enum option

[houyunf]

It will be very helpful to provide enum option support and should not be hard to implement.

[lexicalscope]

Can you possibly elaborate on this please? I was under the impression
that enum options are already supported. Are they not working?

[lexicalscope]

I believe that enum options should work and hopefully have been available for some time. Here is an example of how to use them (NB. in this example both options are optional, but it will work just as well for mandatory options):

    public class TestEnumOptionExample {
        public enum ExampleEnum {
            Value1, Value2, Value3
        }

        interface EnumOptionExample
        {
            @Option 
            ExampleEnum getOptionOne();
            boolean isOptionOne();

            @Option 
            List<ExampleEnum> getOptionTwo();
            boolean isOptionTwo();
        }

        @Test public void specifiedSingleValueEnumOptionGivesEnumValue() {
            final EnumOptionExample cli =
                CliFactory.parseArguments(EnumOptionExample.class, "--optionOne", "Value2");

            assertThat(cli.getOptionOne(), equalTo(ExampleEnum.Value2));
        }

        @Test public void specifiedMultivaluedEnumOptionGivesListOfEnumValues() {
            final EnumOptionExample cli =
                CliFactory.parseArguments(EnumOptionExample.class, "--optionTwo", "Value1", "Value3");

            assertThat(cli.getOptionTwo(), hasItems(ExampleEnum.Value1, ExampleEnum.Value3));
        }
    }