Hi Patrick,
Well, Enums have only existed for about 3 or 4 years, so 60-70% of that
silence is understandable. =)
I want to get my hands on a specific Enum value. valueOf() is just a way
to look up an Enum by its string name, I was hoping that might already be
exposed in the API by existing methods.
Experimenting again, it looks like the following actually works:
------------------------
use Inline (Java => "STUDY",
CLASSPATH => "foo.jar",
AUTOSTUDY => 1,
STUDY=> ["com.my.company.TokenFSM\$TokenType"],
JNI=>1);
print com::my::company::TokenFSM::TokenType->valueOf("APOS");
------------------------
That prints:
main::com::my::company::TokenFSM::TokenType=HASH(0x1030567c0)
And I can call methods of that object (like ordinal(), name(), etc.), so
I'm happy. =)
--
Ken Williams
Senior Research Scientist
Thomson Reuters
http://labs.thomsonreuters.com
On 8/19/11 8:03 AM, "Patrick LeBoutillier"
<[email protected]> wrote:
>Ken,
>
>Enums might be tricky... I believe this is the first question I've had
>about them in over 10 years.
>What are you expecting "valueOf" to return?
>
>Patrick
>
>
>On Thu, Aug 18, 2011 at 5:41 PM, <[email protected]> wrote:
>> I've got a class like so:
>>
>> ----------------
>> package com.my.company;
>> public class TokenFSM {
>> public static enum TokenType {
>> ALPHAID,
>> APOS
>> }
>> }
>> ----------------
>>
>> I'd like to access various enum constants from Perl code, something like
>> the following (which doesn't work):
>>
>>
>> ----------------
>> use Inline (Java => "STUDY",
>> CLASSPATH => "foo.jar",
>> AUTOSTUDY => 1,
>> STUDY=> ["com.my.company.TokenFSM"],
>> JNI=>1);
>> print $com::my::company::TokenFSM::TokenType->valueOf("APOS");
>> ----------------
>>
>> That dies with: Can't call method "valueOf" on an undefined value at
>>-e
>> line 1.
>>
>>
>> Anyone have better fu with this?
>>
>> -Ken
>>
>>
>
>
>
>--
>=====================
>Patrick LeBoutillier
>Rosemère, Québec, Canada
