idea: loadOnTextChange.
so I ended up with this JSP:
<s:url id="json" value="/groupManagement_potentialList.do" />
<s:autocompleter href="%{json}" loadOnTextChange="true"
loadMinimumCount="1" showDownArrow="true" name="userKeys" theme="ajax"
autoComplete="true"/>
BUT where is the list?!?!?!
I can invoke a method, but how does the statement above knows which list to
use?!
And what should the potentialList method return?
THANKS for any pointers!
newton.dave wrote:
>
> No CC. Just list. I don't need two copies of all list traffic.
>
>
> --- On Fri, 6/13/08, Onur Idrisoglu <on...@gmail.com> wrote:
>
>> From: Onur Idrisoglu <on...@gmail.com>
>> Subject: Re: struts2: how to read the 'potenrial list' from a database
>> To: "Struts Users Mailing List" <us...@struts.apache.org>,
>> newton.dave@yahoo.com
>> Date: Friday, June 13, 2008, 10:09 AM
>> I'm not sure if you can do that with autocompleter..
>> Autocompleter need the whole list at startup, but as I
>> understand you want
>> to shape this list dynamically according to what user
>> types. Each time user
>> types a character, the action will create a new list...
>>
>> Maybe you can use DWR to do this
>>
>> On Fri, Jun 13, 2008 at 3:13 PM, Dave Newton
>> <ne...@yahoo.com> wrote:
>>
>> > --- On Fri, 6/13/08, srichin
>> <sr...@infosys.com> wrote:
>> > > I want the objects id to be the value of the
>> option and
>> > > code to bethe label to be shown in the
>> autocompleter dropdown options.
>> > >
>> > > I should be shown codes as select options in the
>> dropdown and when I
>> > > select any of the code, the corresponding id
>> should go as the
>> > > value that has been selected
>> > >
>> > > Pointers on this would be of great help
>> >
>> > I understand what you're trying to do, I don't
>> understand what specific
>> > aspect you're having a problem with. You said you
>> implemented the action
>> > with a hard-coded list. An action that uses a database
>> instead is almost
>> > exactly the same, but it accesses a database instead
>> of using a hard-coded
>> > list.
>> >
>> > The Struts 2.0 autocompleter docs [1] summarize the
>> usage of the tag; the
>> > action will be called with the current value in the
>> text box. You use that
>> > partial value to do a database search (or filter an
>> existing list, or
>> > however you'll implement that part).
>> >
>> > Dave
>> >
>> > [1]
>> >
>> http://struts.apache.org/2.0.11/docs/ajax-tags.html#AjaxTags-autocompleterTag
>> >
>> > > newton.dave wrote:
>> > > >
>> > > > Search a database of city names?
>> > > >
>> > > > I'm not sure what you're asking.
>> > > >
>> > > > --- On Thu, 6/12/08, xianwinwin
>> > > <xi...@gmail.com> wrote:
>> > >>> I have a list of 20,000 cities; I would
>> like the
>> > >>> user to provide at least 2 chars and then
>> present him a'potential
>> > > list'.
>> > > >>
>> > > >> I managed to do this:
>> > > >>
>> > > >> JSP
>> > > >>
>> > > >> <s:autocompleter
>> theme="simple"
>> > > >> list="state"
>> > > name="StateName"/>
>> > > >>
>> > > >>
>> > > >>
>> > > >> Java:
>> > > >>
>> > > >> public class autocompleter extends
>> ActionSupport
>> > > >> {
>> > > >> private List state;
>> > > >> public String execute() throws
>> Exception{
>> > > >> state = new ArrayList();
>> > > >> state.add("Bonn");
>> > > >> state.add("Paris");
>> > > >> .
>> > > >> .
>> > > >> .
>> > > >>
>> > > >> return SUCCESS;
>> > > >> }
>> > > >>
>> > > >> public List getState(){
>> > > >> return state;
>> > > >> }
>> > > >> }
>> > > >>
>> > > >> as you can see, the autocompliter is
>> based on the
>> > > >> 'state' I initially
>> > > >> provided. But what if the list is
>> huge???
>> > > >>
>> > > >> Q: How can I invoke an action once the
>> user types
>> > > a letter
>> > > >> (str) and the
>> > > >> string gets to the invoked-method (based
>> on the
>> > > str the
>> > > >> method will invoke
>> > > >> the appropriate list)
>> > > >>
>> > > >> thank you!!!
