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<head>
<title>EOGlobalID</title>
</head>
<body>
<font face="serif">
<a href="EOControl.html">Up</a>
<br />
<h1><a name="title$EOGlobalID">EOGlobalID</a></h1>
<h3>Authors</h3>
<dl>
<dt>Mirko Viviani (<a href="mailto:mirko.viviani@gmail.com"><code>mirko.viviani@gmail.com</code></a>)</dt>
<dd>
</dd>
</dl>
<p><b>Version:</b> 27724</p>
<p><b>Date:</b> 2009-01-29 23:34:41 +0100 (Don, 29. Jän 2009)</p>
<blockquote>
</blockquote>
<p><b>Copyright:</b> (C)
2000-2002,2003,2004,2005 Free Software
Foundation, Inc.
</p>
<div>
<hr width="50%" align="left" />
<h3>Contents -</h3>
<ol>
<li>
<a href="#001000000000">Software documentation for the EOGlobalID class</a>
</li>
<li>
<a href="#002000000000">Software documentation for the EOTemporaryGlobalID
class</a>
</li>
<li>
<a href="#003000000000">EOGlobalID variables</a>
</li>
</ol>
<hr width="50%" align="left" />
</div>
<h1><a name="001000000000">
Software documentation for the EOGlobalID class
</a></h1>
<h2><a name="class$EOGlobalID">EOGlobalID</a> : NSObject</h2>
<blockquote class="declared">
<dl>
<dt><b>Declared in:</b></dt>
<dd>EOControl/EOGlobalID.h</dd>
</dl>
</blockquote>
<blockquote>
<dl>
<dt><b>Conforms to:</b></dt>
<dd>NSCopying</dd>
</dl>
</blockquote>
<div class="desc">
<em>Description forthcoming.</em>
</div>
<b>Method summary</b>
<ul>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOGlobalID-hash">-hash</a></li>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOGlobalID-isEqual$">-isEqual:</a></li>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOGlobalID-isTemporary">-isTemporary</a></li>
</ul>
<hr width="50%" align="left" />
<div class="method">
<h3><a name="method$EOGlobalID-hash">hash </a></h3>
- (unsigned) <b>hash</b>;<br />
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$EOGlobalID-isEqual$">isEqual: </a></h3>
- (BOOL) <b>isEqual:</b> (id)other;<br />
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$EOGlobalID-isTemporary">isTemporary </a></h3>
- (BOOL) <b>isTemporary</b>;<br />
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="25%" align="left" />
</div>
<h1><a name="002000000000">
Software documentation for the EOTemporaryGlobalID
class
</a></h1>
<h2><a name="class$EOTemporaryGlobalID">EOTemporaryGlobalID</a> : <a rel="gsdoc" href="#class$EOGlobalID">EOGlobalID</a></h2>
<blockquote class="declared">
<dl>
<dt><b>Declared in:</b></dt>
<dd>EOControl/EOGlobalID.h</dd>
</dl>
</blockquote>
<blockquote>
<dl>
<dt><b>Conforms to:</b></dt>
<dd>NSCoding</dd>
</dl>
</blockquote>
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="50%" align="left" />
<a href="#_EOTemporaryGlobalID_ivars">Instance Variables</a>
<br/><br/>
<b>Method summary</b>
<ul>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOTemporaryGlobalID+assignGloballyUniqueBytes$">+assignGloballyUniqueBytes:</a></li>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOTemporaryGlobalID+temporaryGlobalID">+temporaryGlobalID</a></li>
<li><a rel="gsdoc" href="EOGlobalID.html#method$EOTemporaryGlobalID-isTemporary">-isTemporary</a></li>
</ul>
<hr width="50%" align="left" />
<div class="method">
<h3><a name="method$EOTemporaryGlobalID+assignGloballyUniqueBytes$">assignGloballyUniqueBytes: </a></h3>
+ (void) <b>assignGloballyUniqueBytes:</b> (unsigned char*)buffer;<br />
<div class="desc">
Fills the supplied <var>buffer</var> with 12 bytes
that are unique to the subnet. The first two bytes
encode a sequence of the process. Then two bytes
encode the process ID followed by four bytes which
encode a time stamp. The last four bytes encode the
IP address. The caller must insure that the
<var>buffer</var> pointed to is large enough to hold
the twelve bytes.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$EOTemporaryGlobalID+temporaryGlobalID">temporaryGlobalID </a></h3>
+ (<a rel="gsdoc" href="#class$EOTemporaryGlobalID">EOTemporaryGlobalID</a>*) <b>temporaryGlobalID</b>;<br />
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$EOTemporaryGlobalID-isTemporary">isTemporary </a></h3>
- (BOOL) <b>isTemporary</b>;<br />
<div class="desc">
<em>Description forthcoming.</em>
</div>
<hr width="25%" align="left" />
</div>
<a name="_EOTemporaryGlobalID_ivars"/> <br/><hr width="50%" align="left" />
<h2>Instance Variables for EOTemporaryGlobalID Class</h2>
<h3><a name="ivariable$EOTemporaryGlobalID*_bytes">_bytes</a></h3>
@protected unsigned char <b>_bytes</b>;<br />
<div class="desc">
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</div>
<hr width="25%" align="left" />
<h3><a name="ivariable$EOTemporaryGlobalID*_refCount">_refCount</a></h3>
@protected unsigned int <b>_refCount</b>;<br />
<div class="desc">
<em>Warning</em> the underscore at the start of the
name of this instance variable indicates that, even
though it is not technically <em>private</em>, it is
intended for internal use within the package, and
you should not use the variable in other code.
</div>
<hr width="25%" align="left" />
<br/><hr width="50%" align="left" /><br/>
<h1><a name="003000000000">EOGlobalID variables</a></h1>
<p>
</p>
<h3><a name="variable$EOGlobalIDChangedNotification">EOGlobalIDChangedNotification</a></h3>
NSString* EOGlobalIDChangedNotification;<br />
<div class="desc">
This notification is intended to allow
EOTemporaryGlobalIDs to be replaced with
the corresponding EOKeyGlobalIDs. In theory one could
interpret this as a mechanism to allow primary key
attributes to be mutable class properties. Even
though EOF also posts this notification in that case,
it fails to consistently propagate the new value through
relationships. GDL2 may attempt to correct
that shortcoming in the future, but it may have serious
performance implications.
</div>
<hr width="25%" align="left" />
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