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| <div class="subTitle">org.apache.hadoop.hbase.procedure2</div> |
| <h2 title="Class LockAndQueue" class="title">Class LockAndQueue</h2> |
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| <ul class="inheritance"> |
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| <li>org.apache.hadoop.hbase.procedure2.LockAndQueue</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.47">LockAndQueue</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> |
| implements <a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></pre> |
| <div class="block">Locking for mutual exclusion between procedures. Used only by procedure framework internally. |
| <a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html" title="class in org.apache.hadoop.hbase.procedure2"><code>LockAndQueue</code></a> has two purposes: |
| <ol> |
| <li>Acquire/release exclusive/shared locks.</li> |
| <li>Maintains a list of procedures waiting on this lock. <a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html" title="class in org.apache.hadoop.hbase.procedure2"><code>LockAndQueue</code></a> extends |
| <a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureDeque.html" title="class in org.apache.hadoop.hbase.procedure2"><code>ProcedureDeque</code></a> class. Blocked Procedures are added to our super Deque. Using inheritance |
| over composition to keep the Deque of waiting Procedures is unusual, but we do it this way |
| because in certain cases, there will be millions of regions. This layout uses less memory. |
| </ol> |
| <p/> |
| NOT thread-safe. Needs external concurrency control: e.g. uses in MasterProcedureScheduler are |
| guarded by schedLock(). <br/> |
| There is no need of 'volatile' keyword for member variables because of memory synchronization |
| guarantees of locks (see 'Memory Synchronization', |
| http://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Lock.html) <br/> |
| We do not implement Lock interface because we need exclusive and shared locking, and also because |
| try-lock functions require procedure id. <br/> |
| We do not use ReentrantReadWriteLock directly because of its high memory overhead.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Field and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#exclusiveLockOwnerProcedure">exclusiveLockOwnerProcedure</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#procedureRetriever">procedureRetriever</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureDeque.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureDeque</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#queue">queue</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#sharedLock">sharedLock</a></span></code> </td> |
| </tr> |
| </table> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#LockAndQueue-java.util.function.Function-">LockAndQueue</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?>> procedureRetriever)</code> </td> |
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| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#addLast-org.apache.hadoop.hbase.procedure2.Procedure-">addLast</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.html?is-external=true" title="class or interface in java.util.stream">Stream</a><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#filterWaitingQueue-java.util.function.Predicate-">filterWaitingQueue</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>> predicate)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#getExclusiveLockOwnerProcedure--">getExclusiveLockOwnerProcedure</a></span>()</code> |
| <div class="block">Get the procedure which holds the exclusive lock.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#getSharedLockCount--">getSharedLockCount</a></span>()</code> |
| <div class="block">Get the number of procedures which hold the shared lock.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#hasExclusiveLock--">hasExclusiveLock</a></span>()</code> |
| <div class="block">Whether the exclusive lock has been held.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#hasLockAccess-org.apache.hadoop.hbase.procedure2.Procedure-">hasLockAccess</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</code> |
| <div class="block">Return true if the procedure itself holds the exclusive lock, or any ancestors of the give |
| procedure hold the exclusive lock.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#isWaitingQueueEmpty--">isWaitingQueueEmpty</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#releaseExclusiveLock-org.apache.hadoop.hbase.procedure2.Procedure-">releaseExclusiveLock</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</code> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#releaseSharedLock--">releaseSharedLock</a></span>()</code> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#removeFirst--">removeFirst</a></span>()</code> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#toString--">toString</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#tryExclusiveLock-org.apache.hadoop.hbase.procedure2.Procedure-">tryExclusiveLock</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</code> </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#trySharedLock-org.apache.hadoop.hbase.procedure2.Procedure-">trySharedLock</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</code> </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockAndQueue.html#wakeWaitingProcedures-org.apache.hadoop.hbase.procedure2.ProcedureScheduler-">wakeWaitingProcedures</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureScheduler.html" title="interface in org.apache.hadoop.hbase.procedure2">ProcedureScheduler</a> scheduler)</code> </td> |
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| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <h3>Methods inherited from interface org.apache.hadoop.hbase.procedure2.<a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></h3> |
| <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#getExclusiveLockProcIdOwner--">getExclusiveLockProcIdOwner</a>, <a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#isLocked--">isLocked</a></code></li> |
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| <a name="procedureRetriever"> |
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| <h4>procedureRetriever</h4> |
