record components as a first class reflection element
Vicente Romero
vicente.romero at oracle.com
Tue Sep 24 20:47:34 UTC 2019
On 9/24/19 4:07 PM, Maurizio Cimadamore wrote:
> Question - should RecordComponent extend java.lang.reflect.Member
> (after all, it has a name and a type). Not 100% sure.
good question, I would say yes, we can say that record components are
members of the class, but I'm not 100% sure either
>
> Maurizio
Vicente
>
> On 24/09/2019 20:33, Alex Buckley wrote:
>> At first glance, this is sensible because of the first-class status
>> in the JLS of record components and their mapping to accessors.
>>
>> Based on a check of other implementations of AnnotatedElement,
>> consider `boolean isVarArgs()` (IIRC a varargs component will be
>> allowed) and `String toGenericString()`.
>>
>> Alex
>>
>> On 9/24/2019 12:05 PM, Vicente Romero wrote:
>>> Hi amber experts,
>>>
>>> We are considering our next move in the reflection area for records.
>>> It will be hoisting record components to a first class status in the
>>> reflection engine. Our current proposal is to define a new class
>>> named: java.lang.reflect.RecordComponent which will will be roughly
>>> defined as:
>>>
>>> public final class RecordComponent implements AnnotatedElement {
>>> private String name;
>>> private Class<?> type;
>>> private Method accessor;
>>>
>>> public String getName() { return name; }
>>>
>>> public Class<?> getType() { return type; }
>>>
>>> public Type getGenericType() {...}
>>>
>>> public AnnotatedType getAnnotatedType() {....}
>>>
>>> public Method getAccessor() { return accessor; }
>>> }
>>>
>>> Along with this change we are also proposing changes to
>>> java.lang.Class. Our proposal there is to remove current method:
>>> java.lang.Class::getRecordAccessors and add a new method named:
>>> java.lang.Class::getRecordComponents which will return a array of
>>> java.lang.reflect.RecordComponents. Thanks in advance for sharing
>>> any feedback on this proposal,
>>>
>>> Vicente
More information about the amber-spec-experts
mailing list