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<div class="subTitle">org.apache.ignite</div>
<h2 title="Interface IgniteTransactions" class="title">Interface IgniteTransactions</h2>
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<pre>public interface <span class="typeNameLabel">IgniteTransactions</span></pre>
<div class="block">Transactions facade provides ACID-compliant semantic when working with caches. You can
create a transaction when working with one cache or across multiple caches. Caches with
different cache modes, like <a href="../../../org/apache/ignite/cache/CacheMode.html#PARTITIONED"><code>PARTITIONED</code></a> or
<a href="../../../org/apache/ignite/cache/CacheMode.html#REPLICATED"><code>REPLICATED</code></a>, can also participate in the same transaction.
<p>
Transactions are <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang"><code>AutoCloseable</code></a>, so they will automatically rollback unless
explicitly committed.
<p>
Here is an example of a transaction:
<pre class="brush:java">
try (Transaction tx = Ignition.ignite().transactions().txStart()) {
Account acct = cache.get(acctId);
// Current balance.
double balance = acct.getBalance();
// Deposit $100 into account.
acct.setBalance(balance + 100);
// Store updated account in cache.
cache.put(acctId, acct);
tx.commit();
}
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#localActiveTransactions--">localActiveTransactions</a></span>()</code>
<div class="block">Returns a list of active transactions initiated by this node.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/transactions/TransactionMetrics.html" title="interface in org.apache.ignite.transactions">TransactionMetrics</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#metrics--">metrics</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#resetMetrics--">resetMetrics</a></span>()</code>
<div class="block">Resets transaction metrics.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#tx--">tx</a></span>()</code>
<div class="block">Gets transaction started by this thread or <code>null</code> if this thread does
not have a transaction.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#txStart--">txStart</a></span>()</code>
<div class="block">Starts transaction with default isolation, concurrency, timeout, and invalidation policy.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#txStart-org.apache.ignite.transactions.TransactionConcurrency-org.apache.ignite.transactions.TransactionIsolation-">txStart</a></span>(<a href="../../../org/apache/ignite/transactions/TransactionConcurrency.html" title="enum in org.apache.ignite.transactions">TransactionConcurrency</a>&nbsp;concurrency,
<a href="../../../org/apache/ignite/transactions/TransactionIsolation.html" title="enum in org.apache.ignite.transactions">TransactionIsolation</a>&nbsp;isolation)</code>
<div class="block">Starts new transaction with the specified concurrency and isolation.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#txStart-org.apache.ignite.transactions.TransactionConcurrency-org.apache.ignite.transactions.TransactionIsolation-long-int-">txStart</a></span>(<a href="../../../org/apache/ignite/transactions/TransactionConcurrency.html" title="enum in org.apache.ignite.transactions">TransactionConcurrency</a>&nbsp;concurrency,
<a href="../../../org/apache/ignite/transactions/TransactionIsolation.html" title="enum in org.apache.ignite.transactions">TransactionIsolation</a>&nbsp;isolation,
long&nbsp;timeout,
int&nbsp;txSize)</code>
<div class="block">Starts transaction with specified isolation, concurrency, timeout, invalidation flag,
and number of participating entries.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../org/apache/ignite/IgniteTransactions.html" title="interface in org.apache.ignite">IgniteTransactions</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/ignite/IgniteTransactions.html#withLabel-java.lang.String-">withLabel</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;lb)</code>
<div class="block">Returns instance of Ignite Transactions to mark a transaction with a special label.</div>
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<h4>txStart</h4>
<pre><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&nbsp;txStart()
throws <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></pre>
<div class="block">Starts transaction with default isolation, concurrency, timeout, and invalidation policy.
