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    <h2><a name="content"></a>akregator/src</h2>


<!-- Generated by Doxygen 1.5.5 -->
  <div class="navpath"><b>Akregator</b>::<b>Backend</b>::<a class="el" href="classAkregator_1_1Backend_1_1Storage.html">Storage</a>
  </div>
<div class="contents">
<h1>Akregator::Backend::Storage Class Reference</h1><!-- doxytag: class="Akregator::Backend::Storage" --><!-- doxytag: inherits="QObject" --><code>#include &lt;<a class="el" href="storage_8h-source.html">storage.h</a>&gt;</code>
<p>
<div class="dynheader">
Inheritance diagram for Akregator::Backend::Storage:</div>
<div class="dynsection">

<p><center><img src="classAkregator_1_1Backend_1_1Storage.png" usemap="#Akregator::Backend::Storage_map" border="0" alt=""></center>
<map name="Akregator::Backend::Storage_map">
<area href="classAkregator_1_1Backend_1_1StorageDummyImpl.html" alt="Akregator::Backend::StorageDummyImpl" shape="rect" coords="0,56,236,80">
</map>
</div>

<p>
<a href="classAkregator_1_1Backend_1_1Storage-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
<a class="el" href="classAkregator_1_1Backend_1_1Storage.html" title="Storage is the main interface to the article archive.">Storage</a> is the main interface to the article archive. 
<p>
It creates and manages FeedStorage objects handling the article list for a feed.<p>
An archive implementation must implement <a class="el" href="classAkregator_1_1Backend_1_1Storage.html" title="Storage is the main interface to the article archive.">Storage</a>, FeedStorage and StorageFactory. See mk4storage for an example. 
<p>Definition at line <a class="el" href="storage_8h-source.html#l00044">44</a> of file <a class="el" href="storage_8h-source.html">storage.h</a>.</p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#90d5b812f0458bbd3643c4ae89597fa8">initialize</a> (const QStringList &amp;params)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#5a798c33904a577305cd775c85bb7712">open</a> (bool autoCommit=false)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#01f779d5cae6863cc2cce994ddb2a4e2">commit</a> ()=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#9e441430894d7e51637ac9f64f5cc74a">rollback</a> ()=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#9821421e17bfeb1fde445f38a5b6800c">close</a> ()=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual FeedStorage *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#2bce97f5c4acc235e5acd0b7afc3257b">archiveFor</a> (const QString &amp;url)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="01752d2eb063b5ac711972a6b5b24992"></a><!-- doxytag: member="Akregator::Backend::Storage::autoCommit" ref="01752d2eb063b5ac711972a6b5b24992" args="() const =0" -->
virtual bool&nbsp;</td><td class="memItemRight" valign="bottom"><b>autoCommit</b> () const =0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9b18b7f7f74a813f7331f651e7283038"></a><!-- doxytag: member="Akregator::Backend::Storage::unreadFor" ref="9b18b7f7f74a813f7331f651e7283038" args="(const QString &amp;url)=0" -->
virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><b>unreadFor</b> (const QString &amp;url)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d10e430997cebdd6c1ceade9cea77fb4"></a><!-- doxytag: member="Akregator::Backend::Storage::setUnreadFor" ref="d10e430997cebdd6c1ceade9cea77fb4" args="(const QString &amp;url, int unread)=0" -->
virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><b>setUnreadFor</b> (const QString &amp;url, int unread)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="30e6baea4144a84bc1c17ca304ab2a04"></a><!-- doxytag: member="Akregator::Backend::Storage::totalCountFor" ref="30e6baea4144a84bc1c17ca304ab2a04" args="(const QString &amp;url)=0" -->
virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><b>totalCountFor</b> (const QString &amp;url)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="85c94e473c7eced95cbb52dc53bce11c"></a><!-- doxytag: member="Akregator::Backend::Storage::setTotalCountFor" ref="85c94e473c7eced95cbb52dc53bce11c" args="(const QString &amp;url, int total)=0" -->
virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><b>setTotalCountFor</b> (const QString &amp;url, int total)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="97bf262edad123b86027f5bc89726d65"></a><!-- doxytag: member="Akregator::Backend::Storage::lastFetchFor" ref="97bf262edad123b86027f5bc89726d65" args="(const QString &amp;url)=0" -->
virtual int&nbsp;</td><td class="memItemRight" valign="bottom"><b>lastFetchFor</b> (const QString &amp;url)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="730472001892e77bdc46a07130618810"></a><!-- doxytag: member="Akregator::Backend::Storage::setLastFetchFor" ref="730472001892e77bdc46a07130618810" args="(const QString &amp;url, int lastFetch)=0" -->
virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><b>setLastFetchFor</b> (const QString &amp;url, int lastFetch)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#7f975545e8a3fceec82a5c584e08c9bc">storeFeedList</a> (const QString &amp;opmlStr)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3d7e2b3514f58496e96eade7c7fbf6de"></a><!-- doxytag: member="Akregator::Backend::Storage::restoreFeedList" ref="3d7e2b3514f58496e96eade7c7fbf6de" args="() const =0" -->
virtual QString&nbsp;</td><td class="memItemRight" valign="bottom"><b>restoreFeedList</b> () const =0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8bc2060bbed92c43dcc61a6d3eb61ceb"></a><!-- doxytag: member="Akregator::Backend::Storage::storeTagSet" ref="8bc2060bbed92c43dcc61a6d3eb61ceb" args="(const QString &amp;xmlStr)=0" -->
virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><b>storeTagSet</b> (const QString &amp;xmlStr)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="33f7b1e38ae135e72b25bb4109434d67"></a><!-- doxytag: member="Akregator::Backend::Storage::restoreTagSet" ref="33f7b1e38ae135e72b25bb4109434d67" args="() const =0" -->
virtual QString&nbsp;</td><td class="memItemRight" valign="bottom"><b>restoreTagSet</b> () const =0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QStringList&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#5092f80ec84fc612e24f39b5a44e4c7b">feeds</a> () const =0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#fd3e9c3db5b3243663e82c9be0749ed8">add</a> (<a class="el" href="classAkregator_1_1Backend_1_1Storage.html">Storage</a> *source)=0</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html#385edea89211d499ee078378b6895a7e">clear</a> ()=0</td></tr>

