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http://www.stripesframework.org/jira/browse/STS-297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=11620#action_11620
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Evgeny Shepelyuk commented on STS-297:
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It also can be useful to make TypeConverters aware of action bean or actino
bean context or any class that can provide access to request/response/servlet
context.
For example i need to convert some string to integer depeding on user settings
(e.g. from cookies), user input can be inches/foots/millimetres/metres etc.
And having access to servlet context from custom type converter can be very
helpful in this case.
> A mechanism to pass parameters to TypeConverters
> ------------------------------------------------
>
> Key: STS-297
> URL: http://www.stripesframework.org/jira/browse/STS-297
> Project: Stripes
> Issue Type: New Feature
> Components: Validation
> Reporter: Andy
>
> The canonical example is the ability to have a BigDecimal type converter that
> will automatically truncate the number down to the required scale. For
> example, you might want to be able to write something like:
> @Validate(converterpara...@param(name="scale" value="2") BigDecimal
> dollarAmount;
> @Validate(converterpara...@param(name="scale" value="0") BigDecimal
> liraAmount;
> I don't particularly like the syntax that I've written above, but it would
> need to be something flexible since each converter make take a different set
> of parameters. Also, might need to deal with type issues - the parameter
> above is obviously a number but the value is expressed as a string. Perhaps
> it could work with:
> @Param(name="foo", [numValue=N|stringValue="N"|etc.]?
> Also would need to figure out how to make the type converter aware of these
> parameters. Do we try to inject them using setters? Or just pass across a
> map of key/value pairs?
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