| <!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 (1.8.0_161-google-v7) on Thu Oct 18 16:14:32 PDT 2018 --> |
| <title>MicrobatchSource (Apache Beam 2.8.0-SNAPSHOT)</title> |
| <meta name="date" content="2018-10-18"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| <script type="text/javascript" src="../../../../../../script.js"></script> |
| </head> |
| <body> |
| <script type="text/javascript"><!-- |
| try { |
| if (location.href.indexOf('is-external=true') == -1) { |
| parent.document.title="MicrobatchSource (Apache Beam 2.8.0-SNAPSHOT)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":9,"i1":10,"i2":10,"i3":10,"i4":10,"i5":10,"i6":10,"i7":10}; |
| var tabs = {65535:["t0","All Methods"],1:["t1","Static Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]}; |
| var altColor = "altColor"; |
| var rowColor = "rowColor"; |
| var tableTab = "tableTab"; |
| var activeTableTab = "activeTableTab"; |
| </script> |
| <noscript> |
| <div>JavaScript is disabled on your browser.</div> |
| </noscript> |
| <!-- ========= START OF TOP NAVBAR ======= --> |
| <div class="topNav"><a name="navbar.top"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div> |
| <a name="navbar.top.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="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../../org/apache/beam/runners/spark/io/EmptyCheckpointMark.html" title="class in org.apache.beam.runners.spark.io"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.Reader.html" title="class in org.apache.beam.runners.spark.io"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/runners/spark/io/MicrobatchSource.html" target="_top">Frames</a></li> |
| <li><a href="MicrobatchSource.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_top"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_top"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.top"> |
| <!-- --> |
| </a></div> |
| <!-- ========= END OF TOP NAVBAR ========= --> |
| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.apache.beam.runners.spark.io</div> |
| <h2 title="Class MicrobatchSource" class="title">Class MicrobatchSource<T,CheckpointMarkT extends <a href="../../../../../../org/apache/beam/sdk/io/UnboundedSource.CheckpointMark.html" title="interface in org.apache.beam.sdk.io">UnboundedSource.CheckpointMark</a>></h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">org.apache.beam.sdk.io.Source</a><T></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.runners.spark.io.MicrobatchSource<T,CheckpointMarkT></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd>java.io.Serializable, <a href="../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public class <span class="typeNameLabel">MicrobatchSource<T,CheckpointMarkT extends <a href="../../../../../../org/apache/beam/sdk/io/UnboundedSource.CheckpointMark.html" title="interface in org.apache.beam.sdk.io">UnboundedSource.CheckpointMark</a>></span> |
| extends <a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a><T></pre> |
| <div class="block">A <a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io"><code>Source</code></a> that accommodates Spark's micro-batch oriented nature and wraps an <a href="../../../../../../org/apache/beam/sdk/io/UnboundedSource.html" title="class in org.apache.beam.sdk.io"><code>UnboundedSource</code></a>.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.beam.runners.spark.io.MicrobatchSource">Serialized Form</a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h3>Nested Class Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation"> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Class and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.Reader.html" title="class in org.apache.beam.runners.spark.io">MicrobatchSource.Reader</a></span></code> |
| <div class="block">Mostly based on <a href="../../../../../../org/apache/beam/sdk/io/BoundedReadFromUnboundedSource.html" title="class in org.apache.beam.sdk.io"><code>BoundedReadFromUnboundedSource</code></a>'s <code> |
| UnboundedToBoundedSourceAdapter</code>, with some adjustments for Spark specifics.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </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="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></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>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#clearCache--">clearCache</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#equals-java.lang.Object-">equals</a></span>(java.lang.Object o)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">CheckpointMarkT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#getCheckpointMarkCoder--">getCheckpointMarkCoder</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#getId--">getId</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/Source.Reader.html" title="class in org.apache.beam.sdk.io">Source.Reader</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#getOrCreateReader-org.apache.beam.sdk.options.PipelineOptions-CheckpointMarkT-">getOrCreateReader</a></span>(<a href="../../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options, |
| <a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">CheckpointMarkT</a> checkpointMark)</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#getOutputCoder--">getOutputCoder</a></span>()</code> |
| <div class="block">Returns the <code>Coder</code> to use for the data read from this source.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#hashCode--">hashCode</a></span>()</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html#validate--">validate</a></span>()</code> |
