static variables in actions

["Menke, John" <Jo...@acs-inc.com>]

if I have a collection of state names and I don't want to have to retrieve
it over and over again can i
do something like this in my action?


static Collection _collection;

if (collection == null ){
   _collection = getCollectionFromDB();
}

form.setCollection = _collection









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RE: static variables in actions

[Nicolás de Amorrortu <na...@interbanking.com.ar>]

You can also try the Providers Framework that we have posted to the
sourceforge (http://providers.sourceforge.net).
It was developed to solve the problem that you described. With this
framework you define your collections on a XML file, and then you can
use it through select tag (of struts) using de "optionsTag" provided
with the framework.
The collections could be defined to be retrieved from DataSource or
Fixed Collections.
The DataSource definition is something like ...
 	<provider name="cities" 
		className="ar.com.koalas.providers.JDBCProvider">
		<set-property property="jndi" value="MySqlDS"/>
		<set-property property="keyName" value="code"/>
		<set-property property="description"
value="description"/>
		<param>
			<param-name>query</param-name>
			<param-value>select * from cities</param-value>
		</param>
	</provider>

Then in your JSP you use this collection (named 'cities') like this
<select name="selTest">
	<prv:options provider="cities"/>
</select>

Cheers,
Nicolás


-----Original Message-----
From: Robert Taylor [mailto:rtaylor@mulework.com] 
Sent: Martes, 03 de Febrero de 2004 11:40 a.m.
To: Struts Users Mailing List
Subject: RE: static variables in actions


John, why not retrieve these from the DB at application start up time
and place them in the ServletContext where they are accessible for the
life time of the application and easily rendered by JSTL or Struts tags.

robert

> -----Original Message-----
> From: Menke, John [mailto:John.Menke@acs-inc.com]
> Sent: Tuesday, February 03, 2004 9:36 AM
> To: Struts (E-mail)
> Subject: static variables in actions
>
>
> if I have a collection of state names and I don't want to have to 
> retrieve it over and over again can i do something like this in my 
> action?
>
>
> static Collection _collection;
>
> if (collection == null ){
>    _collection = getCollectionFromDB();
> }
>
> form.setCollection = _collection
>
>
>
>
>
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>


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RE: static variables in actions

[Robert Taylor <rt...@mulework.com>]

John, why not retrieve these from the DB at application start up time
and place them in the ServletContext where they are accessible for
the life time of the application and easily rendered by JSTL or Struts
tags.

robert

> -----Original Message-----
> From: Menke, John [mailto:John.Menke@acs-inc.com]
> Sent: Tuesday, February 03, 2004 9:36 AM
> To: Struts (E-mail)
> Subject: static variables in actions
>
>
> if I have a collection of state names and I don't want to have to retrieve
> it over and over again can i
> do something like this in my action?
>
>
> static Collection _collection;
>
> if (collection == null ){
>    _collection = getCollectionFromDB();
> }
>
> form.setCollection = _collection
>
>
>
>
>
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: struts-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: struts-user-help@jakarta.apache.org
>


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