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| <dt>Direct Known Subclasses:</dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.OnTimerContext.html" title="class in org.apache.beam.sdk.transforms">DoFn.OnTimerContext</a>, <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.ProcessContext.html" title="class in org.apache.beam.sdk.transforms">DoFn.ProcessContext</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms">DoFn</a><<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">InputT</a>,<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">OutputT</a>></dd> |
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| <br> |
| <pre>public abstract class <span class="typeNameLabel">DoFn.WindowedContext</span> |
| extends java.lang.Object</pre> |
| <div class="block">Information accessible to all methods in this <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> where the context is in some window.</div> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#WindowedContext--">WindowedContext</a></span>()</code> </td> |
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| <td class="colFirst"><code>abstract <a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#getPipelineOptions--">getPipelineOptions</a></span>()</code> |
| <div class="block">Returns the <code>PipelineOptions</code> specified with the <a href="../../../../../org/apache/beam/sdk/PipelineRunner.html" title="class in org.apache.beam.sdk"><code>PipelineRunner</code></a> invoking this <code>DoFn</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#output-OutputT-">output</a></span>(<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">OutputT</a> output)</code> |
| <div class="block">Adds the given element to the main output <code>PCollection</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>abstract <T> void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#output-org.apache.beam.sdk.values.TupleTag-T-">output</a></span>(<a href="../../../../../org/apache/beam/sdk/values/TupleTag.html" title="class in org.apache.beam.sdk.values">TupleTag</a><T> tag, |
| T output)</code> |
| <div class="block">Adds the given element to the output <code>PCollection</code> with the given tag.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>abstract void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#outputWithTimestamp-OutputT-org.joda.time.Instant-">outputWithTimestamp</a></span>(<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">OutputT</a> output, |
| <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">Adds the given element to the main output <code>PCollection</code>, with the given timestamp.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>abstract <T> void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/DoFn.WindowedContext.html#outputWithTimestamp-org.apache.beam.sdk.values.TupleTag-T-org.joda.time.Instant-">outputWithTimestamp</a></span>(<a href="../../../../../org/apache/beam/sdk/values/TupleTag.html" title="class in org.apache.beam.sdk.values">TupleTag</a><T> tag, |
| T output, |
| <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">Adds the given element to the specified output <code>PCollection</code>, with the given timestamp.</div> |
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| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
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| <h4>WindowedContext</h4> |
| <pre>public WindowedContext()</pre> |
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| <pre>public abstract <a href="../../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a> getPipelineOptions()</pre> |
| <div class="block">Returns the <code>PipelineOptions</code> specified with the <a href="../../../../../org/apache/beam/sdk/PipelineRunner.html" title="class in org.apache.beam.sdk"><code>PipelineRunner</code></a> invoking this <code>DoFn</code>.</div> |
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| <pre>public abstract void output(<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">OutputT</a> output)</pre> |
| <div class="block">Adds the given element to the main output <code>PCollection</code>. |
| |
| <p>Once passed to <code>output</code> the element should not be modified in any way. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.ProcessElement.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.ProcessElement</code></a>, the output element will have the same timestamp |
| and be in the same windows as the input element passed to the method annotated with |
| <code>@ProcessElement</code>. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a>, this will attempt to use the |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> of the input <code>PCollection</code> to |
| determine what windows the element should be in, throwing an exception if the <code>WindowFn</code> attempts to access any information about the input element. The output element will |
| have a timestamp of negative infinity. |
| |
| <p><i>Note:</i> A splittable <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> is not allowed to output from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> |
| or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a> methods.</div> |
| </li> |
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| <h4>outputWithTimestamp</h4> |
| <pre>public abstract void outputWithTimestamp(<a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="type parameter in DoFn">OutputT</a> output, |
| <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">Adds the given element to the main output <code>PCollection</code>, with the given timestamp. |
| |
| <p>Once passed to <code>outputWithTimestamp</code> the element should not be modified in any way. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.ProcessElement.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.ProcessElement</code></a>), the timestamp must not be older than the input |
