| <!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_181-google-v7) on Wed Aug 14 17:37:13 PDT 2019 --> |
| <title>Trigger.OnceTrigger (Apache Beam 2.15.0-SNAPSHOT)</title> |
| <meta name="date" content="2019-08-14"> |
| <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="Trigger.OnceTrigger (Apache Beam 2.15.0-SNAPSHOT)"; |
| } |
| } |
| catch(err) { |
| } |
| //--> |
| var methods = {"i0":10}; |
| var tabs = {65535:["t0","All 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/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Window.html" title="class in org.apache.beam.sdk.transforms.windowing"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" target="_top">Frames</a></li> |
| <li><a href="Trigger.OnceTrigger.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.classes.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger">Nested</a> | </li> |
| <li><a href="#fields.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#constructor.detail">Constr</a> | </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.sdk.transforms.windowing</div> |
| <h2 title="Class Trigger.OnceTrigger" class="title">Class Trigger.OnceTrigger</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">org.apache.beam.sdk.transforms.windowing.Trigger</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.transforms.windowing.Trigger.OnceTrigger</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</dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterAll.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterAll</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterFirst.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterFirst</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterPane.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterPane</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterProcessingTime.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterProcessingTime</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterSynchronizedProcessingTime.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterSynchronizedProcessingTime</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/AfterWatermark.FromEndOfWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">AfterWatermark.FromEndOfWindow</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Never.NeverTrigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Never.NeverTrigger</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre><a href="../../../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a> |
| public abstract static class <span class="typeNameLabel">Trigger.OnceTrigger</span> |
| extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></pre> |
| <div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b> |
| |
| <p>Triggers that are guaranteed to fire at most once should extend <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>Trigger.OnceTrigger</code></a> rather |
| than the general <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>Trigger</code></a> class to indicate that behavior.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.beam.sdk.transforms.windowing.Trigger.OnceTrigger">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> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger"> |
| <!-- --> |
| </a> |
| <h3>Nested classes/interfaces inherited from class org.apache.beam.sdk.transforms.windowing.<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger.OnceTrigger</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>Field Summary</h3> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger"> |
| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.beam.sdk.transforms.windowing.<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#subTriggers">subTriggers</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colLast" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html#OnceTrigger-java.util.List-">OnceTrigger</a></span>(java.util.List<<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a>> subTriggers)</code> </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="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><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger.OnceTrigger</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html#getContinuationTrigger--">getContinuationTrigger</a></span>()</code> |
| <div class="block">Return a trigger to use after a <a href="../../../../../../org/apache/beam/sdk/transforms/GroupByKey.html" title="class in org.apache.beam.sdk.transforms"><code>GroupByKey</code></a> to preserve the intention of this trigger.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class org.apache.beam.sdk.transforms.windowing.<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#equals-java.lang.Object-">equals</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#getContinuationTrigger-java.util.List-">getContinuationTrigger</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#getWatermarkThatGuaranteesFiring-org.apache.beam.sdk.transforms.windowing.BoundedWindow-">getWatermarkThatGuaranteesFiring</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#hashCode--">hashCode</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#isCompatible-org.apache.beam.sdk.transforms.windowing.Trigger-">isCompatible</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#orFinally-org.apache.beam.sdk.transforms.windowing.Trigger.OnceTrigger-">orFinally</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#subTriggers--">subTriggers</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#toString--">toString</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, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a name="OnceTrigger-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>OnceTrigger</h4> |
| <pre>protected OnceTrigger(@Nullable |
| java.util.List<<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a>> subTriggers)</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ============ METHOD DETAIL ========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.detail"> |
| <!-- --> |
| </a> |
| <h3>Method Detail</h3> |
| <a name="getContinuationTrigger--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getContinuationTrigger</h4> |
| <pre>public final <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger.OnceTrigger</a> getContinuationTrigger()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#getContinuationTrigger--">Trigger</a></code></span></div> |
| <div class="block">Return a trigger to use after a <a href="../../../../../../org/apache/beam/sdk/transforms/GroupByKey.html" title="class in org.apache.beam.sdk.transforms"><code>GroupByKey</code></a> to preserve the intention of this trigger. |
| Specifically, triggers that are time based and intended to provide speculative results should |
| continue providing speculative results. Triggers that fire once (or multiple times) should |
| continue firing once (or multiple times). |
| |
| <p>If this method is not overridden, its default implementation delegates its behavior to |
| <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#getContinuationTrigger-java.util.List-"><code>Trigger.getContinuationTrigger(List)</code></a> which is expected to be implemented by subclasses.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html#getContinuationTrigger--">getContinuationTrigger</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing">Trigger</a></code></dd> |
| </dl> |
| </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/sdk/transforms/windowing/Trigger.html" title="class in org.apache.beam.sdk.transforms.windowing"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/Window.html" title="class in org.apache.beam.sdk.transforms.windowing"><span class="typeNameLink">Next Class</span></a></li> |
| </ul> |
| <ul class="navList"> |
| <li><a href="../../../../../../index.html?org/apache/beam/sdk/transforms/windowing/Trigger.OnceTrigger.html" target="_top">Frames</a></li> |
| <li><a href="Trigger.OnceTrigger.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.classes.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger">Nested</a> | </li> |
| <li><a href="#fields.inherited.from.class.org.apache.beam.sdk.transforms.windowing.Trigger">Field</a> | </li> |
| <li><a href="#constructor.summary">Constr</a> | </li> |
| <li><a href="#method.summary">Method</a></li> |
| </ul> |
| <ul class="subNavList"> |
| <li>Detail: </li> |
| <li>Field | </li> |
| <li><a href="#constructor.detail">Constr</a> | </li> |
| <li><a href="#method.detail">Method</a></li> |
| </ul> |
| </div> |
| <a name="skip.navbar.bottom"> |
| <!-- --> |
| </a></div> |
| <!-- ======== END OF BOTTOM NAVBAR ======= --> |
| </body> |
| </html> |