| <div class="block">Checks that this source is valid, before it can be used in a pipeline.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.beam.sdk.io.Source"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.beam.sdk.io.<a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/io/Source.html#getDefaultOutputCoder--">getDefaultOutputCoder</a>, <a href="../../../../../../org/apache/beam/sdk/io/Source.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code></li> |
| </ul> |
| <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, finalize, getClass, notify, notifyAll, toString, 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="getOrCreateReader-org.apache.beam.sdk.options.PipelineOptions-org.apache.beam.sdk.io.UnboundedSource.CheckpointMark-"> |
| <!-- --> |
| </a><a name="getOrCreateReader-org.apache.beam.sdk.options.PipelineOptions-CheckpointMarkT-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOrCreateReader</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/Source.Reader.html" title="class in org.apache.beam.sdk.io">Source.Reader</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>> getOrCreateReader(<a href="../../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> options, |
| <a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">CheckpointMarkT</a> checkpointMark) |
| throws java.io.IOException</pre> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.io.IOException</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="validate--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validate</h4> |
| <pre>public void validate()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/io/Source.html#validate--">Source</a></code></span></div> |
| <div class="block">Checks that this source is valid, before it can be used in a pipeline. |
| |
| <p>It is recommended to use <a href="http://google.github.io/guava/releases/20.0/api/docs/com/google/common/base/Preconditions.html?is-external=true" title="class or interface in com.google.common.base"><code>Preconditions</code></a> for implementing this |
| method.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/io/Source.html#validate--">validate</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOutputCoder--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOutputCoder</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>> getOutputCoder()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/io/Source.html#getOutputCoder--">Source</a></code></span></div> |
| <div class="block">Returns the <code>Coder</code> to use for the data read from this source.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/io/Source.html#getOutputCoder--">getOutputCoder</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/io/Source.html" title="class in org.apache.beam.sdk.io">Source</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">T</a>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getCheckpointMarkCoder--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getCheckpointMarkCoder</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><<a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.html" title="type parameter in MicrobatchSource">CheckpointMarkT</a>> getCheckpointMarkCoder()</pre> |
| </li> |
| </ul> |
| <a name="getId--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getId</h4> |
| <pre>public java.lang.String getId()</pre> |
| </li> |
| </ul> |
| <a name="equals-java.lang.Object-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>equals</h4> |
| <pre>public boolean equals(java.lang.Object o)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>equals</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hashCode--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashCode</h4> |
| <pre>public int hashCode()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>hashCode</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="clearCache--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>clearCache</h4> |
| <pre>public static void clearCache()</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <!-- ======= START OF BOTTOM NAVBAR ====== --> |
| <div class="bottomNav"><a name="navbar.bottom"> |
| <!-- --> |
| </a> |
| <div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div> |
| <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="package-tree.html">Tree</a></li> |
| <li><a href="../../../../../../deprecated-list.html">Deprecated</a></li> |
| <li><a href="../../../../../../index-all.html">Index</a></li> |
| <li><a href="../../../../../../help-doc.html">Help</a></li> |
| </ul> |
| </div> |
| <div class="subNav"> |
| <ul class="navList"> |
| <li><a href="../../../../../../org/apache/beam/runners/spark/io/EmptyCheckpointMark.html" title="class in org.apache.beam.runners.spark.io"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/runners/spark/io/MicrobatchSource.Reader.html" title="class in org.apache.beam.runners.spark.io"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/runners/spark/io/MicrobatchSource.html" target="_top">Frames</a></li> |
| <li><a href="MicrobatchSource.html" target="_top">No Frames</a></li> |
| </ul> |
| <ul class="navList" id="allclasses_navbar_bottom"> |
| <li><a href="../../../../../../allclasses-noframe.html">All Classes</a></li> |
| </ul> |
| <div> |
| <script type="text/javascript"><!-- |
| allClassesLink = document.getElementById("allclasses_navbar_bottom"); |
| if(window==top) { |
| allClassesLink.style.display = "block"; |
| } |
| else { |
| allClassesLink.style.display = "none"; |
| } |
| //--> |
| </script> |
| </div> |
| <div> |
| <ul class="subNavList"> |
| <li>Summary: </li> |
| <li><a href="#nested.class.summary">Nested</a> | </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li>Constr | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </body> |
| </html> |
