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<title>&nbsp; Apache Ignite C++: ignite::transactions::Transactions Class Reference</title>
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<li class="navelem"><a class="el" href="namespaceignite.html">ignite</a></li><li class="navelem"><a class="el" href="namespaceignite_1_1transactions.html">transactions</a></li><li class="navelem"><a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a></li> </ul>
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<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="classignite_1_1transactions_1_1Transactions-members.html">List of all members</a> </div>
<div class="headertitle">
<div class="title">ignite::transactions::Transactions Class Reference</div> </div>
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<div class="contents">
<p>Transactions facade.
<a href="classignite_1_1transactions_1_1Transactions.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="core_2include_2ignite_2transactions_2transactions_8h_source.html">transactions.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a12d656ae8a3ef10e404d018a6fb2c20b"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a12d656ae8a3ef10e404d018a6fb2c20b">Transactions</a> (ignite::common::concurrent::SharedPointer&lt; impl::transactions::TransactionsImpl &gt; impl)</td></tr>
<tr class="memdesc:a12d656ae8a3ef10e404d018a6fb2c20b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <a href="classignite_1_1transactions_1_1Transactions.html#a12d656ae8a3ef10e404d018a6fb2c20b">More...</a><br /></td></tr>
<tr class="separator:a12d656ae8a3ef10e404d018a6fb2c20b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a04997af1676a73103ef6f5a3dd1ba57e"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a04997af1676a73103ef6f5a3dd1ba57e">Transactions</a> (const <a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp;other)</td></tr>
<tr class="memdesc:a04997af1676a73103ef6f5a3dd1ba57e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Copy constructor. <a href="classignite_1_1transactions_1_1Transactions.html#a04997af1676a73103ef6f5a3dd1ba57e">More...</a><br /></td></tr>
<tr class="separator:a04997af1676a73103ef6f5a3dd1ba57e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad48180fccd356ed2d0888889307b0899"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#ad48180fccd356ed2d0888889307b0899">operator=</a> (const <a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp;other)</td></tr>
<tr class="memdesc:ad48180fccd356ed2d0888889307b0899"><td class="mdescLeft">&#160;</td><td class="mdescRight">Assignment operator. <a href="classignite_1_1transactions_1_1Transactions.html#ad48180fccd356ed2d0888889307b0899">More...</a><br /></td></tr>
<tr class="separator:ad48180fccd356ed2d0888889307b0899"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acdd4c701c3140a8fecd953f49f6def07"><td class="memItemLeft" align="right" valign="top"><a id="acdd4c701c3140a8fecd953f49f6def07"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#acdd4c701c3140a8fecd953f49f6def07">~Transactions</a> ()</td></tr>
<tr class="memdesc:acdd4c701c3140a8fecd953f49f6def07"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor. <br /></td></tr>
<tr class="separator:acdd4c701c3140a8fecd953f49f6def07"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abe2520191cbde531706aa03e9cee821e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#abe2520191cbde531706aa03e9cee821e">GetTx</a> ()</td></tr>
<tr class="memdesc:abe2520191cbde531706aa03e9cee821e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get active transaction for the current thread. <a href="classignite_1_1transactions_1_1Transactions.html#abe2520191cbde531706aa03e9cee821e">More...</a><br /></td></tr>
<tr class="separator:abe2520191cbde531706aa03e9cee821e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a998ea64ae4f3aeacc85ee519f5146558"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a998ea64ae4f3aeacc85ee519f5146558">TxStart</a> ()</td></tr>
<tr class="memdesc:a998ea64ae4f3aeacc85ee519f5146558"><td class="mdescLeft">&#160;</td><td class="mdescRight">Start new transaction with default isolation, concurrency and timeout. <a href="classignite_1_1transactions_1_1Transactions.html#a998ea64ae4f3aeacc85ee519f5146558">More...</a><br /></td></tr>
<tr class="separator:a998ea64ae4f3aeacc85ee519f5146558"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a33ba4852b353263477e7a76c55cf6b09"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a33ba4852b353263477e7a76c55cf6b09">TxStart</a> (<a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;err)</td></tr>
<tr class="memdesc:a33ba4852b353263477e7a76c55cf6b09"><td class="mdescLeft">&#160;</td><td class="mdescRight">Start new transaction with default isolation, concurrency and timeout. <a href="classignite_1_1transactions_1_1Transactions.html#a33ba4852b353263477e7a76c55cf6b09">More...</a><br /></td></tr>
<tr class="separator:a33ba4852b353263477e7a76c55cf6b09"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a050067ea4d7f35bb4f84edf6101a7197"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a050067ea4d7f35bb4f84edf6101a7197">TxStart</a> (<a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a> concurrency, <a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a> isolation)</td></tr>
<tr class="memdesc:a050067ea4d7f35bb4f84edf6101a7197"><td class="mdescLeft">&#160;</td><td class="mdescRight">Starts new transaction with the specified concurrency and isolation. <a href="classignite_1_1transactions_1_1Transactions.html#a050067ea4d7f35bb4f84edf6101a7197">More...</a><br /></td></tr>
<tr class="separator:a050067ea4d7f35bb4f84edf6101a7197"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac58104f7e1affc8fd462426ca787ef9c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#ac58104f7e1affc8fd462426ca787ef9c">TxStart</a> (<a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a> concurrency, <a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a> isolation, <a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;err)</td></tr>
<tr class="memdesc:ac58104f7e1affc8fd462426ca787ef9c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Starts new transaction with the specified concurrency and isolation. <a href="classignite_1_1transactions_1_1Transactions.html#ac58104f7e1affc8fd462426ca787ef9c">More...</a><br /></td></tr>
