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<div class="title">Transaction.cpp</div> </div>
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<a href="_transaction_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/**</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * @file Transaction.cpp</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * @brief A Transaction is way to group multiple SQL statements into an atomic secured operation.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * Copyright (c) 2012-2013 Sebastien Rombauts (sebastien.rombauts@gmail.com)</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * or copy at http://opensource.org/licenses/MIT)</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> */</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include "<a class="code" href="_transaction_8h.html" title="A Transaction is way to group multiple SQL statements into an atomic secured operation.">Transaction.h</a>"</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "<a class="code" href="_database_8h.html" title="Management of a SQLite Database Connection.">Database.h</a>"</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>SQLite</div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> {</div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// Begins the SQLite transaction</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"><a class="code" href="class_s_q_lite_1_1_transaction.html#a2c18ffe14d32584c88ea83a72243d412"> 18</a></span> <a class="code" href="class_s_q_lite_1_1_transaction.html#a2c18ffe14d32584c88ea83a72243d412" title="Begins the SQLite transaction.">Transaction::Transaction</a>(<a class="code" href="class_s_q_lite_1_1_database.html" title="RAII management of a SQLite Database Connection.">Database</a>& aDatabase) : <span class="comment">// throw(SQLite::Exception)</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  mDatabase(aDatabase),</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  mbCommited(false)</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> {</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  mDatabase.<a class="code" href="class_s_q_lite_1_1_database.html#a0158bf527b79317679c9cf1e6daf1c43" title="Shortcut to execute one or multiple statements without results.">exec</a>(<span class="stringliteral">"BEGIN"</span>);</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> }</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// Safely rollback the transaction if it has not been committed.</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="code" href="class_s_q_lite_1_1_transaction.html#a87b3d44948f0899c494e62542b3f92c3"> 26</a></span> <a class="code" href="class_s_q_lite_1_1_transaction.html#a87b3d44948f0899c494e62542b3f92c3" title="Safely rollback the transaction if it has not been committed.">Transaction::~Transaction</a>(<span class="keywordtype">void</span>) throw() <span class="comment">// nothrow</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keywordflow">if</span> (<span class="keyword">false</span> == mbCommited)</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  {</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keywordflow">try</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  {</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  mDatabase.<a class="code" href="class_s_q_lite_1_1_database.html#a0158bf527b79317679c9cf1e6daf1c43" title="Shortcut to execute one or multiple statements without results.">exec</a>(<span class="stringliteral">"ROLLBACK"</span>);</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  }</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordflow">catch</span> (<a class="code" href="class_s_q_lite_1_1_exception.html" title="Encapsulation of the error message from SQLite3, based on std::runtime_error.">SQLite::Exception</a>& <span class="comment">/*e*/</span>)</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="comment">// Never throw an exception in a destructor</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="comment">//std::cout << e.what() << std::endl;</span></div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="_exception_8h.html#a09377ccaaa7b9131802787787c13c634">SQLITE_CPP_ASSERT</a>(<span class="keyword">false</span>);</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  }</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> }</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// Commit the transaction.</span></div>
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<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="class_s_q_lite_1_1_transaction.html#a359ed0e2e88fec83c90f513598e1b03f"> 44</a></span> <span class="keywordtype">void</span> <a class="code" href="class_s_q_lite_1_1_transaction.html#a359ed0e2e88fec83c90f513598e1b03f" title="Commit the transaction.">Transaction::commit</a>(<span class="keywordtype">void</span>) <span class="comment">// throw(SQLite::Exception)</span></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (<span class="keyword">false</span> == mbCommited)</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  {</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  mDatabase.<a class="code" href="class_s_q_lite_1_1_database.html#a0158bf527b79317679c9cf1e6daf1c43" title="Shortcut to execute one or multiple statements without results.">exec</a>(<span class="stringliteral">"COMMIT"</span>);</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  mbCommited = <span class="keyword">true</span>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">else</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">throw</span> <a class="code" href="class_s_q_lite_1_1_exception.html" title="Encapsulation of the error message from SQLite3, based on std::runtime_error.">SQLite::Exception</a>(<span class="stringliteral">"Transaction already commited"</span>);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> }</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> } <span class="comment">// namespace SQLite</span></div>
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<li class="footer">Generated on Sun Mar 10 2013 18:17:22 for SQLiteC++ by
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.3.1 </li>
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