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<a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QLandmarkUnionFilter Class Reference</h1>
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<p>The QLandmarkUnionFilter class provides a filter which unions the results of its constituent filters. <a href="#details">More...</a></p>
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<pre class="cpp"> <span class="preprocessor">#include <QLandmarkUnionFilter></span></pre><p><b>Inherits: </b><a href="qlandmarkfilter.html">QLandmarkFilter</a>.</p>
<p>This class was introduced in Qt Mobility 1.1.</p>
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<li><a href="qlandmarkunionfilter-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#QLandmarkUnionFilter">QLandmarkUnionFilter</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#QLandmarkUnionFilter-2">QLandmarkUnionFilter</a></b> ( const QLandmarkFilter & <i>other</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#dtor.QLandmarkUnionFilter">~QLandmarkUnionFilter</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#append">append</a></b> ( const QLandmarkFilter & <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#clear">clear</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QList<QLandmarkFilter> </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#filters">filters</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#prepend">prepend</a></b> ( const QLandmarkFilter & <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#remove">remove</a></b> ( const QLandmarkFilter & <i>filter</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#setFilters">setFilters</a></b> ( const QList<QLandmarkFilter> & <i>filters</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QLandmarkUnionFilter & </td><td class="memItemRight bottomAlign"><b><a href="qlandmarkunionfilter.html#operator-lt-lt">operator<<</a></b> ( const QLandmarkFilter & <i>filter</i> )</td></tr>
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<li class="fn">4 public functions inherited from <a href="qlandmarkfilter.html#public-functions">QLandmarkFilter</a></li>
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<a name="details"></a>
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<div class="descr">
<h2>Detailed Description</h2>
<p>The QLandmarkUnionFilter class provides a filter which unions the results of its constituent filters.</p>
<p>Conceptually it performs an OR operation and may thus be used to select landmarks which match any one of it's constituent filters.</p>
<p>Whether a union filter can be comprised of compound filters (i.e. union or intersection filters) is backend specific. Even if this is supported the performance of such a filter is likely to be poor.</p>
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<div class="func">
<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="QLandmarkUnionFilter"></a>QLandmarkUnionFilter::<span class="name">QLandmarkUnionFilter</span> ()</h3>
<p>Constructs a new union filter.</p>
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<h3 class="fn"><a name="QLandmarkUnionFilter-2"></a>QLandmarkUnionFilter::<span class="name">QLandmarkUnionFilter</span> ( const <span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span> & <i>other</i> )</h3>
<p>Constructs a copy of <i>other</i> if possible, otherwise constructs a new union filter.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
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<h3 class="fn"><a name="dtor.QLandmarkUnionFilter"></a>QLandmarkUnionFilter::<span class="name">~QLandmarkUnionFilter</span> ()<tt> [virtual]</tt></h3>
<p>Destroys the filter.</p>
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<h3 class="fn"><a name="append"></a><span class="type">void</span> QLandmarkUnionFilter::<span class="name">append</span> ( const <span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span> & <i>filter</i> )</h3>
<p>Appends the given <i>filter</i> to the list of unioned filters.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#operator-lt-lt">operator<<</a>(), <a href="qlandmarkunionfilter.html#prepend">prepend</a>(), and <a href="qlandmarkunionfilter.html#filters">filters</a>().</p>
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<h3 class="fn"><a name="clear"></a><span class="type">void</span> QLandmarkUnionFilter::<span class="name">clear</span> ()</h3>
<p>Removes all filters from the union list.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#remove">remove</a>().</p>
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<h3 class="fn"><a name="filters"></a><span class="type"><a href="http://qt.nokia.com/doc/4.7/qlist.html">QList</a></span><<span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span>> QLandmarkUnionFilter::<span class="name">filters</span> () const</h3>
<p>Returns the list of filters which form the union filter.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#setFilters">setFilters</a>(), <a href="qlandmarkunionfilter.html#prepend">prepend</a>(), <a href="qlandmarkunionfilter.html#append">append</a>(), and <a href="qlandmarkunionfilter.html#remove">remove</a>().</p>
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<h3 class="fn"><a name="prepend"></a><span class="type">void</span> QLandmarkUnionFilter::<span class="name">prepend</span> ( const <span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span> & <i>filter</i> )</h3>
<p>Prepends the given <i>filter</i> to the list of unioned filters.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#append">append</a>() and <a href="qlandmarkunionfilter.html#filters">filters</a>().</p>
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<h3 class="fn"><a name="remove"></a><span class="type">void</span> QLandmarkUnionFilter::<span class="name">remove</span> ( const <span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span> & <i>filter</i> )</h3>
<p>Removes the given <i>filter</i> from the union list.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#filters">filters</a>(), <a href="qlandmarkunionfilter.html#append">append</a>(), and <a href="qlandmarkunionfilter.html#prepend">prepend</a>().</p>
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<h3 class="fn"><a name="setFilters"></a><span class="type">void</span> QLandmarkUnionFilter::<span class="name">setFilters</span> ( const <span class="type"><a href="http://qt.nokia.com/doc/4.7/qlist.html">QList</a></span><<span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span>> & <i>filters</i> )</h3>
<p>Sets the <i>filters</i> whose criteria will be unioned.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#filters">filters</a>().</p>
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<h3 class="fn"><a name="operator-lt-lt"></a><span class="type">QLandmarkUnionFilter</span> & QLandmarkUnionFilter::<span class="name">operator<<</span> ( const <span class="type"><a href="qlandmarkfilter.html">QLandmarkFilter</a></span> & <i>filter</i> )</h3>
<p>Appends the given <i>filter</i> to the list of unioned filters.</p>
<p>This function was introduced in Qt Mobility 1.1.</p>
<p><b>See also </b><a href="qlandmarkunionfilter.html#append">append</a>().</p>
<!-- @@@operator<< -->
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