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<title>Class Poco::Util::ConfigurationView</title>
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<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
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<h1 class="namespace"><a href="Poco.Util.html" class="namespace">Poco::Util</a></h1>
<h1 class="symbol">class ConfigurationView</h1>
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<p>
<b>Library:</b> Util<br />
<b>Package:</b> Configuration<br />
<b>Header:</b> Poco/Util/ConfigurationView.h</p>
<h2>Description</h2>
<div class="description">
<p>This configuration implements a "view" into a sub-hierarchy of another configuration. </p>
<p>For example, given a configuration with the following properties: </p>
<pre>config.value1
config.value2
config.sub.value1
config.sub.value2
</pre>
<p>and a <a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a> with the prefix "config", then the above properties will be available via the view as </p>
<pre>value1
value2
sub.value1
sub.value2
</pre>
<p>A <a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a> is most useful in combination with a <a href="Poco.Util.LayeredConfiguration.html" title="class Poco::Util::LayeredConfiguration">LayeredConfiguration</a>. </p>
<p>If a property is not found in the view, it is searched in the original configuration. Given the above example configuration, the property named "config.value1" will still be found in the view. </p>
<p>The main reason for this is that placeholder expansion (${property}) still works as expected given a <a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a>. </p>
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<h2>Inheritance</h2>
<p><b>Direct Base Classes: </b><a href="Poco.Util.AbstractConfiguration.html" title="class Poco::Util::AbstractConfiguration">AbstractConfiguration</a></p>
<p><b>All Base Classes: </b><a href="Poco.RefCountedObject.html" title="class Poco::RefCountedObject">Poco::RefCountedObject</a>, <a href="Poco.Util.AbstractConfiguration.html" title="class Poco::Util::AbstractConfiguration">AbstractConfiguration</a></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Util.ConfigurationView.html#16537" title="Poco::Util::ConfigurationView::enumerate()">enumerate</a>, <a href="Poco.Util.ConfigurationView.html#16531" title="Poco::Util::ConfigurationView::getRaw()">getRaw</a>, <a href="Poco.Util.ConfigurationView.html#16534" title="Poco::Util::ConfigurationView::setRaw()">setRaw</a>, <a href="Poco.Util.ConfigurationView.html#16540" title="Poco::Util::ConfigurationView::translateKey()">translateKey</a></p>
<p><b>Inherited Functions: </b><a href="Poco.Util.AbstractConfiguration.html#16368" title="Poco::Util::AbstractConfiguration::createView()">createView</a>, <a href="Poco.RefCountedObject.html#9659" title="Poco::RefCountedObject::duplicate()">duplicate</a>, <a href="Poco.Util.AbstractConfiguration.html#16380" title="Poco::Util::AbstractConfiguration::enumerate()">enumerate</a>, <a href="Poco.Util.AbstractConfiguration.html#16372" title="Poco::Util::AbstractConfiguration::expand()">expand</a>, <a href="Poco.Util.AbstractConfiguration.html#16346" title="Poco::Util::AbstractConfiguration::getBool()">getBool</a>, <a href="Poco.Util.AbstractConfiguration.html#16341" title="Poco::Util::AbstractConfiguration::getDouble()">getDouble</a>, <a href="Poco.Util.AbstractConfiguration.html#16338" title="Poco::Util::AbstractConfiguration::getInt()">getInt</a>, <a href="Poco.Util.AbstractConfiguration.html#16374" title="Poco::Util::AbstractConfiguration::getRaw()">getRaw</a>, <a href="Poco.Util.AbstractConfiguration.html#16331" title="Poco::Util::AbstractConfiguration::getRawString()">getRawString</a>, <a href="Poco.Util.AbstractConfiguration.html#16326" title="Poco::Util::AbstractConfiguration::getString()">getString</a>, <a href="Poco.Util.AbstractConfiguration.html#16324" title="Poco::Util::AbstractConfiguration::hasOption()">hasOption</a>, <a href="Poco.Util.AbstractConfiguration.html#16322" title="Poco::Util::AbstractConfiguration::hasProperty()">hasProperty</a>, <a href="Poco.Util.AbstractConfiguration.html#16363" title="Poco::Util::AbstractConfiguration::keys()">keys</a>, <a href="Poco.Util.AbstractConfiguration.html#16385" title="Poco::Util::AbstractConfiguration::parseBool()">parseBool</a>, <a href="Poco.Util.AbstractConfiguration.html#16383" title="Poco::Util::AbstractConfiguration::parseInt()">parseInt</a>, <a href="Poco.RefCountedObject.html#9661" title="Poco::RefCountedObject::referenceCount()">referenceCount</a>, <a href="Poco.RefCountedObject.html#9660" title="Poco::RefCountedObject::release()">release</a>, <a href="Poco.Util.AbstractConfiguration.html#16360" title="Poco::Util::AbstractConfiguration::setBool()">setBool</a>, <a href="Poco.Util.AbstractConfiguration.html#16357" title="Poco::Util::AbstractConfiguration::setDouble()">setDouble</a>, <a href="Poco.Util.AbstractConfiguration.html#16354" title="Poco::Util::AbstractConfiguration::setInt()">setInt</a>, <a href="Poco.Util.AbstractConfiguration.html#16377" title="Poco::Util::AbstractConfiguration::setRaw()">setRaw</a>, <a href="Poco.Util.AbstractConfiguration.html#16351" title="Poco::Util::AbstractConfiguration::setString()">setString</a></p>
<h2>Constructors</h2>
<h3><a name="16528">ConfigurationView</a></h3>
<p class="decl"><a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a>(<br /> const std::string & prefix,<br /> <a href="Poco.Util.AbstractConfiguration.html" title="class Poco::Util::AbstractConfiguration">AbstractConfiguration</a> * pConfig<br />);</p>
<div class="description">
<p>Creates the <a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a>. The <a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a> does not take ownership of the passed configuration. </p>
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<h2>Destructor</h2>
<h3><a name="16542">~ConfigurationView</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">~<a href="Poco.Util.ConfigurationView.html" title="class Poco::Util::ConfigurationView">ConfigurationView</a>();</p>
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<p></p>
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<h2>Member Functions</h2>
<h3><a name="16537">enumerate</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void enumerate(<br /> const std::string & key,<br /> Keys & range<br />) const;</p>
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<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.Util.AbstractConfiguration.html#16380" title="Poco::Util::AbstractConfiguration::enumerate()">Poco::Util::AbstractConfiguration::enumerate()</a></p></div>
<h3><a name="16531">getRaw</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">bool getRaw(<br /> const std::string & key,<br /> std::string & value<br />) const;</p>
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<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.Util.AbstractConfiguration.html#16374" title="Poco::Util::AbstractConfiguration::getRaw()">Poco::Util::AbstractConfiguration::getRaw()</a></p></div>
<h3><a name="16534">setRaw</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">void setRaw(<br /> const std::string & key,<br /> const std::string & value<br />);</p>
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<p></p>
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<div class="description"><p><b>See also:</b> <a href="Poco.Util.AbstractConfiguration.html#16377" title="Poco::Util::AbstractConfiguration::setRaw()">Poco::Util::AbstractConfiguration::setRaw()</a></p></div>
<h3><a name="16540">translateKey</a> <img src="images/protected.gif" alt="protected" title="protected" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">std::string translateKey(<br /> const std::string & key<br />) const;</p>
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<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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