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| <h2 title="Class ShellBoltMessageQueue" class="title">Class ShellBoltMessageQueue</h2> |
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| <pre>public class <span class="typeNameLabel">ShellBoltMessageQueue</span> |
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| <div class="block"><p>A data structure for ShellBolt which includes two queues (FIFO), which one is for task ids (unbounded), another one is for bolt msg (bounded).</p></div> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/ShellBoltMessageQueue.html#ShellBoltMessageQueue--">ShellBoltMessageQueue</a></span>()</code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/ShellBoltMessageQueue.html#ShellBoltMessageQueue-int-">ShellBoltMessageQueue</a></span>(int boltMsgCapacity)</code> </td> |
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| <td class="colFirst"><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></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/ShellBoltMessageQueue.html#poll-long-java.util.concurrent.TimeUnit-">poll</a></span>(long timeout, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit)</code> |
| <div class="block">poll() is a core feature of ShellBoltMessageQueue.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/ShellBoltMessageQueue.html#putBoltMsg-org.apache.storm.multilang.BoltMsg-">putBoltMsg</a></span>(<a href="../../../../org/apache/storm/multilang/BoltMsg.html" title="class in org.apache.storm.multilang">BoltMsg</a> boltMsg)</code> |
| <div class="block">put bolt message to its queue.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/ShellBoltMessageQueue.html#putTaskIds-java.util.List-">putTaskIds</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> taskIds)</code> |
| <div class="block">put list of task id to its queue.</div> |
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| <pre>public ShellBoltMessageQueue(int boltMsgCapacity)</pre> |
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| <pre>public ShellBoltMessageQueue()</pre> |
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| <h4>putTaskIds</h4> |
| <pre>public void putTaskIds(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> taskIds)</pre> |
| <div class="block"><p>put list of task id to its queue.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>taskIds</code> - task ids that received the tuples</dd> |
| </dl> |
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| <h4>putBoltMsg</h4> |
| <pre>public void putBoltMsg(<a href="../../../../org/apache/storm/multilang/BoltMsg.html" title="class in org.apache.storm.multilang">BoltMsg</a> boltMsg) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <div class="block"><p>put bolt message to its queue.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>boltMsg</code> - BoltMsg to pass to subprocess</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
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| <h4>poll</h4> |
| <pre>public <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> poll(long timeout, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/TimeUnit.html?is-external=true" title="class or interface in java.util.concurrent">TimeUnit</a> unit) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <div class="block"><p>poll() is a core feature of ShellBoltMessageQueue. It retrieves and removes the head of one queues, waiting up to the specified wait time if necessary for an element to become available. There’s priority that what queue it retrieves first, taskIds is higher than boltMsgQueue.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>timeout</code> - how long to wait before giving up, in units of unit</dd> |
| <dd><code>unit</code> - a TimeUnit determining how to interpret the timeout parameter</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><code>List<Integer></code> if task id is available, BoltMsg if task id is not available but bolt message is available, null if the specified waiting time elapses before an element is available.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
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