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From Jason Johnston <jason.johns...@Intrado.com>
Subject Re: [Forms] Protected methods in o.a.c.forms.datatype.typeimpl.AbstractDatatype
Date Mon, 18 Jul 2005 20:56:36 GMT
On Fri, 2005-07-15 at 17:29 +0200, Ugo Cei wrote:
> 
> those methods are inherited from AbstractDatatype, where they are 
> declared as "protected". Thus, I was painfully reminded that protected 
> members in Java are visible not only to subclasses, but to all other 
> classes in the same package as well! As long as StringTypeBuilder is in 
> the same package as AbstractDatatype, all is well, but as soon as I 
> copy it to com.example.mypackage.MyTypeBuilder, it doesn't compile 
> anymore.

I think this might be a good opportunity to bring up again a similar
problem with creating jxpath bindings outside the o.a.c.forms.binding
package.  I had posted this problem on this list several months ago with
no reply.  Here is the message again:

> On Tue, 2005-01-04 at 14:43 -0700, Jason Johnston wrote:
> Hi folks-- I'm trying to create a custom binding by extending
> JXPathBindingBase and JXPathBindingBuilderBase for the binding and
> binding builder respectively.  My classes, of course, live in a
> different package than o.a.c.forms.binding.
> 
> My builder class is able to access the protected inner class
> JXPathBindingBuilderBase.CommonAttributes just fine, because it is a
> direct subclass of JXPathBindingBuilderBase.  But the binding class
> fails because it also needs access to CommonAttributes (see the
> JXPathBindingBase constructor), but neither extends nor resides in the
> same package as JXPathBindingBuilderBase so CommonAttributes is not
> visible.
> 
> Anyone know of a reason why CommonAttributes is protected rather than
> public?  Any objections to making it public?

It's not the exact same problem as Ugo is describing but the end effect
is the same... it is impossible to create a custom CForms component in a
package other than o.a.c.forms.

Perhaps both Ugo's issue and mine could be fixed at the same time.
--Jason

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