<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="53c513bb41370868ea52cb3140658264"></a><!-- doxytag: member="Akregator::Backend::Storage::getInstance" ref="53c513bb41370868ea52cb3140658264" args="()" -->
static <a class="el" href="classAkregator_1_1Backend_1_1Storage.html">Storage</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><b>getInstance</b> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7b546c61deaddcf55a84e192eed21117"></a><!-- doxytag: member="Akregator::Backend::Storage::setInstance" ref="7b546c61deaddcf55a84e192eed21117" args="(Storage *instance)" -->
static void&nbsp;</td><td class="memItemRight" valign="bottom"><b>setInstance</b> (<a class="el" href="classAkregator_1_1Backend_1_1Storage.html">Storage</a> *instance)</td></tr>

</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="90d5b812f0458bbd3643c4ae89597fa8"></a><!-- doxytag: member="Akregator::Backend::Storage::initialize" ref="90d5b812f0458bbd3643c4ae89597fa8" args="(const QStringList &amp;params)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual void Akregator::Backend::Storage::initialize           </td>
          <td>(</td>
          <td class="paramtype">const QStringList &amp;&nbsp;</td>
          <td class="paramname"> <em>params</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
initializes the storage object with given parameters 
<p>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#e68437ceb6622c8a4d265c031a13492d">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="5a798c33904a577305cd775c85bb7712"></a><!-- doxytag: member="Akregator::Backend::Storage::open" ref="5a798c33904a577305cd775c85bb7712" args="(bool autoCommit=false)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual bool Akregator::Backend::Storage::open           </td>
          <td>(</td>
          <td class="paramtype">bool&nbsp;</td>
          <td class="paramname"> <em>autoCommit</em> = <code>false</code>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Open storage and prepare it for work. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>true on success. </dd></dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#423eb4df0c7f0eb825eb28aed1c0b11d">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="01f779d5cae6863cc2cce994ddb2a4e2"></a><!-- doxytag: member="Akregator::Backend::Storage::commit" ref="01f779d5cae6863cc2cce994ddb2a4e2" args="()=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual bool Akregator::Backend::Storage::commit           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Commit changes made in feeds and articles, making them persistent. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>true on success. </dd></dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#21d4cca91d3eb6feaf9c17b8dada89c4">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="9e441430894d7e51637ac9f64f5cc74a"></a><!-- doxytag: member="Akregator::Backend::Storage::rollback" ref="9e441430894d7e51637ac9f64f5cc74a" args="()=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual bool Akregator::Backend::Storage::rollback           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Rollback changes made in feeds and articles, reverting to last committed values. 
<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>true on success. </dd></dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#80bc825789a8adedc2829492fba5f2ce">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="9821421e17bfeb1fde445f38a5b6800c"></a><!-- doxytag: member="Akregator::Backend::Storage::close" ref="9821421e17bfeb1fde445f38a5b6800c" args="()=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual bool Akregator::Backend::Storage::close           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Closes storage, freeing all allocated resources. 
<p>
