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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.nemo.common.punctuation</a></div> |
| <h2 title="Class LatencyMark" class="title">Class LatencyMark</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
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| <pre>public final class <span class="typeNameLabel">LatencyMark</span> |
| extends java.lang.Object |
| implements java.io.Serializable</pre> |
| <div class="block">Latency mark is a watermark with the data related to stream data latencies. |
| It is created only from source vertex, with the data of when (timestamp) and where (taskId) it was created. |
| Later tasks can infer the latency according to the time that the latencyMark arrives to the task. |
| When the latencyMark arrives in a task, it leaves its record with its task id and timestamp, and |
| later tasks can track the itinerary by looking at the recorded previous task id and timestamp.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../serialized-form.html#org.apache.nemo.common.punctuation.LatencyMark">Serialized Form</a></dd> |
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| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
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| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,long)">LatencyMark</a></span>​(java.lang.String taskId, |
| long timestamp)</code></th> |
| <td class="colLast"> </td> |
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| <td class="colFirst"><code>boolean</code></td> |
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| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCreatedTaskId()">getCreatedTaskId</a></span>()</code></th> |
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| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCreatedTimestamp()">getCreatedTimestamp</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPreviousSentTimestamp()">getPreviousSentTimestamp</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getPreviousTaskId()">getPreviousTaskId</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setPreviousSentTimestamp(long)">setPreviousSentTimestamp</a></span>​(long timestamp)</code></th> |
| <td class="colLast"> |
| <div class="block">Set the previousSentTimestamp.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#setPreviousTaskId(java.lang.String)">setPreviousTaskId</a></span>​(java.lang.String taskId)</code></th> |
| <td class="colLast"> |
| <div class="block">Set the previousTaskId.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th> |
| <td class="colLast"> </td> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> |
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| <h4>LatencyMark</h4> |
| <pre>public LatencyMark​(java.lang.String taskId, |
| long timestamp)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>taskId</code> - task id of where it was created</dd> |
| <dd><code>timestamp</code> - timestamp of when it was created</dd> |
| </dl> |
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| <pre class="methodSignature">public long getCreatedTimestamp()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the timestamp of when this latencyMark was first created.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getCreatedTaskId()"> |
| <!-- --> |
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| <h4>getCreatedTaskId</h4> |
| <pre class="methodSignature">public java.lang.String getCreatedTaskId()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the task id of where it was created.</dd> |
| </dl> |
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| <h4>getPreviousTaskId</h4> |
| <pre class="methodSignature">public java.lang.String getPreviousTaskId()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the task id of task that this latency mark was previously passed on by.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getPreviousSentTimestamp()"> |
| <!-- --> |
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| <h4>getPreviousSentTimestamp</h4> |
| <pre class="methodSignature">public long getPreviousSentTimestamp()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the time stamp when this latency mark was previously passed on by a task.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <!-- --> |
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| <h4>setPreviousTaskId</h4> |
| <pre class="methodSignature">public void setPreviousTaskId​(java.lang.String taskId)</pre> |
| <div class="block">Set the previousTaskId.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>taskId</code> - the task id of where this latencyMark has gone through previously.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <pre class="methodSignature">public void setPreviousSentTimestamp​(long timestamp)</pre> |
| <div class="block">Set the previousSentTimestamp.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>timestamp</code> - the timestamp of when this latencyMark was sent from a previous task.</dd> |
| </dl> |
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| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>equals</code> in class <code>java.lang.Object</code></dd> |
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| <pre class="methodSignature">public java.lang.String toString()</pre> |
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| <dd><code>hashCode</code> in class <code>java.lang.Object</code></dd> |
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