All defaults are set in <a href="../../../org/apache/ignite/configuration/TransactionConfiguration.html" title="class in org.apache.ignite.configuration"><code>TransactionConfiguration</code></a> at startup.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>New transaction</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - If transaction is already started by this thread.</dd>
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<h4>txStart</h4>
<pre><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&nbsp;txStart(<a href="../../../org/apache/ignite/transactions/TransactionConcurrency.html" title="enum in org.apache.ignite.transactions">TransactionConcurrency</a>&nbsp;concurrency,
<a href="../../../org/apache/ignite/transactions/TransactionIsolation.html" title="enum in org.apache.ignite.transactions">TransactionIsolation</a>&nbsp;isolation)</pre>
<div class="block">Starts new transaction with the specified concurrency and isolation.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>concurrency</code> - Concurrency.</dd>
<dd><code>isolation</code> - Isolation.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>New transaction.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - If transaction is already started by this thread.</dd>
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<h4>txStart</h4>
<pre><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&nbsp;txStart(<a href="../../../org/apache/ignite/transactions/TransactionConcurrency.html" title="enum in org.apache.ignite.transactions">TransactionConcurrency</a>&nbsp;concurrency,
<a href="../../../org/apache/ignite/transactions/TransactionIsolation.html" title="enum in org.apache.ignite.transactions">TransactionIsolation</a>&nbsp;isolation,
long&nbsp;timeout,
int&nbsp;txSize)</pre>
<div class="block">Starts transaction with specified isolation, concurrency, timeout, invalidation flag,
and number of participating entries.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>concurrency</code> - Concurrency.</dd>
<dd><code>isolation</code> - Isolation.</dd>
<dd><code>timeout</code> - Timeout.</dd>
<dd><code>txSize</code> - Number of entries participating in transaction (may be approximate).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>New transaction.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - If transaction is already started by this thread.</dd>
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<h4>tx</h4>
<pre><a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&nbsp;tx()</pre>
<div class="block">Gets transaction started by this thread or <code>null</code> if this thread does
not have a transaction.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Transaction started by this thread or <code>null</code> if this thread
does not have a transaction.</dd>
</dl>
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<h4>metrics</h4>
<pre><a href="../../../org/apache/ignite/transactions/TransactionMetrics.html" title="interface in org.apache.ignite.transactions">TransactionMetrics</a>&nbsp;metrics()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Transaction metrics.</dd>
</dl>
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<h4>resetMetrics</h4>
<pre>void&nbsp;resetMetrics()</pre>
<div class="block">Resets transaction metrics.</div>
</li>
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<h4>localActiveTransactions</h4>
<pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;<a href="../../../org/apache/ignite/transactions/Transaction.html" title="interface in org.apache.ignite.transactions">Transaction</a>&gt;&nbsp;localActiveTransactions()</pre>
<div class="block">Returns a list of active transactions initiated by this node.
<p>
Note: returned transaction handle will only support getters, <a href="../../../org/apache/ignite/transactions/Transaction.html#close--"><code>Transaction.close()</code></a>,
<a href="../../../org/apache/ignite/transactions/Transaction.html#rollback--"><code>Transaction.rollback()</code></a>, <a href="../../../org/apache/ignite/transactions/Transaction.html#rollbackAsync--"><code>Transaction.rollbackAsync()</code></a> methods.
Trying to invoke other methods will lead to UnsupportedOperationException.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>Transactions started on local node.</dd>
</dl>
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<h4>withLabel</h4>
<pre><a href="../../../org/apache/ignite/IgniteTransactions.html" title="interface in org.apache.ignite">IgniteTransactions</a>&nbsp;withLabel(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;lb)</pre>
<div class="block">Returns instance of Ignite Transactions to mark a transaction with a special label.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>lb</code> - label.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>This</code> for chaining.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if label is null.</dd>
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<p class="legalCopy"><small><table width="100%" border="0" cellspacing=0 cellpadding=0 style="padding: 5px"> <tr> <td> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <a target=_blank href="https://ignite.apache.org"><nobr>2018 Copyright &#169; Apache Software Foundation</nobr></a> </td> </tr> </tbody> </table> </td> <td width="100%" align="right" valign="center"> <a href="https://twitter.com/ApacheIgnite" class="twitter-follow-button" data-show-count="false" data-size="large">Follow @ApacheIgnite</a> </td> </tr> <tr> <td colspan="2" valign="top" align="left"> <table style="padding-left: 0; margin: 0"> <tbody style="padding: 0; margin: 0"> <tr style="padding: 0; margin: 0"> <td> <b>Ignite Fabric</b> </td> <td>:&nbsp;&nbsp; ver. <strong>2.6.0</strong> </td> </tr> <tr style="padding: 0; margin: 0"> <td> <b>Release Date</b> </td> <td>:&nbsp;&nbsp; July 10 2018 </td> </tr> </tbody> </table> </td> </tr> </table></small></p>
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