>> > > >> --
>> > > >> View this message in context:
>> > > >>
>> > >
>> >
>> http://www.nabble.com/struts2%3A-how-to-read-the-%27potenrial-list%27-from-a-database-tp17810726p17810726.html
>> > > >> Sent from the Struts - User mailing list
>> archive
>> > > at
>> > > >> Nabble.com.
>> > > >>
>> > > >>
>> > > >>
>> > >
>> ---------------------------------------------------------------------
>> > > >> To unsubscribe, e-mail:
>> > > user-unsubscribe@struts.apache.org
>> > > >> For additional commands, e-mail:
>> > > >> user-help@struts.apache.org
>> > > >
>> > > >
>> > >
>> ---------------------------------------------------------------------
>> > > > To unsubscribe, e-mail:
>> > > user-unsubscribe@struts.apache.org
>> > > > For additional commands, e-mail:
>> > > user-help@struts.apache.org
>> > > >
>> > > >
>> > > >
>> > >
>> > > --
>> > > View this message in context:
>> > >
>> >
>> http://www.nabble.com/struts2%3A-autocompleter---howto-read-the-%27potenrial-list%27-from-a-database-tp17810726p17820863.html
>> > > Sent from the Struts - User mailing list archive
>> at
>> > > Nabble.com.
>> > >
>> > >
>> > >
>> ---------------------------------------------------------------------
>> > > To unsubscribe, e-mail:
>> user-unsubscribe@struts.apache.org
>> > > For additional commands, e-mail:
>> > > user-help@struts.apache.org
>> >
>> >
>> ---------------------------------------------------------------------
>> > To unsubscribe, e-mail:
>> user-unsubscribe@struts.apache.org
>> > For additional commands, e-mail:
>> user-help@struts.apache.org
>> >
>> >
>>
>>
>> --
>> -- --
>> Onur Idrisoglu
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
--
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[OT] Re: struts2: how to read the 'potenrial list' from a database
Posted by Dave Newton <ne...@yahoo.com>.
No CC. Just list. I don't need two copies of all list traffic.
--- On Fri, 6/13/08, Onur Idrisoglu <on...@gmail.com> wrote:
> From: Onur Idrisoglu <on...@gmail.com>
> Subject: Re: struts2: how to read the 'potenrial list' from a database
> To: "Struts Users Mailing List" <us...@struts.apache.org>, newton.dave@yahoo.com
> Date: Friday, June 13, 2008, 10:09 AM
> I'm not sure if you can do that with autocompleter..
> Autocompleter need the whole list at startup, but as I
> understand you want
> to shape this list dynamically according to what user
> types. Each time user
> types a character, the action will create a new list...
>
> Maybe you can use DWR to do this
>
> On Fri, Jun 13, 2008 at 3:13 PM, Dave Newton
> <ne...@yahoo.com> wrote:
>
> > --- On Fri, 6/13/08, srichin
> <sr...@infosys.com> wrote:
> > > I want the objects id to be the value of the
> option and
> > > code to bethe label to be shown in the
> autocompleter dropdown options.
> > >
> > > I should be shown codes as select options in the
> dropdown and when I
> > > select any of the code, the corresponding id
> should go as the
> > > value that has been selected
> > >
> > > Pointers on this would be of great help
> >
> > I understand what you're trying to do, I don't
> understand what specific
> > aspect you're having a problem with. You said you
> implemented the action
> > with a hard-coded list. An action that uses a database
> instead is almost
> > exactly the same, but it accesses a database instead
> of using a hard-coded
> > list.
> >
> > The Struts 2.0 autocompleter docs [1] summarize the
> usage of the tag; the
> > action will be called with the current value in the
> text box. You use that
> > partial value to do a database search (or filter an
> existing list, or
> > however you'll implement that part).
> >
> > Dave
> >
> > [1]
> >
> http://struts.apache.org/2.0.11/docs/ajax-tags.html#AjaxTags-autocompleterTag
> >
> > > newton.dave wrote:
> > > >
> > > > Search a database of city names?
> > > >
> > > > I'm not sure what you're asking.
> > > >
> > > > --- On Thu, 6/12/08, xianwinwin
> > > <xi...@gmail.com> wrote:
> > >>> I have a list of 20,000 cities; I would
> like the
> > >>> user to provide at least 2 chars and then
> present him a'potential
> > > list'.
