<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Class Poco::NObserver</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <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"/> <meta name="language" content="en"/> <meta name="date" content="2009-11-24"/> <meta name="generator" content="PocoDoc"/> <link rel="stylesheet" href="css/styles.css" type="text/css"/> </head> <body bgcolor="#ffffff" leftmargin="0" topmargin="0"> <div class="header"> <h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1> <h1 class="template">template < class C, class N ></h1> <h1 class="symbol">class NObserver</h1> </div> <div class="body"> <p> <b>Library:</b> Foundation<br /> <b>Package:</b> Notifications<br /> <b>Header:</b> Poco/NObserver.h</p> <h2>Description</h2> <div class="description"> <p>This template class implements an adapter that sits between a <a href="Poco.NotificationCenter.html" title="class Poco::NotificationCenter">NotificationCenter</a> and an object receiving notifications from it. It is quite similar in concept to the <a href="Poco.RunnableAdapter.html" title="class Poco::RunnableAdapter">RunnableAdapter</a>, but provides some <a href="Poco.NotificationCenter.html" title="class Poco::NotificationCenter">NotificationCenter</a> specific additional methods. See the <a href="Poco.NotificationCenter.html" title="class Poco::NotificationCenter">NotificationCenter</a> class for information on how to use this template class. </p> <p>This class template is quite similar to the <a href="Poco.Observer.html" title="class Poco::Observer">Observer</a> class template. The only difference is that the <a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a> expects the callback function to accept a const <a href="Poco.AutoPtr.html" title="class Poco::AutoPtr">AutoPtr</a>& instead of a plain pointer as argument, thus simplifying memory management. </p> </div> <h2>Inheritance</h2> <p><b>Direct Base Classes: </b><a href="Poco.AbstractObserver.html" title="class Poco::AbstractObserver">AbstractObserver</a></p> <p><b>All Base Classes: </b><a href="Poco.AbstractObserver.html" title="class Poco::AbstractObserver">AbstractObserver</a></p> <h2>Member Summary</h2> <p><b>Member Functions: </b><a href="Poco.NObserver.html#8581" title="Poco::NObserver::accepts()">accepts</a>, <a href="Poco.NObserver.html#8583" title="Poco::NObserver::clone()">clone</a>, <a href="Poco.NObserver.html#8579" title="Poco::NObserver::equals()">equals</a>, <a href="Poco.NObserver.html#8577" title="Poco::NObserver::notify()">notify</a>, <a href="Poco.NObserver.html#8575" title="Poco::NObserver::operator =()">operator =</a></p> <p><b>Inherited Functions: </b><a href="Poco.AbstractObserver.html#3308" title="Poco::AbstractObserver::accepts()">accepts</a>, <a href="Poco.AbstractObserver.html#3310" title="Poco::AbstractObserver::clone()">clone</a>, <a href="Poco.AbstractObserver.html#3306" title="Poco::AbstractObserver::equals()">equals</a>, <a href="Poco.AbstractObserver.html#3304" title="Poco::AbstractObserver::notify()">notify</a>, <a href="Poco.AbstractObserver.html#3302" title="Poco::AbstractObserver::operator =()">operator =</a></p> <h2>Types</h2> <h3><a name="8567">NotificationPtr</a></h3> <p class="decl">typedef <a href="Poco.AutoPtr.html" title="class Poco::AutoPtr">AutoPtr</a> < N > <a href="Poco.NObserver.html#8567" title="Poco::NObserver::NotificationPtr">NotificationPtr</a>;</p> <div class="description"> <p></p> </div> <h3><a name="8568">void</a></h3> <p class="decl">typedef void (C::* Callback)(const <a href="Poco.NObserver.html#8567" title="Poco::NObserver::NotificationPtr">NotificationPtr</a> &);</p> <div class="description"> <p></p> </div> <h2>Constructors</h2> <h3><a name="8572">NObserver</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a>(<br /> const <a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a> & observer<br />);</p> <div class="description"> <p></p> </div> <h3><a name="8569">NObserver</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a>(<br /> C & object,<br /> Callback method<br />);</p> <div class="description"> <p></p> </div> <h2>Destructor</h2> <h3><a name="8574">~NObserver</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">~<a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a>();</p> <div class="description"> <p></p> </div> <h2>Member Functions</h2> <h3><a name="8581">accepts</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">bool accepts(<br /> <a href="Poco.Notification.html" title="class Poco::Notification">Notification</a> * pNf<br />) const;</p> <div class="description"> <p></p> </div> <div class="description"><p><b>See also:</b> <a href="Poco.AbstractObserver.html#3308" title="Poco::AbstractObserver::accepts()">Poco::AbstractObserver::accepts()</a></p></div> <h3><a name="8583">clone</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"><a href="Poco.AbstractObserver.html" title="class Poco::AbstractObserver">AbstractObserver</a> * clone() const;</p> <div class="description"> <p></p> </div> <div class="description"><p><b>See also:</b> <a href="Poco.AbstractObserver.html#3310" title="Poco::AbstractObserver::clone()">Poco::AbstractObserver::clone()</a></p></div> <h3><a name="8579">equals</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">bool equals(<br /> const <a href="Poco.AbstractObserver.html" title="class Poco::AbstractObserver">AbstractObserver</a> & abstractObserver<br />) const;</p> <div class="description"> <p></p> </div> <div class="description"><p><b>See also:</b> <a href="Poco.AbstractObserver.html#3306" title="Poco::AbstractObserver::equals()">Poco::AbstractObserver::equals()</a></p></div> <h3><a name="8577">notify</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">void notify(<br /> <a href="Poco.Notification.html" title="class Poco::Notification">Notification</a> * pNf<br />) const;</p> <div class="description"> <p></p> </div> <div class="description"><p><b>See also:</b> <a href="Poco.AbstractObserver.html#3304" title="Poco::AbstractObserver::notify()">Poco::AbstractObserver::notify()</a></p></div> <h3><a name="8575">operator =</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a> & operator = (<br /> const <a href="Poco.NObserver.html" title="class Poco::NObserver">NObserver</a> & observer<br />);</p> <div class="description"> <p></p> </div> <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> </div> </body> </html>
