BundleStringResourceLoader is not used by most Wicket applications. It
is an alternative implementation of the IStringResourceLoader interface
that people can use when they wish to load resources from an existing
resource bundle that is not structured along the lines of Wicket
components. The default resource loader is ComponentStrngResourceLoader
and this uses the resource loader functionality within Wicket. It should
therefore be posible to modify this to check if the resource bundle has
changed and reload as necessary. (ApplicationStrngResourceLoader is
another alternative strategy and this also uses the Wicket resource
loading functionality)
However (and this is important), the resource loader implementations are
highly optimised for performance because of the inherent overhead in
loading and referencing text in resource bundles. In particular they
cache all of the resources in memory. I would therefore suggest the
following:
- Checking for changed resource files should be a development time
option only. It should not be used in production environments
- However we implement it, we don't check for changed properties files
on every lookup as this would kill even a simple localized application.
Instead, we should probably maintain some sort of cache of last modified
and last checked times for each file and only check for file changes
every minute or so.
regards,
Chris
Johan Compagner wrote:
that would be pretty hard to do i think.
Because i think we are talking about the BundleStringResourceLoader?
and then this:
final ResourceBundle bundle = ResourceBundle.getBundle(bundleName,
locale);
return bundle.getString(key);
ResourceBundle will cache the resources and reloading them is as far
as i know not possible now
(i thought they said that they will introduce this in the next java
version)
johan
Cameron Braid wrote:
It would be great if wicket could reload resource bundles, using a
similar strategy to the markup reloading.
Would this be hard to do ?
I often find that I forget to add a property to the resource bundle –
causing me to have to restart the app to pickup the changes.
Cameron
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