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| <div class="subTitle">org.apache.beam.sdk.transforms.windowing</div> |
| <h2 title="Class PartitioningWindowFn" class="title">Class PartitioningWindowFn<T,W extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</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/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">org.apache.beam.sdk.transforms.windowing.WindowFn</a><T,W></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/NonMergingWindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">org.apache.beam.sdk.transforms.windowing.NonMergingWindowFn</a><T,W></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.transforms.windowing.PartitioningWindowFn<T,W></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
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| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>T</code> - type of elements being windowed</dd> |
| <dd><code>W</code> - window type</dd> |
| </dl> |
| <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> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/CalendarWindows.DaysWindows.html" title="class in org.apache.beam.sdk.transforms.windowing">CalendarWindows.DaysWindows</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/CalendarWindows.MonthsWindows.html" title="class in org.apache.beam.sdk.transforms.windowing">CalendarWindows.MonthsWindows</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/CalendarWindows.YearsWindows.html" title="class in org.apache.beam.sdk.transforms.windowing">CalendarWindows.YearsWindows</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/FixedWindows.html" title="class in org.apache.beam.sdk.transforms.windowing">FixedWindows</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public abstract class <span class="typeNameLabel">PartitioningWindowFn<T,W extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a>></span> |
| extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/NonMergingWindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">NonMergingWindowFn</a><T,W></pre> |
| <div class="block">A <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> that places each value into exactly one window based on its timestamp and |
| never merges windows.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.beam.sdk.transforms.windowing.PartitioningWindowFn">Serialized Form</a></dd> |
| </dl> |
| </li> |
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| <h3>Nested classes/interfaces inherited from class org.apache.beam.sdk.transforms.windowing.<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.AssignContext.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn.AssignContext</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.MergeContext.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn.MergeContext</a></code></li> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#PartitioningWindowFn--">PartitioningWindowFn</a></span>()</code> </td> |
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| <tr> |
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| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#assignsToOneWindow--">assignsToOneWindow</a></span>()</code> |
| <div class="block">Returns true if this <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> always assigns an element to exactly one window.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#assignWindow-org.joda.time.Instant-">assignWindow</a></span>(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> timestamp)</code> |
| <div class="block">Returns the single window to which elements with this timestamp belong.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>java.util.Collection<<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#assignWindows-org.apache.beam.sdk.transforms.windowing.WindowFn.AssignContext-">assignWindows</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.AssignContext.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn.AssignContext</a> c)</code> |
| <div class="block">Given a timestamp and element, returns the set of windows into which it should be placed.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowMappingFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowMappingFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#getDefaultWindowMappingFn--">getDefaultWindowMappingFn</a></span>()</code> |
| <div class="block">Returns the default <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowMappingFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowMappingFn</code></a> to use to map main input windows to side input |
| windows.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html#getOutputTime-org.joda.time.Instant-W-">getOutputTime</a></span>(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> inputTimestamp, |
| <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> window)</code> |
| <div class="block">Returns the output timestamp to use for data depending on the given <code>inputTimestamp</code> in |
| the specified <code>window</code>.</div> |
| </td> |
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| <h3>Methods inherited from class org.apache.beam.sdk.transforms.windowing.<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/NonMergingWindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">NonMergingWindowFn</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/NonMergingWindowFn.html#isNonMerging--">isNonMerging</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/NonMergingWindowFn.html#mergeWindows-org.apache.beam.sdk.transforms.windowing.WindowFn.MergeContext-">mergeWindows</a></code></li> |
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| <a name="PartitioningWindowFn--"> |
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| <h4>PartitioningWindowFn</h4> |
| <pre>public PartitioningWindowFn()</pre> |
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| <h4>assignWindow</h4> |
| <pre>public abstract <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> assignWindow(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> timestamp)</pre> |
| <div class="block">Returns the single window to which elements with this timestamp belong.</div> |
| </li> |
| </ul> |
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| <h4>assignWindows</h4> |
| <pre>public final java.util.Collection<<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a>> assignWindows(<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.AssignContext.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn.AssignContext</a> c)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#assignWindows-org.apache.beam.sdk.transforms.windowing.WindowFn.AssignContext-">WindowFn</a></code></span></div> |
| <div class="block">Given a timestamp and element, returns the set of windows into which it should be placed.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#assignWindows-org.apache.beam.sdk.transforms.windowing.WindowFn.AssignContext-">assignWindows</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">T</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDefaultWindowMappingFn--"> |
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| <h4>getDefaultWindowMappingFn</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowMappingFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowMappingFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a>> getDefaultWindowMappingFn()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#getDefaultWindowMappingFn--">WindowFn</a></code></span></div> |
| <div class="block">Returns the default <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowMappingFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowMappingFn</code></a> to use to map main input windows to side input |
| windows. This should accept arbitrary main input windows, and produce a <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>BoundedWindow</code></a> |
| that can be produced by this <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#getDefaultWindowMappingFn--">getDefaultWindowMappingFn</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">T</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOutputTime-org.joda.time.Instant-org.apache.beam.sdk.transforms.windowing.BoundedWindow-"> |
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| </a><a name="getOutputTime-org.joda.time.Instant-W-"> |
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| <h4>getOutputTime</h4> |
| <pre>public <a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> getOutputTime(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.3/org/joda/time/Instant.html?is-external=true" title="class or interface in org.joda.time">Instant</a> inputTimestamp, |
| <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> window)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#getOutputTime-org.joda.time.Instant-W-">WindowFn</a></code></span></div> |
| <div class="block">Returns the output timestamp to use for data depending on the given <code>inputTimestamp</code> in |
| the specified <code>window</code>. |
| |
| <p>The result of this method must be between <code>inputTimestamp</code> and <code>window.maxTimestamp()</code> (inclusive on both sides). |
| |
| <p>This function must be monotonic across input timestamps. Specifically, if <code>A < B</code>, |
| then <code>getOutputTime(A, window) <= getOutputTime(B, window)</code>. |
| |
| <p>For a <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> that doesn't produce overlapping windows, this can (and typically |
| should) just return <code>inputTimestamp</code>. In the presence of overlapping windows, it is |
| suggested that the result in later overlapping windows is past the end of earlier windows so |
| that the later windows don't prevent the watermark from progressing past the end of the earlier |
| window.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#getOutputTime-org.joda.time.Instant-W-">getOutputTime</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">T</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="assignsToOneWindow--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>assignsToOneWindow</h4> |
| <pre>public final boolean assignsToOneWindow()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#assignsToOneWindow--">WindowFn</a></code></span></div> |
| <div class="block">Returns true if this <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> always assigns an element to exactly one window. |
| |
| <p>If this varies per-element, or cannot be determined, conservatively return false. |
| |
| <p>By default, returns false.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html#assignsToOneWindow--">assignsToOneWindow</a></code> in class <code><a href="../../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing">WindowFn</a><<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">T</a>,<a href="../../../../../../org/apache/beam/sdk/transforms/windowing/PartitioningWindowFn.html" title="type parameter in PartitioningWindowFn">W</a> extends <a href="../../../../../../org/apache/beam/sdk/transforms/windowing/BoundedWindow.html" title="class in org.apache.beam.sdk.transforms.windowing">BoundedWindow</a>></code></dd> |
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