> > > >>
> > > >> I managed to do this:
> > > >>
> > > >> JSP
> > > >>
> > > >> <s:autocompleter
> theme="simple"
> > > >> list="state"
> > > name="StateName"/>
> > > >>
> > > >>
> > > >>
> > > >> Java:
> > > >>
> > > >> public class autocompleter extends
> ActionSupport
> > > >> {
> > > >> private List state;
> > > >> public String execute() throws
> Exception{
> > > >> state = new ArrayList();
> > > >> state.add("Bonn");
> > > >> state.add("Paris");
> > > >> .
> > > >> .
> > > >> .
> > > >>
> > > >> return SUCCESS;
> > > >> }
> > > >>
> > > >> public List getState(){
> > > >> return state;
> > > >> }
> > > >> }
> > > >>
> > > >> as you can see, the autocompliter is
> based on the
> > > >> 'state' I initially
> > > >> provided. But what if the list is
> huge???
> > > >>
> > > >> Q: How can I invoke an action once the
> user types
> > > a letter
> > > >> (str) and the
> > > >> string gets to the invoked-method (based
> on the
> > > str the
> > > >> method will invoke
> > > >> the appropriate list)
> > > >>
> > > >> thank you!!!
> > > >> --
> > > >> View this message in context:
> > > >>
> > >
> >
> http://www.nabble.com/struts2%3A-how-to-read-the-%27potenrial-list%27-from-a-database-tp17810726p17810726.html
> > > >> Sent from the Struts - User mailing list
> archive
> > > at
> > > >> Nabble.com.
> > > >>
> > > >>
> > > >>
> > >
> ---------------------------------------------------------------------
> > > >> To unsubscribe, e-mail:
> > > user-unsubscribe@struts.apache.org
> > > >> For additional commands, e-mail:
> > > >> user-help@struts.apache.org
> > > >
> > > >
> > >
> ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail:
> > > user-unsubscribe@struts.apache.org
> > > > For additional commands, e-mail:
> > > user-help@struts.apache.org
> > > >
> > > >
> > > >
> > >
> > > --
> > > View this message in context:
> > >
> >
> http://www.nabble.com/struts2%3A-autocompleter---howto-read-the-%27potenrial-list%27-from-a-database-tp17810726p17820863.html
> > > Sent from the Struts - User mailing list archive
> at
> > > Nabble.com.
> > >
> > >
> > >
> ---------------------------------------------------------------------
> > > To unsubscribe, e-mail:
> user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail:
> > > user-help@struts.apache.org
> >
> >
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> user-unsubscribe@struts.apache.org
> > For additional commands, e-mail:
> user-help@struts.apache.org
> >
> >
>
>
> --
> -- --
> Onur Idrisoglu
---------------------------------------------------------------------
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Re: struts2: how to read the 'potenrial list' from a database
Posted by Onur Idrisoglu <on...@gmail.com>.
I'm not sure if you can do that with autocompleter..
Autocompleter need the whole list at startup, but as I understand you want
to shape this list dynamically according to what user types. Each time user
types a character, the action will create a new list...
Maybe you can use DWR to do this
On Fri, Jun 13, 2008 at 3:13 PM, Dave Newton <ne...@yahoo.com> wrote:
> --- On Fri, 6/13/08, srichin <sr...@infosys.com> wrote:
> > I want the objects id to be the value of the option and
> > code to bethe label to be shown in the autocompleter dropdown options.
> >
> > I should be shown codes as select options in the dropdown and when I
> > select any of the code, the corresponding id should go as the
> > value that has been selected
> >
> > Pointers on this would be of great help
>
> I understand what you're trying to do, I don't understand what specific
> aspect you're having a problem with. You said you implemented the action
> with a hard-coded list. An action that uses a database instead is almost
> exactly the same, but it accesses a database instead of using a hard-coded
> list.
>
> The Struts 2.0 autocompleter docs [1] summarize the usage of the tag; the
> action will be called with the current value in the text box. You use that
> partial value to do a database search (or filter an existing list, or
> however you'll implement that part).
>
> Dave
>
> [1]
> http://struts.apache.org/2.0.11/docs/ajax-tags.html#AjaxTags-autocompleterTag
>
> > newton.dave wrote:
> > >
> > > Search a database of city names?
> > >
> > > I'm not sure what you're asking.
> > >
> > > --- On Thu, 6/12/08, xianwinwin
> > <xi...@gmail.com> wrote:
> >>> I have a list of 20,000 cities; I would like the
> >>> user to provide at least 2 chars and then present him a'potential
> > list'.
