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<hr><h1>class_registry.cpp</h1><a href="class__registry_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="class__registry_8h.html">nel/misc/class_registry.h</a>"</font>
00029 
00030 <font class="preprocessor">#include &lt;typeinfo&gt;</font>
00031 
00032 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00033 
00034 <font class="keyword">namespace </font>NLMISC
00035 {
00036 
00037 
00038 <font class="comment">// ======================================================================================================</font>
<a name="l00039"></a><a class="code" href="classNLMISC_1_1CClassRegistry.html#r0">00039</a> set&lt;CClassRegistry::CClassNode&gt;         *CClassRegistry::RegistredClasses = NULL;
00040 
00041 
00042 <font class="comment">// ======================================================================================================</font>
<a name="l00043"></a><a class="code" href="classNLMISC_1_1CClassRegistry.html#f0">00043</a> <font class="keywordtype">void</font>            CClassRegistry::init()
00044 {
00045         <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CClassRegistry.html#r0">RegistredClasses</a> == NULL)
00046                 <a class="code" href="classNLMISC_1_1CClassRegistry.html#r0">RegistredClasses</a> = <font class="keyword">new</font> set&lt;CClassRegistry::CClassNode&gt;();
00047 }
00048 
00049         
00050 <font class="comment">// ======================================================================================================</font>
<a name="l00051"></a><a class="code" href="classNLMISC_1_1CClassRegistry.html#d1">00051</a> IClassable      *CClassRegistry::create(<font class="keyword">const</font> string &amp;className)  <font class="keywordflow">throw</font>(ERegistry)
00052 {
00053         init();
00054 
00055         set&lt;CClassNode&gt;::iterator       it;
00056         CClassNode      node;
00057 
00058         node.ClassName= className;
00059         it=RegistredClasses-&gt;find(node);
00060 
00061         <font class="keywordflow">if</font>(it==RegistredClasses-&gt;end())
00062                 <font class="keywordflow">return</font> NULL;
00063         <font class="keywordflow">else</font>
00064         {
00065                 IClassable      *ptr;
00066                 ptr=it-&gt;Creator();
00067 <font class="preprocessor">                #ifdef NL_DEBUG</font>
00068 <font class="preprocessor"></font>                        <a class="code" href="debug_8h.html#a6">nlassert</a>(CClassRegistry::checkObject(ptr));
00069 <font class="preprocessor">                #endif</font>
00070 <font class="preprocessor"></font>                <font class="keywordflow">return</font> ptr;
00071         }
00072 
00073 }
00074 
00075 <font class="comment">// ======================================================================================================</font>
<a name="l00076"></a><a class="code" href="classNLMISC_1_1CClassRegistry.html#d0">00076</a> <font class="keywordtype">void</font>            CClassRegistry::registerClass(<font class="keyword">const</font> string &amp;className, IClassable* (*creator)(), <font class="keyword">const</font> string &amp;typeidCheck)  <font class="keywordflow">throw</font>(ERegistry)
00077 {
00078         init();
00079 
00080         CClassNode      node;
00081         node.ClassName= className;
00082         node.Creator=creator;
00083         node.TypeIdCheck= typeidCheck;
00084         <font class="keywordflow">if</font>(!RegistredClasses-&gt;insert(node).second)
00085         {
00086                 <a class="code" href="debug_8h.html#a12">nlstop</a>;
00087                 <font class="keywordflow">throw</font> ERegisteredClass();
00088         }
00089 }
00090 
00091 <font class="comment">// ======================================================================================================</font>
<a name="l00092"></a><a class="code" href="classNLMISC_1_1CClassRegistry.html#d2">00092</a> <font class="keywordtype">bool</font>            CClassRegistry::checkObject(IClassable* obj)
00093 {
00094         <a class="code" href="classNLMISC_1_1CClassRegistry.html#f0">init</a>();
00095 
00096         set&lt;CClassNode&gt;::iterator       it;
00097         CClassNode      node;
00098         node.ClassName= obj-&gt;getClassName();
00099 
00100         it=<a class="code" href="classNLMISC_1_1CClassRegistry.html#r0">RegistredClasses</a>-&gt;find(node);
00101         <font class="keywordflow">if</font>(it==<a class="code" href="classNLMISC_1_1CClassRegistry.html#r0">RegistredClasses</a>-&gt;end())
00102                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00103         node= *it;
00104 
00105         <font class="keywordflow">if</font>( node.TypeIdCheck != string(<font class="keyword">typeid</font>(*obj).name()) )
00106                 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00107 
00108         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00109 }
00110 
00111 
00112 
00113 }
00114 
</pre></div>

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