<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!-- NewPage --> <html lang="en"> <head> <!-- Generated by javadoc (version 1.7.0_75) on Fri May 13 13:32:16 PDT 2016 --> <title>LockStats (Oracle - Berkeley DB Java API)</title> <meta name="date" content="2016-05-13"> <link rel="stylesheet" type="text/css" href="../../../style.css" title="Style"> </head> <body> <script type="text/javascript"><!-- if (location.href.indexOf('is-external=true') == -1) { parent.document.title="LockStats (Oracle - Berkeley DB Java API)"; } //--> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript> <!-- ========= START OF TOP NAVBAR ======= --> <div class="topNav"><a name="navbar_top"> <!-- --> </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../../overview-summary.html">Overview</a></li> <li><a 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<ul class="inheritance"> <li>com.sleepycat.db.LockStats</li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <hr> <br> <pre>public class <span class="strong">LockStats</span> extends java.lang.Object</pre> <div class="block">Lock statistics for a database environment.</div> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList"> <!-- ========== METHOD SUMMARY =========== --> <ul class="blockList"> <li class="blockList"><a name="method_summary"> <!-- --> </a> <h3>Method Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> <caption><span>Methods</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Method and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getCurMaxId()">getCurMaxId</a></strong>()</code> <div class="block">The current maximum unused locker ID.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getHashLen()">getHashLen</a></strong>()</code> <div class="block">Maximum length of a lock hash bucket.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getId()">getId</a></strong>()</code> <div class="block">The last allocated locker ID.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getInitlockers()">getInitlockers</a></strong>()</code> <div class="block">The initial number of lockers allocated in lock table.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getInitlocks()">getInitlocks</a></strong>()</code> <div class="block">The initial number of locks allocated in the lock table.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getInitobjects()">getInitobjects</a></strong>()</code> <div class="block">The initial number of lock objects allocated in lock table.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockers()">getLockers</a></strong>()</code> <div class="block">The current number of lockers allocated in lock table.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockersNowait()">getLockersNowait</a></strong>()</code> <div class="block">The number of requests to allocate or deallocate a locker for which the thread of control did not wait.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockersWait()">getLockersWait</a></strong>()</code> <div class="block">The number of requests to allocate or deallocate a locker for which the thread of control waited.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockNowait()">getLockNowait</a></strong>()</code> <div class="block">The number of lock requests not immediately available due to conflicts, for which the thread of control did not wait.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLocks()">getLocks</a></strong>()</code> <div class="block">The current number of locks allocated in lock table.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLocksteals()">getLocksteals</a></strong>()</code> <div class="block">The maximum number of locks stolen by an empty partition.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockTimeout()">getLockTimeout</a></strong>()</code> <div class="block">Lock timeout value.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getLockWait()">getLockWait</a></strong>()</code> <div class="block">The number of lock requests not immediately available due to conflicts, for which the thread of control waited.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxHlocks()">getMaxHlocks</a></strong>()</code> <div class="block">The maximum number of locks in any hash bucket at any one time.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxHobjects()">getMaxHobjects</a></strong>()</code> <div class="block">The maximum number of objects in any hash bucket at any one time.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxLockers()">getMaxLockers</a></strong>()</code> <div class="block">The maximum number of lockers possible.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxLocks()">getMaxLocks</a></strong>()</code> <div class="block">The maximum number of locks possible.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxLsteals()">getMaxLsteals</a></strong>()</code> <div class="block">The maximum number of lock steals for any one partition.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxNlockers()">getMaxNlockers</a></strong>()</code> <div class="block">The maximum number of lockers at any one time.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxNlocks()">getMaxNlocks</a></strong>()</code> <div class="block">The maximum number of locks at any one time.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxNobjects()">getMaxNobjects</a></strong>()</code> <div class="block">The maximum number of lock objects at any one time.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxObjects()">getMaxObjects</a></strong>()</code> <div class="block">The maximum number of lock objects possible.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getMaxOsteals()">getMaxOsteals</a></strong>()</code> <div class="block">The maximum number of object steals for any one partition.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNobjects()">getNobjects</a></strong>()</code> <div class="block">The number of current lock objects.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumDeadlocks()">getNumDeadlocks</a></strong>()</code> <div class="block">The number of deadlocks.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumDowngrade()">getNumDowngrade</a></strong>()</code> <div class="block">The total number of locks downgraded.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumLockers()">getNumLockers</a></strong>()</code> <div class="block">The number of current lockers.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumLockersHit()">getNumLockersHit</a></strong>()</code> <div class="block">The number of hits in the thread locker cache.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumLockersReused()">getNumLockersReused</a></strong>()</code> <div class="block">Total number of lockers reused.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumLocks()">getNumLocks</a></strong>()</code> <div class="block">The number of current locks.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumLockTimeouts()">getNumLockTimeouts</a></strong>()</code> <div class="block">The number of lock requests that have timed out.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumModes()">getNumModes</a></strong>()</code> <div class="block">The number of lock modes.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumReleases()">getNumReleases</a></strong>()</code> <div class="block">The total number of locks released.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumRequests()">getNumRequests</a></strong>()</code> <div class="block">The total number of locks requested.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumTxnTimeouts()">getNumTxnTimeouts</a></strong>()</code> <div class="block">The number of transactions that have timed out.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getNumUpgrade()">getNumUpgrade</a></strong>()</code> <div class="block">The total number of locks upgraded.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getObjects()">getObjects</a></strong>()</code> <div class="block">The current number of lock objects allocated in lock table.