<tr class="separator:ac58104f7e1affc8fd462426ca787ef9c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0d0bbfcec4caaa4dc0c5d7727c96c901"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a0d0bbfcec4caaa4dc0c5d7727c96c901">TxStart</a> (<a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a> concurrency, <a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a> isolation, int64_t timeout, int32_t txSize)</td></tr>
<tr class="memdesc:a0d0bbfcec4caaa4dc0c5d7727c96c901"><td class="mdescLeft">&#160;</td><td class="mdescRight">Starts transaction with specified isolation, concurrency, timeout, and number of participating entries. <a href="classignite_1_1transactions_1_1Transactions.html#a0d0bbfcec4caaa4dc0c5d7727c96c901">More...</a><br /></td></tr>
<tr class="separator:a0d0bbfcec4caaa4dc0c5d7727c96c901"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aeefda9d200a313a54c23b48c9e0e8bd0"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#aeefda9d200a313a54c23b48c9e0e8bd0">TxStart</a> (<a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a> concurrency, <a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a> isolation, int64_t timeout, int32_t txSize, <a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;err)</td></tr>
<tr class="memdesc:aeefda9d200a313a54c23b48c9e0e8bd0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Start new transaction. <a href="classignite_1_1transactions_1_1Transactions.html#aeefda9d200a313a54c23b48c9e0e8bd0">More...</a><br /></td></tr>
<tr class="separator:aeefda9d200a313a54c23b48c9e0e8bd0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4681b8929dda5227b31e2935c5094144"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1TransactionMetrics.html">TransactionMetrics</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a4681b8929dda5227b31e2935c5094144">GetMetrics</a> ()</td></tr>
<tr class="memdesc:a4681b8929dda5227b31e2935c5094144"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get transaction metrics. <a href="classignite_1_1transactions_1_1Transactions.html#a4681b8929dda5227b31e2935c5094144">More...</a><br /></td></tr>
<tr class="separator:a4681b8929dda5227b31e2935c5094144"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a449f6900c797de1f2b1d771a12c00ac9"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classignite_1_1transactions_1_1TransactionMetrics.html">TransactionMetrics</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classignite_1_1transactions_1_1Transactions.html#a449f6900c797de1f2b1d771a12c00ac9">GetMetrics</a> (<a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;err)</td></tr>
<tr class="memdesc:a449f6900c797de1f2b1d771a12c00ac9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get transaction metrics. <a href="classignite_1_1transactions_1_1Transactions.html#a449f6900c797de1f2b1d771a12c00ac9">More...</a><br /></td></tr>
<tr class="separator:a449f6900c797de1f2b1d771a12c00ac9"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Transactions facade. </p>
<p>This class is implemented as a reference to an implementation so copying of this class instance will only create another reference to the same underlying object. Underlying object will be released automatically once all the instances are destructed. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a12d656ae8a3ef10e404d018a6fb2c20b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a12d656ae8a3ef10e404d018a6fb2c20b">&#9670;&nbsp;</a></span>Transactions() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">ignite::transactions::Transactions::Transactions </td>
<td>(</td>
<td class="paramtype">ignite::common::concurrent::SharedPointer&lt; impl::transactions::TransactionsImpl &gt;&#160;</td>
<td class="paramname"><em>impl</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Constructor. </p>
<p>Internal method. Should not be used by user.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">impl</td><td>Implementation. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a04997af1676a73103ef6f5a3dd1ba57e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a04997af1676a73103ef6f5a3dd1ba57e">&#9670;&nbsp;</a></span>Transactions() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">ignite::transactions::Transactions::Transactions </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp;&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Copy constructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>Other instance. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
<a id="a4681b8929dda5227b31e2935c5094144"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4681b8929dda5227b31e2935c5094144">&#9670;&nbsp;</a></span>GetMetrics() <span class="overload">[1/2]</span></h2>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1TransactionMetrics.html">TransactionMetrics</a> ignite::transactions::Transactions::GetMetrics </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get transaction metrics. </p>
<dl class="section return"><dt>Returns</dt><dd>Metrics instance. </dd></dl>
</div>
</div>
<a id="a449f6900c797de1f2b1d771a12c00ac9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a449f6900c797de1f2b1d771a12c00ac9">&#9670;&nbsp;</a></span>GetMetrics() <span class="overload">[2/2]</span></h2>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1TransactionMetrics.html">TransactionMetrics</a> ignite::transactions::Transactions::GetMetrics </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;&#160;</td>
<td class="paramname"><em>err</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get transaction metrics. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">err</td><td>Error. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Metrics instance. Returned instance is not valid if an error occurred during the operation. </dd></dl>
</div>
</div>
<a id="abe2520191cbde531706aa03e9cee821e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abe2520191cbde531706aa03e9cee821e">&#9670;&nbsp;</a></span>GetTx()</h2>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a> ignite::transactions::Transactions::GetTx </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Get active transaction for the current thread. </p>