> > >>
> > >> I managed to do this:
> > >>
> > >> JSP
> > >>
> > >> <s:autocompleter theme="simple"
> > >> list="state"
> > name="StateName"/>
> > >>
> > >>
> > >>
> > >> Java:
> > >>
> > >> public class autocompleter extends ActionSupport
> > >> {
> > >> private List state;
> > >> public String execute() throws Exception{
> > >> state = new ArrayList();
> > >> state.add("Bonn");
> > >> state.add("Paris");
> > >> .
> > >> .
> > >> .
> > >>
> > >> return SUCCESS;
> > >> }
> > >>
> > >> public List getState(){
> > >> return state;
> > >> }
> > >> }
> > >>
> > >> as you can see, the autocompliter is based on the
> > >> 'state' I initially
> > >> provided. But what if the list is huge???
> > >>
> > >> Q: How can I invoke an action once the user types
> > a letter
> > >> (str) and the
> > >> string gets to the invoked-method (based on the
> > str the
> > >> method will invoke
> > >> the appropriate list)
> > >>
> > >> thank you!!!
> > >> --
> > >> View this message in context:
> > >>
> >
> http://www.nabble.com/struts2%3A-how-to-read-the-%27potenrial-list%27-from-a-database-tp17810726p17810726.html
> > >> Sent from the Struts - User mailing list archive
> > at
> > >> Nabble.com.
> > >>
> > >>
> > >>
> > ---------------------------------------------------------------------
> > >> To unsubscribe, e-mail:
> > user-unsubscribe@struts.apache.org
> > >> For additional commands, e-mail:
> > >> user-help@struts.apache.org
> > >
> > >
> > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail:
> > user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail:
> > user-help@struts.apache.org
> > >
> > >
> > >
> >
> > --
> > View this message in context:
> >
> http://www.nabble.com/struts2%3A-autocompleter---howto-read-the-%27potenrial-list%27-from-a-database-tp17810726p17820863.html
> > Sent from the Struts - User mailing list archive at
> > Nabble.com.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail:
> > user-help@struts.apache.org
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
-- --
Onur Idrisoglu
Re: struts2: how to read the 'potenrial list' from a database
Posted by Dave Newton <ne...@yahoo.com>.
--- On Fri, 6/13/08, srichin <sr...@infosys.com> wrote:
> I want the objects id to be the value of the option and
> code to bethe label to be shown in the autocompleter dropdown options.
>
> I should be shown codes as select options in the dropdown and when I
> select any of the code, the corresponding id should go as the
> value that has been selected
>
> Pointers on this would be of great help
I understand what you're trying to do, I don't understand what specific aspect you're having a problem with. You said you implemented the action with a hard-coded list. An action that uses a database instead is almost exactly the same, but it accesses a database instead of using a hard-coded list.
The Struts 2.0 autocompleter docs [1] summarize the usage of the tag; the action will be called with the current value in the text box. You use that partial value to do a database search (or filter an existing list, or however you'll implement that part).
Dave
[1] http://struts.apache.org/2.0.11/docs/ajax-tags.html#AjaxTags-autocompleterTag
> newton.dave wrote:
> >
> > Search a database of city names?
> >
> > I'm not sure what you're asking.
> >
> > --- On Thu, 6/12/08, xianwinwin
> <xi...@gmail.com> wrote:
>>> I have a list of 20,000 cities; I would like the
>>> user to provide at least 2 chars and then present him a'potential
> list'.
> >>
> >> I managed to do this:
> >>
> >> JSP
> >>
> >> <s:autocompleter theme="simple"
> >> list="state"
> name="StateName"/>
> >>
> >>
> >>
> >> Java:
> >>
> >> public class autocompleter extends ActionSupport
> >> {
> >> private List state;
> >> public String execute() throws Exception{
> >> state = new ArrayList();
> >> state.add("Bonn");
> >> state.add("Paris");
> >> .
> >> .
> >> .
> >>
> >> return SUCCESS;
> >> }
> >>
> >> public List getState(){
> >> return state;
> >> }
> >> }
> >>
> >> as you can see, the autocompliter is based on the
> >> 'state' I initially
> >> provided. But what if the list is huge???
