API change request (RT-23413)

[Greg Brown]

Any comments on this?

On Jul 30, 2012, at 12:05 PM, Greg Brown wrote:

> After further discussion (see JIRA), I have revised the proposed API change for RT-23413:
> 
>  http://javafx-jira.kenai.com/browse/RT-23413
> 
> The previous proposal would have added a new boolean property to FXMLLoader called "clearImportsOnLoad"; however, this would have required a caller to both set this flag and set the document root to null before each call to load(), which is not very intuitive.
> 
> The revised proposal adds a "template" flag to FXMLLoader. Setting this flag to true indicates that the loader will be used as a template for producing multiple instances of a single object hierarchy. When this flag is set to false (the default), FXMLLoader#load() will behave as currently implemented. When true, FXMLLoader#load() will: 
> 
> a) clear the root value by calling setRoot(null) 
> b) not clear any existing imports 
> 
> This helps improve performance on subsequent loads since the overhead of loading the classes referred to by the document is eliminated.
> 
> Greg
> 
> On Jul 20, 2012, at 3:03 PM, Greg Brown wrote:
> 
>> Good point. Thanks!
>> 
>> On Jul 20, 2012, at 2:59 PM, Daniel Fuchs wrote:
>> 
>>> Hi,
>>> 
>>> Whatever option you choose, I think you need to clear the imports if the ClassLoader changes.
>>> Otherwise you might use the class that was returned by the previous ClassLoader, which would be
>>> bad.
>>> Also you probably need to specify what happens if the default class loader is changed. Does that
>>> affect existing FXMLLoader instances? I guess not...
>>> "Sets the default ClassLoader" is maybe a bit too concise ;-)
>>> 
>>> best regards,
>>> 
>>> -- daniel
>> 
>