[jira] [Comment Edited] (TAP5-1213) ComponentResources should give access to generic parameters of bound types

["Lance (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAP5-1213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13996309#comment-13996309 ] 

Lance edited comment on TAP5-1213 at 5/13/14 12:09 PM:
-------------------------------------------------------

>From what I can see, this can be resolved by adding the following to the public API:

{code}
java.lang.reflect.Type PropertyConduit.getPropertyGenericType()
java.lang.reflect.Type Binding.getBindingGenericType()
java.lang.reflect.Type ComponentResources.getBoundGenericType(String parameterName)
{code}

I'm guessing that only PropBinding would return a type from getBindingGenericType(). All other bindings would return null.

I'm guessing that PropertyConduitSource will need to call Field.getGenericType() or Method.getGenericReturnType()
- http://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Field.html#getGenericType()
- http://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Method.html#getGenericReturnType()


was (Author: uklance):
>From what I can see, this can be resolved by adding the following to the public API:

{code}
java.lang.reflect.Type PropertyConduit.getPropertyGenericType()
java.lang.reflect.Type Binding.getBindingGenericType()
java.lang.reflect.Type ComponentResources.getBoundGenericType(String parameterName)
{code}

I'm guessing that only PropBinding would return a type from getBindingGenericType(). All other bindings would return null.

> ComponentResources should give access to generic parameters of bound types
> --------------------------------------------------------------------------
>
>                 Key: TAP5-1213
>                 URL: https://issues.apache.org/jira/browse/TAP5-1213
>             Project: Tapestry 5
>          Issue Type: Improvement
>          Components: tapestry-core
>    Affects Versions: 5.1.0.7
>            Reporter: Michael Wyraz
>              Labels: bulk-close-candidate
>
> ComponentResources can tell which type is bound to a given parameter via getBoundType(ParameterName). This is a great feature but only works for non-generic types. If a generic type is bound, it's impossible to access the generic parameters.
> Example:
> A component can bind to a Set of something. getBoundType returns "java.util.Set" for this parameter. So it' not possible to coerce the entries of this set to the target type.



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