> >>
> >> Q: How can I invoke an action once the user types
> a letter
> >> (str) and the
> >> string gets to the invoked-method (based on the
> str the
> >> method will invoke
> >> the appropriate list)
> >>
> >> thank you!!!
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/struts2%3A-how-to-read-the-%27potenrial-list%27-from-a-database-tp17810726p17810726.html
> >> Sent from the Struts - User mailing list archive
> at
> >> Nabble.com.
> >>
> >>
> >>
> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail:
> user-unsubscribe@struts.apache.org
> >> For additional commands, e-mail:
> >> user-help@struts.apache.org
> >
> >
> ---------------------------------------------------------------------
> > To unsubscribe, e-mail:
> user-unsubscribe@struts.apache.org
> > For additional commands, e-mail:
> user-help@struts.apache.org
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/struts2%3A-autocompleter---howto-read-the-%27potenrial-list%27-from-a-database-tp17810726p17820863.html
> Sent from the Struts - User mailing list archive at
> Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail:
> user-help@struts.apache.org
---------------------------------------------------------------------
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Re: struts2: how to read the 'potenrial list' from a database
Posted by srichin <sr...@infosys.com>.
I'm trying to use a autocompleter that is to be built from a list (of
objects).
I want the objects id to be the value of the option and code to bethe label
to be shown in the autocompleter dropdown options.
I should be shown codes as select options in the dropdown and when I select
any of the code, the corresponding id should go as the value that has been
selected
Pointers on this would be of great help
newton.dave wrote:
>
> Search a database of city names?
>
> I'm not sure what you're asking.
>
>
> --- On Thu, 6/12/08, xianwinwin <xi...@gmail.com> wrote:
>
>> From: xianwinwin <xi...@gmail.com>
>> Subject: struts2: how to read the 'potenrial list' from a database
>> To: user@struts.apache.org
>> Date: Thursday, June 12, 2008, 6:07 PM
>> I have a list of 20,000 cities; I would like the user to
>> provide at least 2
>> chars and then present him a'potential list'.
>>
>> I managed to do this:
>>
>> JSP
>>
>> <s:autocompleter theme="simple"
>> list="state" name="StateName"/>
>>
>>
>>
>> Java:
>>
>> public class autocompleter extends ActionSupport
>> {
>> private List state;
>> public String execute() throws Exception{
>> state = new ArrayList();
>> state.add("Bonn");
>> state.add("Paris");
>> .
>> .
>> .
>>
>> return SUCCESS;
>> }
>>
>> public List getState(){
>> return state;
>> }
>> }
>>
>> as you can see, the autocompliter is based on the
>> 'state' I initially
>> provided. But what if the list is huge???
>>
>> Q: How can I invoke an action once the user types a letter
>> (str) and the
>> string gets to the invoked-method (based on the str the
>> method will invoke
>> the appropriate list)
>>
>> thank you!!!
>> --
>> View this message in context:
>> http://www.nabble.com/struts2%3A-how-to-read-the-%27potenrial-list%27-from-a-database-tp17810726p17810726.html
>> Sent from the Struts - User mailing list archive at
>> Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail:
>> user-help@struts.apache.org
>
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Re: struts2: how to read the 'potenrial list' from a database
Posted by Dave Newton <ne...@yahoo.com>.
Search a database of city names?
I'm not sure what you're asking.
--- On Thu, 6/12/08, xianwinwin <xi...@gmail.com> wrote:
> From: xianwinwin <xi...@gmail.com>
> Subject: struts2: how to read the 'potenrial list' from a database
> To: user@struts.apache.org
> Date: Thursday, June 12, 2008, 6:07 PM
> I have a list of 20,000 cities; I would like the user to
> provide at least 2
> chars and then present him a'potential list'.
>
> I managed to do this:
>
> JSP
>
> <s:autocompleter theme="simple"
> list="state" name="StateName"/>
>
>
>
> Java:
>
> public class autocompleter extends ActionSupport
> {
> private List state;
> public String execute() throws Exception{
> state = new ArrayList();
> state.add("Bonn");
> state.add("Paris");
> .
> .
> .
>
> return SUCCESS;
> }
>
> public List getState(){
> return state;
> }
> }
>
> as you can see, the autocompliter is based on the
> 'state' I initially
> provided. But what if the list is huge???
>
> Q: How can I invoke an action once the user types a letter
> (str) and the
> string gets to the invoked-method (based on the str the
> method will invoke
> the appropriate list)
>
> thank you!!!
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> Nabble.com.
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