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<h2 title="Interface TransactionMonitor" class="title">Interface TransactionMonitor</h2>
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<pre>public interface <span class="strong">TransactionMonitor</span></pre>
<div class="block">Is notified as transactions enter and exit. Implementation must be thread-safe.</div>
<dl><dt><span class="strong">Author:</span></dt>
  <dd>Brian S O'Neill</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../com/amazon/carbonado/txn/TransactionManager.html" title="class in com.amazon.carbonado.txn"><code>TransactionManager</code></a></dd></dl>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/txn/TransactionMonitor.html#entered(com.amazon.carbonado.Transaction, com.amazon.carbonado.Transaction)">entered</a></strong>(<a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;entered,
       <a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;parent)</code>
<div class="block">Called by a thread which has just entered a transaction.</div>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/amazon/carbonado/txn/TransactionMonitor.html#exited(com.amazon.carbonado.Transaction, com.amazon.carbonado.Transaction)">exited</a></strong>(<a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;exited,
      <a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;active)</code>
<div class="block">Called by a thread which has just exited a transaction.</div>
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<h4>entered</h4>
<pre>void&nbsp;entered(<a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;entered,
           <a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;parent)</pre>
<div class="block">Called by a thread which has just entered a transaction.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>entered</code> - transaction just entered</dd><dd><code>parent</code> - optional parent of transaction; is null for top level transactions</dd></dl>
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<h4>exited</h4>
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          <a href="../../../../com/amazon/carbonado/Transaction.html" title="interface in com.amazon.carbonado">Transaction</a>&nbsp;active)</pre>
<div class="block">Called by a thread which has just exited a transaction. Only the first
 invocation of the exit method is passed to this monitor.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>exited</code> - transaction just exited</dd><dd><code>active</code> - optional transaction which is now active; is null if the
 outermost transaction scope exited</dd></dl>
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