<dl class="section return"><dt>Returns</dt><dd>Active transaction for current thread. Returned instance is not valid if there is no active transaction for the thread. </dd></dl>
</div>
</div>
<a id="ad48180fccd356ed2d0888889307b0899"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad48180fccd356ed2d0888889307b0899">&#9670;&nbsp;</a></span>operator=()</h2>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp; ignite::transactions::Transactions::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classignite_1_1transactions_1_1Transactions.html">Transactions</a> &amp;&#160;</td>
<td class="paramname"><em>other</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Assignment operator. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">other</td><td>Other instance. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>This. </dd></dl>
</div>
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<a id="a998ea64ae4f3aeacc85ee519f5146558"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a998ea64ae4f3aeacc85ee519f5146558">&#9670;&nbsp;</a></span>TxStart() <span class="overload">[1/6]</span></h2>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a> ignite::transactions::Transactions::TxStart </td>
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<p>Start new transaction with default isolation, concurrency and timeout. </p>
<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
</div>
</div>
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<td class="paramname"><em>err</em></td><td>)</td>
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<p>Start new transaction with default isolation, concurrency and timeout. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">err</td><td>Error. </td></tr>
</table>
</dd>
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<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a> ignite::transactions::Transactions::TxStart </td>
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<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a>&#160;</td>
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<p>Starts new transaction with the specified concurrency and isolation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">concurrency</td><td>Concurrency. </td></tr>
<tr><td class="paramname">isolation</td><td>Isolation. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
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<td class="paramname"><em>concurrency</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a>&#160;</td>
<td class="paramname"><em>isolation</em>, </td>
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<td class="paramtype"><a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;&#160;</td>
<td class="paramname"><em>err</em>&#160;</td>
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<p>Starts new transaction with the specified concurrency and isolation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">concurrency</td><td>Concurrency. </td></tr>
<tr><td class="paramname">isolation</td><td>Isolation. </td></tr>
<tr><td class="paramname">err</td><td>Error. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
</div>
</div>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a> ignite::transactions::Transactions::TxStart </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a>&#160;</td>
<td class="paramname"><em>concurrency</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a>&#160;</td>
<td class="paramname"><em>isolation</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t&#160;</td>
<td class="paramname"><em>timeout</em>, </td>
</tr>
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<td class="paramkey"></td>
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<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>txSize</em>&#160;</td>
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<p>Starts transaction with specified isolation, concurrency, timeout, and number of participating entries. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">concurrency</td><td>Concurrency. </td></tr>
<tr><td class="paramname">isolation</td><td>Isolation. </td></tr>
<tr><td class="paramname">timeout</td><td>Timeout. Zero if for infinite timeout. </td></tr>
<tr><td class="paramname">txSize</td><td>Number of entries participating in transaction (may be approximate). </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
</div>
</div>
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<td class="memname"><a class="el" href="classignite_1_1transactions_1_1Transaction.html">Transaction</a> ignite::transactions::Transactions::TxStart </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionConcurrency.html#ae4a4021eb1bbb6d2acdaad1defeb469a">TransactionConcurrency::Type</a>&#160;</td>
<td class="paramname"><em>concurrency</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structignite_1_1transactions_1_1TransactionIsolation.html#a3ac24463ce4e1f63186a974c33c6b3e3">TransactionIsolation::Type</a>&#160;</td>
<td class="paramname"><em>isolation</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int64_t&#160;</td>
<td class="paramname"><em>timeout</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int32_t&#160;</td>
<td class="paramname"><em>txSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classignite_1_1IgniteError.html">IgniteError</a> &amp;&#160;</td>
<td class="paramname"><em>err</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p>Start new transaction. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">concurrency</td><td>Concurrency. </td></tr>
<tr><td class="paramname">isolation</td><td>Isolation. </td></tr>
<tr><td class="paramname">timeout</td><td>Timeout. Zero if for infinite timeout. </td></tr>
<tr><td class="paramname">txSize</td><td>Number of entries participating in transaction (may be approximate). </td></tr>
<tr><td class="paramname">err</td><td>Error. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>New transaction instance. </dd></dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="core_2include_2ignite_2transactions_2transactions_8h_source.html">core/include/ignite/transactions/transactions.h</a></li>
<li>transactions.cpp</li>
</ul>
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