Yes, but the class with the static methods is still the starting
point. Replaceable classes with static methods were chosen for these
interfaces because they allow an implementation a lot more flexibility
in how things get implemented, including the use of inline methods, if
appropriate. So, the z/OS version of SysFileSystem would probably
have methods that looked like this:
bool SysFileSystem::searchFileName(const char *name, char *fullName)
{
return getInstance()->searchFileName(name, fullName);
}
Where the instance returned would be a subclass of your base virtual
class. Then this is a matter of just adjusting the build to pick up
your version of SysFileSystem rather than the base unix one.
Rick
On Mon, Aug 11, 2008 at 10:19 AM, David Crayford <[EMAIL PROTECTED]> wrote:
> That's an excellent idea! Are you suggesting implementing the delegate
> design pattern? In which case
> an abstract base class of pure virtual functions (Java interface) would
> be required or implementing
> z/OS platform code to the source tree.
>
> Rick McGuire wrote:
>> I think the approach here would be to have the SysFileSystem class
>> remain the interface between the portable code and the platform, and
>> have its method delegate to a specific pluggable instance.
>>
>> Rick
>>
>> On Mon, Aug 11, 2008 at 9:59 AM, David Crayford <[EMAIL PROTECTED]> wrote:
>>
>>> ooRexx seems to only handle one type of file system based on the
>>> platform. On my system (z/OS) there are different file systems depending
>>> on the runtime environment. We have a UNIX file system and a traditional
>>> mainframe filesystem using PDS data sets. There is also a UNIX like file
>>> system in CICS. The SysFileSystem class is static, what I really need is
>>> a SysFileSystem factory or different builds depending on where I
>>> want to deploy. Any suggestions? I'm jumping the gun here a bit as I'm
>>> only just starting to code in anger, but it's a concern...
>>>
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