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<h2><a href="https://wiki.asterisk.org/wiki/display/TOP/Component+Base+Class">Component Base Class</a></h2>
<h4>Page <b>added</b> by <a href="https://wiki.asterisk.org/wiki/display/~beagles">Brent Eagles</a>
</h4>
<br/>
<div class="notificationGreySide">
<div class='panelMacro'><table class='warningMacro'><colgroup><col width='24'><col></colgroup><tr><td valign='top'><img src="/wiki/images/icons/emoticons/forbidden.gif" width="16" height="16" align="absmiddle" alt="" border="0"></td><td>scribbling/in progress</td></tr></table></div>
<h1><a name="ComponentBaseClass-Slidesuggestions%2Fmockup"></a>Slide suggestions/mockup </h1>
<p><font color="white"><br/>
<div class="panel" style="background-color: #7788FF;border-width: 1px;"><div class="panelHeader" style="border-bottom-width: 1px;background-color: #2022FF;"><b>Component Base Class</b></div><div class="panelContent" style="background-color: #7788FF;">
<ul>
<li>Rationale
<ul>
<li>Components share a common start up and shutdown pattern.</li>
<li>Consistency across components is difficult to maintain, especially when changes to location, replication, etc. occur.</li>
</ul>
</li>
<li>Significance
<ul>
<li>Encapsulates most of the Ice related "boilerplate code" for Icebox services.</li>
<li>Concrete instance of proper start up and shut down protocol.</li>
<li>Provides some default implementation.</li>
</ul>
</li>
</ul>
</div></div></font><br/>
<font color="white"></font></p>
<div class="panel" style="background-color: #7788FF;border-width: 1px;"><div class="panelHeader" style="border-bottom-width: 1px;background-color: #2022FF;"><b>Component Base Class - Features</b></div><div class="panelContent" style="background-color: #7788FF;">
<ul>
<li>Features
<ul>
<li>Simplifies construction and activation of main objects</li>
<li>Simplifies registration of services with the service locator.</li>
</ul>
</li>
</ul>
</div></div>
<p><font color="white"></font></p>
<div class="panel" style="background-color: #7788FF;border-width: 1px;"><div class="panelHeader" style="border-bottom-width: 1px;background-color: #2022FF;"><b>Component Base Class - Anatomy (1/2)</b></div><div class="panelContent" style="background-color: #7788FF;">
<ul>
<li>Location</li>
<li>Method groups
<ul>
<li>initialization</li>
<li>service registration</li>
<li>replication support</li>
<li>shutdown and cleanup</li>
</ul>
</li>
</ul>
</div></div>
<p><font color="white"></font></p>
<div class="panel" style="background-color: #7788FF;border-width: 1px;"><div class="panelHeader" style="border-bottom-width: 1px;background-color: #2022FF;"><b>Component Base Class - Anatomy (2/2)</b></div><div class="panelContent" style="background-color: #7788FF;">
<ul>
<li>Default implementations
<ul>
<li>code snippet for setting up proxies to the locator service.</li>
</ul>
</li>
<li>Abstract (pure virtual) methods.
<ul>
<li>createPrimaryServices()</li>
</ul>
</li>
</ul>
</div></div>
<h1><a name="ComponentBaseClass-Notes"></a>Notes</h1>
<h2><a name="ComponentBaseClass-Rationale"></a>Rationale</h2>
<p>Components share a common start up and shutdown pattern. </p>
<p>Consistency across components is difficult to maintain, especially when changes to location, replication, etc. occur.</p>
<h2><a name="ComponentBaseClass-Significance"></a>Significance</h2>
<p>Encapsulates most of the Ice related "boilerplate code" for Icebox services. Allowing the developer to get to the actual coding of the component sooner.</p>
<p>Concrete instance of proper start up and shut down protocol.</p>
<h2><a name="ComponentBaseClass-Features"></a>Features</h2>
<p>After building several components, it was apparent that we needed a way to get some consistency in the component initialization code. Since all of the components should perform the same operations, pretty clear patterns emerged and were encapsulated in the <b>Component Base Class</b>. In most cases, each Asterisk SCF component should contain a derived </p>
<p>The source for the component base class can be found in the ice-util-cpp repository. The header file is include/AsteriskSCF/Component/Component.h and the source file is src/Component/Component.cpp.</p>
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