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<p class=MsoNormal><span style='color:#1F497D'>Hi Dan,<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>The enumeration
FdoICapabilityType represents a snapshot of all capabilities that are supported
at the time it is implemented. It lists capability identifiers for each of the
supported capabilities that can be used and provides an easy access to the
identifier list. Those identifiers are necessary to retrieve a capability
value. The identifiers will also be documented where the description also
includes the return type of the capability. All this information is required by
the user to select the correct interface to retrieve a capability value.
Theoretically, we can even go ahead and remove the enumeration, it would not
make a difference. <o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>If a new capability is added,
that capability together with its return type would need to be documented with
all other capability identifiers to ensure that a provider wanting to support
it has all the information to access it. Again, there is no need to add it to the
enumeration (assuming we keep it around). We may decide to update the
enumeration if we do a update to the FDO core that results in a version upgrade
to reflect the snapshot of the capabilities available at that time.<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Thomas<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span style='font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-family:"Tahoma","sans-serif"'>
fdo-internals-bounces@lists.osgeo.org
[mailto:fdo-internals-bounces@lists.osgeo.org] <b>On Behalf Of </b>Dan Stoica<br>
<b>Sent:</b> Thursday, July 10, 2008 12:11 PM<br>
<b>To:</b> FDO Internals Mail List<br>
<b>Subject:</b> RE: [fdo-internals] RFC 20 for review<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thomas,<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If that Int32 is not an </span><i><span style='color:#1F497D'>FdoCapabilityType
&#8211; </span></i><span style='font-size:12.0pt;color:#1F497D'>then what is
it?</span><span style='font-size:12.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dan.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span style='font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-family:"Tahoma","sans-serif"'>
fdo-internals-bounces@lists.osgeo.org
[mailto:fdo-internals-bounces@lists.osgeo.org] <b>On Behalf Of </b>Thomas
Knoell<br>
<b>Sent:</b> Thursday, July 10, 2008 12:02 PM<br>
<b>To:</b> FDO Internals Mail List<br>
<b>Subject:</b> RE: [fdo-internals] RFC 20 for review<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><span style='color:#1F497D'>Hi Dan,<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Adding a new capability does not
require an update of the enumeration <i>FdoCapabilityType.h</i>. If you look at
the interfaces, you see that a capability is identified by an Int32 number, not
by a parameter of the enumeration type. So you can add new capabilities without
changing the FDO version.<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'>Thomas<o:p></o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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<p class=MsoNormal><b><span style='font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-family:"Tahoma","sans-serif"'>
fdo-internals-bounces@lists.osgeo.org
[mailto:fdo-internals-bounces@lists.osgeo.org] <b>On Behalf Of </b>Dan Stoica<br>
<b>Sent:</b> Thursday, July 10, 2008 11:42 AM<br>
<b>To:</b> FDO Internals Mail List<br>
<b>Subject:</b> RE: [fdo-internals] RFC 20 for review<o:p></o:p></span></p>

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<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>&#8220;</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#993366'>The new API would not require the a FDO version upgrade&#8221;<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#993366'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>Depends. Unless the new enum is added at the end of </span><i><span
lang=EN style='font-family:"Verdana","sans-serif";color:black'>FdoCapabilityType</span></i><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:black'>.<i>h</i>
you have to rebuild your application. And this accounts for a version upgrade.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>BTW, I think the opposite: the capabilities belong to the
providers. Because &#8220;capabilities&#8221; is another way to talk about
&#8220;limitations&#8221; which are provider specific.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:black'>Dan.<o:p></o:p></span></p>

<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p>&nbsp;</o:p></span></p>

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