Templates for Design Patterns

Rasmus Kaae

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31 Jan 2006CPOL4 min read

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A fly weight implementation of a C++ template library for applying Design Patterns easily in any application.

design_patterns_templates-0_2.zip

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<title>Templated design pattern implementation for C++: template_patterns::singleton&lt; T &gt; Class Template Reference</title>
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<a class="el" href="namespacetemplate__patterns.html">template_patterns</a>::<a class="el" href="classtemplate__patterns_1_1singleton.html">singleton</a></div>
<h1>template_patterns::singleton&lt; T &gt; Class Template Reference</h1>Singleton template class.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="singleton_8h-source.html">singleton.h</a>&gt;</code>
<p>
<a href="classtemplate__patterns_1_1singleton-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">T &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtemplate__patterns_1_1singleton.html#a0">instance</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Retrieve the instance.  <a href="#a0"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">T &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtemplate__patterns_1_1singleton.html#a1">operator *</a> ()</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Retrieve the instance.  <a href="#a1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">const &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classtemplate__patterns_1_1singleton.html#a2">operator *</a> () const </td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Retrieve the const instance.  <a href="#a2"></a><br></td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
<h3>template&lt;class T&gt;<br>
 class template_patterns::singleton&lt; T &gt;</h3>

Singleton template class. 
<p>
The singleton creates a singleton instance from a given class, T, and allows it to be reached globally and uniquely within the application. Say you have class C and want to turn it into a singleton, simply add the following code: <em>typedef singleton&lt;C&gt; c_singleton;</em>. Whenever you need to hook up with the singleton just write <em>c_singleton.instance().my_function(params);</em>. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>T</em>&nbsp;</td><td>class to allow singleton behaviour </td></tr>
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</dl>

<p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a0" doxytag="template_patterns::singleton::instance"></a><p>
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template&lt;class T&gt; </td>
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          <td class="md" nowrap valign="top">T&amp; <a class="el" href="classtemplate__patterns_1_1singleton.html">template_patterns::singleton</a>&lt; T &gt;::instance           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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Retrieve the instance. 
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<dl compact><dt><b>Returns:</b></dt><dd>the instance of type T </dd></dl>
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<a class="anchor" name="a2" doxytag="template_patterns::singleton::operator *"></a><p>
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template&lt;class T&gt; </td>
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          <td class="md" nowrap valign="top">const&amp; <a class="el" href="classtemplate__patterns_1_1singleton.html">template_patterns::singleton</a>&lt; T &gt;::operator *           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
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          <td class="md" nowrap> const<code> [inline]</code></td>
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Retrieve the const instance. 
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<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classtemplate__patterns_1_1singleton.html#a0">instance</a> </dd></dl>
<dl compact><dt><b>Returns:</b></dt><dd>the const instance of type T </dd></dl>
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<a class="anchor" name="a1" doxytag="template_patterns::singleton::operator *"></a><p>
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template&lt;class T&gt; </td>
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          <td class="md" nowrap valign="top">T&amp; <a class="el" href="classtemplate__patterns_1_1singleton.html">template_patterns::singleton</a>&lt; T &gt;::operator *           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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Retrieve the instance. 
<p>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="classtemplate__patterns_1_1singleton.html#a0">instance</a> </dd></dl>
<dl compact><dt><b>Returns:</b></dt><dd>the instance of type T </dd></dl>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="singleton_8h-source.html">singleton.h</a></ul>
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