| <pre>private final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?>> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.49">procedureRetriever</a></pre> |
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| <h4>queue</h4> |
| <pre>private final <a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureDeque.html" title="class in org.apache.hadoop.hbase.procedure2">ProcedureDeque</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.50">queue</a></pre> |
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| <h4>exclusiveLockOwnerProcedure</h4> |
| <pre>private <a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.51">exclusiveLockOwnerProcedure</a></pre> |
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| <h4>sharedLock</h4> |
| <pre>private int <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.52">sharedLock</a></pre> |
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| <h4>LockAndQueue</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.58">LockAndQueue</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Function.html?is-external=true" title="class or interface in java.util.function">Function</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>,<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?>> procedureRetriever)</pre> |
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| <h4>hasExclusiveLock</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.63">hasExclusiveLock</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#hasExclusiveLock--">LockStatus</a></code></span></div> |
| <div class="block">Whether the exclusive lock has been held.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#hasExclusiveLock--">hasExclusiveLock</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></code></dd> |
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| <h4>hasLockAccess</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.68">hasLockAccess</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#hasLockAccess-org.apache.hadoop.hbase.procedure2.Procedure-">LockStatus</a></code></span></div> |
| <div class="block">Return true if the procedure itself holds the exclusive lock, or any ancestors of the give |
| procedure hold the exclusive lock.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#hasLockAccess-org.apache.hadoop.hbase.procedure2.Procedure-">hasLockAccess</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></code></dd> |
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| <h4>getExclusiveLockOwnerProcedure</h4> |
| <pre>public <a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.96">getExclusiveLockOwnerProcedure</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#getExclusiveLockOwnerProcedure--">LockStatus</a></code></span></div> |
| <div class="block">Get the procedure which holds the exclusive lock.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#getExclusiveLockOwnerProcedure--">getExclusiveLockOwnerProcedure</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></code></dd> |
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| <h4>getSharedLockCount</h4> |
| <pre>public int <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.101">getSharedLockCount</a>()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#getSharedLockCount--">LockStatus</a></code></span></div> |
| <div class="block">Get the number of procedures which hold the shared lock.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html#getSharedLockCount--">getSharedLockCount</a></code> in interface <code><a href="../../../../../org/apache/hadoop/hbase/procedure2/LockStatus.html" title="interface in org.apache.hadoop.hbase.procedure2">LockStatus</a></code></dd> |
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| <h4>trySharedLock</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.112">trySharedLock</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether we have succesfully acquired the shared lock.</dd> |
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| <h4>releaseSharedLock</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.126">releaseSharedLock</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether we should wake the procedures waiting on the lock here.</dd> |
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| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.133">tryExclusiveLock</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</pre> |
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| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.144">releaseExclusiveLock</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> proc)</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether we should wake the procedures waiting on the lock here.</dd> |
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| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.162">isWaitingQueueEmpty</a>()</pre> |
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| <pre>public <a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a><?> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.166">removeFirst</a>()</pre> |
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| <pre>public int <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.174">wakeWaitingProcedures</a>(<a href="../../../../../org/apache/hadoop/hbase/procedure2/ProcedureScheduler.html" title="interface in org.apache.hadoop.hbase.procedure2">ProcedureScheduler</a> scheduler)</pre> |
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| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/stream/Stream.html?is-external=true" title="class or interface in java.util.stream">Stream</a><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure2/LockAndQueue.html#line.184">filterWaitingQueue</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/function/Predicate.html?is-external=true" title="class or interface in java.util.function">Predicate</a><<a href="../../../../../org/apache/hadoop/hbase/procedure2/Procedure.html" title="class in org.apache.hadoop.hbase.procedure2">Procedure</a>> predicate)</pre> |
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| <dl> |
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| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code> in class <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd> |
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