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getObjectsteals()">getObjectsteals</a></strong>()</code> <div class="block">The maximum number of objects stolen by an empty partition.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getObjsNowait()">getObjsNowait</a></strong>()</code> <div class="block">The number of requests to allocate or deallocate an object for which the thread of control did not wait.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getObjsWait()">getObjsWait</a></strong>()</code> <div class="block">The number of requests to allocate or deallocate an object for which the thread of control waited.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getPartitions()">getPartitions</a></strong>()</code> <div class="block">The number of lock table partitions.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getPartMaxNowait()">getPartMaxNowait</a></strong>()</code> <div class="block">The number of times that a thread of control was able to obtain any one lock partition mutex without waiting.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getPartMaxWait()">getPartMaxWait</a></strong>()</code> <div class="block">The maximum number of times that a thread of control was forced to wait before obtaining any one lock partition mutex.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getPartNowait()">getPartNowait</a></strong>()</code> <div class="block">The number of times that a thread of control was able to obtain a lock partition mutex without waiting.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getPartWait()">getPartWait</a></strong>()</code> <div class="block">The number of times that a thread of control was forced to wait before obtaining a lock partition mutex.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getRegionNowait()">getRegionNowait</a></strong>()</code> <div class="block">The number of times that a thread of control was able to obtain the lock region mutex without waiting.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getRegionWait()">getRegionWait</a></strong>()</code> <div class="block">The number of times that a thread of control was forced to wait before obtaining the lock region mutex.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getRegSize()">getRegSize</a></strong>()</code> <div class="block">The size of the lock region.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getTableSize()">getTableSize</a></strong>()</code> <div class="block">The size of object hash table.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#getTxnTimeout()">getTxnTimeout</a></strong>()</code> <div class="block">Transaction timeout value.</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>java.lang.String</code></td> <td class="colLast"><code><strong><a href="../../../com/sleepycat/db/LockStats.html#toString()">toString</a></strong>()</code> <div class="block">For convenience, the LockStats class has a toString method that lists all the data fields.</div> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> <!-- --> </a> <h3>Methods inherited from class java.lang.Object</h3> <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> </ul> </li> </ul> </li> </ul> </div> <div class="details"> <ul class="blockList"> <li class="blockList"> <!-- ============ METHOD DETAIL ========== --> <ul class="blockList"> <li class="blockList"><a name="method_detail"> <!-- --> </a> <h3>Method Detail</h3> <a name="getId()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getId</h4> <pre>public int getId()</pre> <div class="block">The last allocated locker ID.</div> </li> </ul> <a name="getCurMaxId()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getCurMaxId</h4> <pre>public int getCurMaxId()</pre> <div class="block">The current maximum unused locker ID.</div> </li> </ul> <a name="getInitlocks()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getInitlocks</h4> <pre>public int getInitlocks()</pre> <div class="block">The initial number of locks allocated in the lock table.</div> </li> </ul> <a name="getInitlockers()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getInitlockers</h4> <pre>public int getInitlockers()</pre> <div class="block">The initial number of lockers allocated in lock table.</div> </li> </ul> <a name="getInitobjects()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getInitobjects</h4> <pre>public int getInitobjects()</pre> <div class="block">The initial number of lock objects allocated in lock table.</div> </li> </ul> <a name="getLocks()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getLocks</h4> <pre>public int getLocks()</pre> <div class="block">The current number of locks allocated in lock table.</div> </li> </ul> <a name="getLockers()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getLockers</h4> <pre>public int getLockers()</pre> <div class="block">The current number of lockers allocated in lock table.</div> </li> </ul> <a name="getObjects()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getObjects</h4> <pre>public int getObjects()</pre> <div class="block">The current number of lock objects allocated in lock table.</div> </li> </ul> <a name="getMaxLocks()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getMaxLocks</h4> <pre>public int getMaxLocks()</pre> <div class="block">The maximum number of locks possible.</div> </li> </ul> <a name="getMaxLockers()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getMaxLockers</h4> <pre>public int getMaxLockers()</pre> <div class="block">The maximum number of lockers possible.</div> </li> </ul> <a name="getMaxObjects()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getMaxObjects</h4> <pre>public int getMaxObjects()</pre> <div class="block">The maximum number of lock objects possible.</div> </li> </ul> <a name="getPartitions()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getPartitions</h4> <pre>public int getPartitions()</pre> <div class="block">The number of lock table partitions.</div> </li> </ul> <a name="getTableSize()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getTableSize</h4> <pre>public int getTableSize()</pre> <div class="block">The size of object hash table.</div> </li> </ul> <a name="getNumModes()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getNumModes</h4> <pre>public int getNumModes()</pre> <div class="block">The number of lock modes.</div> </li> </ul> <a name="getNumLockers()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getNumLockers</h4> <pre>public int getNumLockers()</pre> <div class="block">The number of current lockers.</div> </li> </ul> <a name="getNumLocks()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getNumLocks</h4> <pre>public int getNumLocks()</pre> <div class="block">The number of current locks.</div> </li> </ul> <a name="getMaxNlocks()"> <!-- --> </a> <ul class="blockList"> <li class="blockList"> <h4>getMaxNlocks</h4> <pre>public int getMaxNlocks()</pre> <div class="block">The maximum number of locks at any one time. 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class="blockListLast"> <li class="blockList"> <h4>toString</h4> <pre>public java.lang.String toString()</pre> <div class="block">For convenience, the LockStats class has a toString method that lists all the data fields.</div> <dl> <dt><strong>Overrides:</strong></dt> <dd><code>toString</code> in class <code>java.lang.Object</code></dd> </dl> </li> </ul> </li> </ul> </li> </ul> </div> </div> <!-- ========= END OF CLASS DATA ========= --> <!-- ======= START OF BOTTOM NAVBAR ====== --> <div class="bottomNav"><a name="navbar_bottom"> <!-- --> </a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow"> <!-- --> </a> <ul class="navList" title="Navigation"> <li><a href="../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/LockStats.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a 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