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<title>Class Poco::AbstractMetaObject</title>
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<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<meta name="date" content="2009-11-24"/>
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<h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1>
<h1 class="template">template < class B ></h1>
<h1 class="symbol">class AbstractMetaObject</h1>
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<div class="body">
<p>
<b>Library:</b> Foundation<br />
<b>Package:</b> SharedLibrary<br />
<b>Header:</b> Poco/MetaObject.h</p>
<h2>Description</h2>
<div class="description">
<p>A <a href="Poco.MetaObject.html" title="class Poco::MetaObject">MetaObject</a> stores some information about a C++ class. The <a href="Poco.MetaObject.html" title="class Poco::MetaObject">MetaObject</a> class is used by the <a href="Poco.Manifest.html" title="class Poco::Manifest">Manifest</a> class. <a href="Poco.AbstractMetaObject.html" title="class Poco::AbstractMetaObject">AbstractMetaObject</a> is a common base class for all <a href="Poco.MetaObject.html" title="class Poco::MetaObject">MetaObject</a> in a rooted class hierarchy. A <a href="Poco.MetaObject.html" title="class Poco::MetaObject">MetaObject</a> can also be used as an object factory for its class. </p>
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<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.AbstractMetaObject.html#8496" title="Poco::AbstractMetaObject::autoDelete()">autoDelete</a>, <a href="Poco.AbstractMetaObject.html#8493" title="Poco::AbstractMetaObject::canCreate()">canCreate</a>, <a href="Poco.AbstractMetaObject.html#8491" title="Poco::AbstractMetaObject::create()">create</a>, <a href="Poco.AbstractMetaObject.html#8494" title="Poco::AbstractMetaObject::destroy()">destroy</a>, <a href="Poco.AbstractMetaObject.html#8492" title="Poco::AbstractMetaObject::instance()">instance</a>, <a href="Poco.AbstractMetaObject.html#8498" title="Poco::AbstractMetaObject::isAutoDelete()">isAutoDelete</a>, <a href="Poco.AbstractMetaObject.html#8490" title="Poco::AbstractMetaObject::name()">name</a></p>
<h2>Constructors</h2>
<h3><a name="8487">AbstractMetaObject</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl"><a href="Poco.AbstractMetaObject.html" title="class Poco::AbstractMetaObject">AbstractMetaObject</a>(<br /> const char * name<br />);</p>
<div class="description">
<p></p>
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<h2>Destructor</h2>
<h3><a name="8489">~AbstractMetaObject</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual ~<a href="Poco.AbstractMetaObject.html" title="class Poco::AbstractMetaObject">AbstractMetaObject</a>();</p>
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<p></p>
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<h2>Member Functions</h2>
<h3><a name="8496">autoDelete</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">B * autoDelete(<br /> B * pObject<br />) const;</p>
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<p>Give ownership of pObject to the meta object. The meta object will delete all objects it owns when it is destroyed. </p>
<p>Returns pObject. </p>
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<h3><a name="8493">canCreate</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool canCreate() const = 0;</p>
<div class="description">
<p>Returns true if and only if the create method can be used to create instances of the class. Returns false if the class is a singleton. </p>
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<h3><a name="8491">create</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual B * create() const = 0;</p>
<div class="description">
<p>Create a new instance of a class. Cannot be used for singletons. </p>
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<h3><a name="8494">destroy</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual void destroy(<br /> B * pObject<br />) const;</p>
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<p>If pObject was owned by meta object, the ownership of the deleted object is removed and the object is deleted. </p>
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<h3><a name="8492">instance</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual B & instance() const = 0;</p>
<div class="description">
<p>Returns a reference to the only instance of the class. Used for singletons only. </p>
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<h3><a name="8498">isAutoDelete</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool isAutoDelete(<br /> B * pObject<br />) const;</p>
<div class="description">
<p>Returns true if the object is owned by meta object. </p>
<p>Overloaded in <a href="Poco.MetaSingleton.html" title="class Poco::MetaSingleton">MetaSingleton</a> - returns true if the class is a singleton. </p>
</div>
<h3><a name="8490">name</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">const char * name() const;</p>
<div class="description">
<p></p>
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<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
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