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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.nemo.runtime.executor.transfer</a></div> |
| <h2 title="Class LocalOutputContext" class="title">Class LocalOutputContext</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <li><a href="LocalTransferContext.html" title="class in org.apache.nemo.runtime.executor.transfer">org.apache.nemo.runtime.executor.transfer.LocalTransferContext</a></li> |
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| <ul class="inheritance"> |
| <li>org.apache.nemo.runtime.executor.transfer.LocalOutputContext</li> |
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| <dd><code>java.lang.AutoCloseable</code>, <code><a href="OutputContext.html" title="interface in org.apache.nemo.runtime.executor.transfer">OutputContext</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public final class <span class="typeNameLabel">LocalOutputContext</span> |
| extends <a href="LocalTransferContext.html" title="class in org.apache.nemo.runtime.executor.transfer">LocalTransferContext</a> |
| implements <a href="OutputContext.html" title="interface in org.apache.nemo.runtime.executor.transfer">OutputContext</a></pre> |
| <div class="block">This class provides a data transfer interface to the sender side when both the sender and the receiver are |
| in the same executor. Since data serialization is unnecessary, the sender sends data without serializing |
| them. A single local output context represents a data transfer between two tasks.</div> |
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| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,java.lang.String,int,int)">LocalOutputContext</a></span>​(java.lang.String executorId, |
| java.lang.String edgeId, |
| int srcTaskIndex, |
| int dstTaskIndex)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a new local output context.</div> |
| </td> |
| </tr> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Closes this local output context.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>java.util.concurrent.LinkedBlockingQueue</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getQueue()">getQueue</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Accessor method for the queue in this local output context.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isClosed()">isClosed</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Checks whether the context has been closed.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="TransferOutputStream.html" title="interface in org.apache.nemo.runtime.executor.transfer">TransferOutputStream</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#newOutputStream()">newOutputStream</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a new output stream to which the sender sends its data.</div> |
| </td> |
| </tr> |
| </table> |
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| <li class="blockList"><a id="methods.inherited.from.class.org.apache.nemo.runtime.executor.transfer.LocalTransferContext"> |
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| </a> |
| <h3>Methods inherited from class org.apache.nemo.runtime.executor.transfer.<a href="LocalTransferContext.html" title="class in org.apache.nemo.runtime.executor.transfer">LocalTransferContext</a></h3> |
| <code><a href="LocalTransferContext.html#getDstTaskIndex()">getDstTaskIndex</a>, <a href="LocalTransferContext.html#getEdgeId()">getEdgeId</a>, <a href="LocalTransferContext.html#getExecutorId()">getExecutorId</a>, <a href="LocalTransferContext.html#getSrcTaskIndex()">getSrcTaskIndex</a></code></li> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h3>Constructor Detail</h3> |
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| <h4>LocalOutputContext</h4> |
| <pre>public LocalOutputContext​(java.lang.String executorId, |
| java.lang.String edgeId, |
| int srcTaskIndex, |
| int dstTaskIndex)</pre> |
| <div class="block">Creates a new local output context.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>executorId</code> - id of the executor to which this context belong</dd> |
| <dd><code>edgeId</code> - id of the DAG edge</dd> |
| <dd><code>srcTaskIndex</code> - source task index</dd> |
| <dd><code>dstTaskIndex</code> - destination task index</dd> |
| </dl> |
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| <h4>close</h4> |
| <pre class="methodSignature">public void close()</pre> |
| <div class="block">Closes this local output context.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code>close</code> in interface <code>java.lang.AutoCloseable</code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="OutputContext.html#close()">close</a></code> in interface <code><a href="OutputContext.html" title="interface in org.apache.nemo.runtime.executor.transfer">OutputContext</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getQueue()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getQueue</h4> |
| <pre class="methodSignature">public java.util.concurrent.LinkedBlockingQueue getQueue() |
| throws java.lang.RuntimeException</pre> |
| <div class="block">Accessor method for the queue in this local output context.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>queue to which the sender writes its data.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.RuntimeException</code> - if the context has already been closed.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isClosed()"> |
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| <h4>isClosed</h4> |
| <pre class="methodSignature">public boolean isClosed()</pre> |
| <div class="block">Checks whether the context has been closed. It is for testing purpose.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the context has been closed.</dd> |
| </dl> |
| </li> |
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| <h4>newOutputStream</h4> |
| <pre class="methodSignature">public <a href="TransferOutputStream.html" title="interface in org.apache.nemo.runtime.executor.transfer">TransferOutputStream</a> newOutputStream()</pre> |
| <div class="block">Creates a new output stream to which the sender sends its data.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="OutputContext.html#newOutputStream()">newOutputStream</a></code> in interface <code><a href="OutputContext.html" title="interface in org.apache.nemo.runtime.executor.transfer">OutputContext</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>output stream of this local output context</dd> |
| </dl> |
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