Called from destructor, so you don't need to call it directly. <dl class="return" compact><dt><b>Returns:</b></dt><dd>true on success. </dd></dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#66f014fa2340af7c3835a2e2d3c54382">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="2bce97f5c4acc235e5acd0b7afc3257b"></a><!-- doxytag: member="Akregator::Backend::Storage::archiveFor" ref="2bce97f5c4acc235e5acd0b7afc3257b" args="(const QString &amp;url)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual FeedStorage* Akregator::Backend::Storage::archiveFor           </td>
          <td>(</td>
          <td class="paramtype">const QString &amp;&nbsp;</td>
          <td class="paramname"> <em>url</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="classAkregator_1_1Article.html" title="A proxy class for RSS::Article with some additional methods to assist sorting.">Article</a> archive for feed at given url. </dd></dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#3364f7e0edb55882a3b35637d4dbc987">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="7f975545e8a3fceec82a5c584e08c9bc"></a><!-- doxytag: member="Akregator::Backend::Storage::storeFeedList" ref="7f975545e8a3fceec82a5c584e08c9bc" args="(const QString &amp;opmlStr)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual void Akregator::Backend::Storage::storeFeedList           </td>
          <td>(</td>
          <td class="paramtype">const QString &amp;&nbsp;</td>
          <td class="paramname"> <em>opmlStr</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
stores the feed list in the storage backend. 
<p>
This is a fallback for the case that the feeds.opml file gets corrupted <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>opmlStr</em>&nbsp;</td><td>the feed list in OPML format </td></tr>
  </table>
</dl>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#6bdee60bec7284da9763af01d6f36e41">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="5092f80ec84fc612e24f39b5a44e4c7b"></a><!-- doxytag: member="Akregator::Backend::Storage::feeds" ref="5092f80ec84fc612e24f39b5a44e4c7b" args="() const =0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual QStringList Akregator::Backend::Storage::feeds           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"> const<code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
returns a list of all feeds (URLs) stored in this archive 
<p>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#c316c7117e5316c59b1504f6c153b437">Akregator::Backend::StorageDummyImpl</a>.</p>

</div>
</div><p>
<a class="anchor" name="fd3e9c3db5b3243663e82c9be0749ed8"></a><!-- doxytag: member="Akregator::Backend::Storage::add" ref="fd3e9c3db5b3243663e82c9be0749ed8" args="(Storage *source)=0" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">virtual void Akregator::Backend::Storage::add           </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classAkregator_1_1Backend_1_1Storage.html">Storage</a> *&nbsp;</td>
          <td class="paramname"> <em>source</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
adds all feed storages from a source to this storage existing articles are replaced 
<p>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#8effc6fa3b17f1a6ae5476b6bfc9044c">Akregator::Backend::StorageDummyImpl</a>.</p>

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<a class="anchor" name="385edea89211d499ee078378b6895a7e"></a><!-- doxytag: member="Akregator::Backend::Storage::clear" ref="385edea89211d499ee078378b6895a7e" args="()=0" -->
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          <td class="memname">virtual void Akregator::Backend::Storage::clear           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"><code> [pure virtual]</code></td>
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<p>
deletes all feed storages in this archive 
<p>

<p>Implemented in <a class="el" href="classAkregator_1_1Backend_1_1StorageDummyImpl.html#b29a746217330f49759659817e0046ce">Akregator::Backend::StorageDummyImpl</a>.</p>

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<hr>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="storage_8h-source.html">storage.h</a><li><a class="el" href="storage_8cpp-source.html">storage.cpp</a></ul>
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