It is about type safety more than anything else, meaning you can't possibly pass an invalid value. One could also say it is the "proper" implementation of enumerations in Java 5+, but I prefer the first argument.
If we choose enums, we can split header and parameter names, for example, in types like <ComponentPrefix>Headers <ComponentPrefix>Params (e.g: FreemarkerHeaders and FreemarkerParams) instead of having to diff them in classes/interfaces w/ prefixes like HEADER_ and PARAM_ -- I like this. What do you guys think? On Tue, May 24, 2011 at 5:28 AM, Willem Jiang <willem.ji...@gmail.com>wrote: > If we are using enums, what kind of benefit can we get compare to use class > or interface ? > > +1 to align this. > > Willem > > > On 5/24/11 1:08 AM, Fernando Ribeiro wrote: > >> Claus, anyone? >> >> On Tue, May 17, 2011 at 4:35 PM, Fernando Ribeiro< >> webmas...@fernandoribeiro.eti.br> wrote: >> >> Me neither, but agree we should align this, may also use enums, as JDK >>> 1.4 >>> was already dropped, what do you think, everybody? >>> >>> On Tue, May 17, 2011 at 4:30 PM, Christian Müller< >>> christian.muel...@gmail.com> wrote: >>> >>> We have classes and interfaces, e.g.: >>>> >>>> interface --> org.apache.camel.component.cxf.CxfConstants >>>> class --> org.apache.camel.component.jms.JmsConstants >>>> >>>> We should align this. At present, I don't have any preferences. >>>> >>>> Christian >>>> >>>> On Mon, May 16, 2011 at 11:20 PM, Fernando Ribeiro< >>>> webmas...@fernandoribeiro.eti.br> wrote: >>>> >>>> Any feedback yet? Thanks. >>>>> >>>>> On Fri, May 13, 2011 at 3:53 PM, Fernando Ribeiro< >>>>> webmas...@fernandoribeiro.eti.br> wrote: >>>>> >>>>> All, >>>>>> >>>>>> Is there any agreement here about whether we use interfaces, classes >>>>>> >>>>> or >>>> >>>>> enums for constants? If so, are there naming conventions that we use >>>>>> >>>>> or >>>> >>>>> would like to use going forward? >>>>>> >>>>>> Thanks, >>>>>> >>>>>> Fernando >>>>>> >>>>>> >>>>> >>>> >>> >>> >> > > -- > Willem > ---------------------------------- > FuseSource > Web: http://www.fusesource.com > Blog: http://willemjiang.blogspot.com (English) > http://jnn.javaeye.com (Chinese) > Twitter: willemjiang > > Connect at CamelOne May 24-26 > The Open Source Integration Conference > http://camelone.com >
