Pat Lightbody wrote:
I'm turning off the jira notifications to the list... I just CANT keep up with all this traffic, and these notifications aren't helping, especially once this stuff starts (people commenting on issues on the list).
----- Original Message ----- From: "Cameron Braid" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, August 26, 2003 10:18 AM Subject: RE: [OS-webwork] [JIRA-OS] Commented: (WW-271) Converter framework needs to be able to support plugable to String converters
I still think that the ability to use an API to register converters is really handy - especially when adapting an existing model.
Cheers,
Cameron
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jason Carreira Sent: Wednesday, 27 August 2003 3:07 AM To: [EMAIL PROTECTED] Subject: RE: [OS-webwork] [JIRA-OS] Commented: (WW-271) Converter framework needs to be able to support plugable to String converters
Wouldn't it be better to have this properties file driven, like it is now? Just add the ability to have converters both from AND to String?
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 26, 2003 11:50 AM To: [EMAIL PROTECTED] Subject: [OS-webwork] [JIRA-OS] Commented: (WW-271) Converter framework needs to be able to support plugable to String converters
The following comment has been added to this issue:
Author: Cameron Braid Created: Tue, 26 Aug 2003 10:48 AM Body: I forgot to mention that it would also be a good idea to provide a public API to allow programatic registration of converters. (both toString and fromString)
An example of this need is :
Currently, we use Hibernate with PersistentStringEnums. We already have a list of these Class objects. We have a PersistentStringEnumConverter that we use for all of our enums, therefore it would be better if we could iterate over this list, registering our PersistentStringEnumConverter for the PersistentStringEnum classes.
Something like
ConverterManager.getInstance().registerToStringConverter(Conve rter converterInstance, Class fromClass) ConverterManager.getInstance().registerFromStringConverter(Con verter converterInstance, Class toClass)
I would think that the Converter interface is quite simple :
public Object convert(Object, Class toClass)
In the case of a 1:1 mapping from types to converters, the toClass isn't needed, though if you have a converted that handles multiple classes, it is needed.
--------------------------------------------------------------------- View the issue:
http://jira.opensymphony.com/secure/ViewIssue.jspa?key=WW-271
Here is an overview of the issue: --------------------------------------------------------------------- Key: WW-271 Summary: Converter framework needs to be able to support plugable to String converters Type: Improvement
Status: Assigned Priority: Major
Project: WebWork Components: Views
Assignee: Patrick Lightbody Reporter: Cameron Braid
Created: Tue, 26 Aug 2003 10:03 AM Updated: Tue, 26 Aug 2003 10:03 AM
Description: Currently they conversion framework allows for plugable converters that are used when converting http request string values into the action properties.
This works really well.
However, when converting action properties to strings the vm macros use toString().
I believe that this system needs to be configurable. Allowing user defined converter classes to be specified for converting to string.
I also propose that a public API be created to allow reuse of the converters within actions and views.
i.e. a custom form that posts to an action. The action doesn't use the params-interceptor because the number of form fields are determined at runtime. The action processes the http request itself, calling
CustomClass cc = (CustomClass)ConverterManager.getInstance().convertFromString( requestMap.get("thingy"), CustomClass.class);
AND
in a velocity view. Put the ConverterManager instance as into the velo context as $converterManager
#foreach $item in $items <input type='text' value='${stringUtil.toHtml(converterManager.convertToString($item))}'> #end
Some reasons for having this feature :
a) most of the custom types in our applications use interfaces, with dynamic proxies. I wish to not rely on toString()
b) allows customization of default date formatting, numeric formatting, etc..
ALSO :
As demonstrated above, there exists a need to a stringUtil class to escape HTML.
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