| element's timestamp minus <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html#getAllowedTimestampSkew--"><code>DoFn.getAllowedTimestampSkew()</code></a>. The output element will be in |
| the same windows as the input element. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a>, this will attempt to use the |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> of the input <code>PCollection</code> to |
| determine what windows the element should be in, throwing an exception if the <code>WindowFn</code> attempts to access any information about the input element except for the |
| timestamp. |
| |
| <p><i>Note:</i> A splittable <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> is not allowed to output from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> |
| or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a> methods.</div> |
| </li> |
| </ul> |
| <a name="output-org.apache.beam.sdk.values.TupleTag-java.lang.Object-"> |
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| <h4>output</h4> |
| <pre>public abstract <T> void output(<a href="../../../../../org/apache/beam/sdk/values/TupleTag.html" title="class in org.apache.beam.sdk.values">TupleTag</a><T> tag, |
| T output)</pre> |
| <div class="block">Adds the given element to the output <code>PCollection</code> with the given tag. |
| |
| <p>Once passed to <code>output</code> the element should not be modified in any way. |
| |
| <p>The caller of <code>ParDo</code> uses <a href="../../../../../org/apache/beam/sdk/transforms/ParDo.SingleOutput.html#withOutputTags-org.apache.beam.sdk.values.TupleTag-org.apache.beam.sdk.values.TupleTagList-"><code>ParDo.SingleOutput.withOutputTags(org.apache.beam.sdk.values.TupleTag<OutputT>, org.apache.beam.sdk.values.TupleTagList)</code></a> to specify the |
| tags of outputs that it consumes. Non-consumed outputs, e.g., outputs for monitoring purposes |
| only, don't necessarily need to be specified. |
| |
| <p>The output element will have the same timestamp and be in the same windows as the input |
| element passed to <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.ProcessElement.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.ProcessElement</code></a>). |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a>, this will attempt to use the |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> of the input <code>PCollection</code> to |
| determine what windows the element should be in, throwing an exception if the <code>WindowFn</code> attempts to access any information about the input element. The output element will |
| have a timestamp of negative infinity. |
| |
| <p><i>Note:</i> A splittable <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> is not allowed to output from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> |
| or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a> methods.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/ParDo.SingleOutput.html#withOutputTags-org.apache.beam.sdk.values.TupleTag-org.apache.beam.sdk.values.TupleTagList-"><code>ParDo.SingleOutput.withOutputTags(org.apache.beam.sdk.values.TupleTag<OutputT>, org.apache.beam.sdk.values.TupleTagList)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="outputWithTimestamp-org.apache.beam.sdk.values.TupleTag-java.lang.Object-org.joda.time.Instant-"> |
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| <h4>outputWithTimestamp</h4> |
| <pre>public abstract <T> void outputWithTimestamp(<a href="../../../../../org/apache/beam/sdk/values/TupleTag.html" title="class in org.apache.beam.sdk.values">TupleTag</a><T> tag, |
| T output, |
| <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">Adds the given element to the specified output <code>PCollection</code>, with the given timestamp. |
| |
| <p>Once passed to <code>outputWithTimestamp</code> the element should not be modified in any way. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.ProcessElement.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.ProcessElement</code></a>), the timestamp must not be older than the input |
| element's timestamp minus <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html#getAllowedTimestampSkew--"><code>DoFn.getAllowedTimestampSkew()</code></a>. The output element will be in |
| the same windows as the input element. |
| |
| <p>If invoked from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a>, this will attempt to use the |
| <a href="../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> of the input <code>PCollection</code> to |
| determine what windows the element should be in, throwing an exception if the <code>WindowFn</code> attempts to access any information about the input element except for the |
| timestamp. |
| |
| <p><i>Note:</i> A splittable <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.html" title="class in org.apache.beam.sdk.transforms"><code>DoFn</code></a> is not allowed to output from <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.StartBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.StartBundle</code></a> |
| or <a href="../../../../../org/apache/beam/sdk/transforms/DoFn.FinishBundle.html" title="annotation in org.apache.beam.sdk.transforms"><code>DoFn.FinishBundle</code></a> methods.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/ParDo.SingleOutput.html#withOutputTags-org.apache.beam.sdk.values.TupleTag-org.apache.beam.sdk.values.TupleTagList-"><code>ParDo.SingleOutput.withOutputTags(org.apache.beam.sdk.values.TupleTag<OutputT>, org.apache.beam.sdk.values.TupleTagList)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
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