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<title>DTN Reference Implementation: dtn::PostgresSQLImplementation Class Reference</title>
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<h1>dtn::PostgresSQLImplementation Class Reference</h1><!-- doxytag: class="dtn::PostgresSQLImplementation" -->Postgres based implementation of SQL database.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="PostgresSQLImplementation_8h-source.html">PostgresSQLImplementation.h</a>&gt;</code>
<p>

<p>
<a href="classdtn_1_1PostgresSQLImplementation-members.html">List of all members.</a><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">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#319849abe65b627c99f76acfcffc2dc0">PostgresSQLImplementation</a> ()</td></tr>

<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#db3dcaa6c882fc12231583f41ad604ee">connect</a> (const char *dbname)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#6fd02b3e466ade1afac0fbe530df9573">close</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="serialsource_8c.html#1062901a7428fdd9c7f180f5e01ea056">bool</a>&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#b00fe01dcb7b230f089983b590c5ebf4">has_table</a> (const char *tablename)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#33050e56684da7b1dc881fd3b603eb55">exec_query</a> (const char *query)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#d9121d84452c1329a854ed8441af1fb1">num_tuples</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">const char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#9be4e918a737e9ca7546e8a306aaf3d3">get_value</a> (int tuple_no, int field_no)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">const char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#8e69ddb49e323810a933731351b69dac">escape_string</a> (const char *from)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">const u_char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#67f16791075d40ef1a9dfda51e0a41fa">escape_binary</a> (const u_char *from, int from_length)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">const u_char *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#e4dca282c3ff70c518adadf03b0f6efd">unescape_binary</a> (const u_char *from)</td></tr>

<tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">PGconn *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#0eb33bd99e86b035f80f02e3f9478ef7">db_</a></td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">the db connection  <a href="#0eb33bd99e86b035f80f02e3f9478ef7"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">PGresult *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classdtn_1_1PostgresSQLImplementation.html#9a2643c906576953393644dddcf90cac">query_result_</a></td></tr>

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<hr><a name="_details"></a><h2>Detailed Description</h2>
Postgres based implementation of SQL database. 
<p>Definition at line <a class="el" href="PostgresSQLImplementation_8h-source.html#l00029">29</a> of file <a class="el" href="PostgresSQLImplementation_8h-source.html">PostgresSQLImplementation.h</a>.</p>
<hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="319849abe65b627c99f76acfcffc2dc0"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::PostgresSQLImplementation" ref="319849abe65b627c99f76acfcffc2dc0" args="()" -->
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          <td class="memname">dtn::PostgresSQLImplementation::PostgresSQLImplementation           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="6fd02b3e466ade1afac0fbe530df9573"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::close" ref="6fd02b3e466ade1afac0fbe530df9573" args="()" -->
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          <td class="memname">int dtn::PostgresSQLImplementation::close           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="db3dcaa6c882fc12231583f41ad604ee"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::connect" ref="db3dcaa6c882fc12231583f41ad604ee" args="(const char *dbname)" -->
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          <td class="memname">int dtn::PostgresSQLImplementation::connect           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>dbname</em>          </td>
          <td>&nbsp;)&nbsp;</td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="67f16791075d40ef1a9dfda51e0a41fa"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::escape_binary" ref="67f16791075d40ef1a9dfda51e0a41fa" args="(const u_char *from, int from_length)" -->
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          <td class="memname">const u_char* dtn::PostgresSQLImplementation::escape_binary           </td>
          <td>(</td>
          <td class="paramtype">const u_char *&nbsp;</td>
          <td class="paramname"> <em>from</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>from_length</em></td><td>&nbsp;</td>
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          <td></td>
          <td>)</td>
          <td></td><td></td><td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="8e69ddb49e323810a933731351b69dac"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::escape_string" ref="8e69ddb49e323810a933731351b69dac" args="(const char *from)" -->
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          <td class="memname">const char* dtn::PostgresSQLImplementation::escape_string           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>from</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="33050e56684da7b1dc881fd3b603eb55"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::exec_query" ref="33050e56684da7b1dc881fd3b603eb55" args="(const char *query)" -->
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          <td class="memname">int dtn::PostgresSQLImplementation::exec_query           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>query</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="9be4e918a737e9ca7546e8a306aaf3d3"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::get_value" ref="9be4e918a737e9ca7546e8a306aaf3d3" args="(int tuple_no, int field_no)" -->
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          <td class="memname">const char* dtn::PostgresSQLImplementation::get_value           </td>
          <td>(</td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>tuple_no</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&nbsp;</td>
          <td class="paramname"> <em>field_no</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="b00fe01dcb7b230f089983b590c5ebf4"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::has_table" ref="b00fe01dcb7b230f089983b590c5ebf4" args="(const char *tablename)" -->
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          <td class="memname"><a class="el" href="serialsource_8c.html#1062901a7428fdd9c7f180f5e01ea056">bool</a> dtn::PostgresSQLImplementation::has_table           </td>
          <td>(</td>
          <td class="paramtype">const char *&nbsp;</td>
          <td class="paramname"> <em>tablename</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<a class="anchor" name="d9121d84452c1329a854ed8441af1fb1"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::num_tuples" ref="d9121d84452c1329a854ed8441af1fb1" args="()" -->
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          <td class="memname">int dtn::PostgresSQLImplementation::num_tuples           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Virtual functions inherited from SQLImplementation 
</div>
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<a class="anchor" name="e4dca282c3ff70c518adadf03b0f6efd"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::unescape_binary" ref="e4dca282c3ff70c518adadf03b0f6efd" args="(const u_char *from)" -->
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          <td class="memname">const u_char* dtn::PostgresSQLImplementation::unescape_binary           </td>
          <td>(</td>
          <td class="paramtype">const u_char *&nbsp;</td>
          <td class="paramname"> <em>from</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Virtual functions inherited from SQLImplementation 
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="0eb33bd99e86b035f80f02e3f9478ef7"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::db_" ref="0eb33bd99e86b035f80f02e3f9478ef7" args="" -->
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          <td class="memname">PGconn* <a class="el" href="classdtn_1_1PostgresSQLImplementation.html#0eb33bd99e86b035f80f02e3f9478ef7">dtn::PostgresSQLImplementation::db_</a><code> [private]</code>          </td>
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<p>
the db connection 
<p>

<p>Definition at line <a class="el" href="PostgresSQLImplementation_8h-source.html#l00051">51</a> of file <a class="el" href="PostgresSQLImplementation_8h-source.html">PostgresSQLImplementation.h</a>.</p>

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<a class="anchor" name="9a2643c906576953393644dddcf90cac"></a><!-- doxytag: member="dtn::PostgresSQLImplementation::query_result_" ref="9a2643c906576953393644dddcf90cac" args="" -->
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          <td class="memname">PGresult* <a class="el" href="classdtn_1_1PostgresSQLImplementation.html#9a2643c906576953393644dddcf90cac">dtn::PostgresSQLImplementation::query_result_</a><code> [private]</code>          </td>
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<p>

<p>Definition at line <a class="el" href="PostgresSQLImplementation_8h-source.html#l00052">52</a> of file <a class="el" href="PostgresSQLImplementation_8h-source.html">PostgresSQLImplementation.h</a>.</p>

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</div><p>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="PostgresSQLImplementation_8h-source.html">PostgresSQLImplementation.h</a></ul>
</div>
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