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| <h2 title="Class Combine.GroupedValues" class="title">Class Combine.GroupedValues<K,InputT,OutputT></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/PTransform.html" title="class in org.apache.beam.sdk.transforms">org.apache.beam.sdk.transforms.PTransform</a><<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><K,? extends java.lang.Iterable<InputT>>>,<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><K,OutputT>>></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.transforms.Combine.GroupedValues<K,InputT,OutputT></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>K</code> - type of input and output keys</dd> |
| <dd><code>InputT</code> - type of input values</dd> |
| <dd><code>OutputT</code> - type of output values</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>Enclosing class:</dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/Combine.html" title="class in org.apache.beam.sdk.transforms">Combine</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public static class <span class="typeNameLabel">Combine.GroupedValues<K,InputT,OutputT></span> |
| extends <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><K,? extends java.lang.Iterable<InputT>>>,<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><K,OutputT>>></pre> |
| <div class="block"><code>GroupedValues<K, InputT, OutputT></code> takes a <code>PCollection<KV<K, Iterable<InputT>>></code>, |
| such as the result of <a href="../../../../../org/apache/beam/sdk/transforms/GroupByKey.html" title="class in org.apache.beam.sdk.transforms"><code>GroupByKey</code></a>, applies a specified <a href="../../../../../org/apache/beam/sdk/transforms/Combine.CombineFn.html" title="class in org.apache.beam.sdk.transforms"><code>CombineFn<InputT, AccumT, OutputT></code></a> to each of the input <code>KV<K, Iterable<InputT>></code> |
| elements to produce a combined output <code>KV<K, OutputT></code> element, and returns a <code>PCollection<KV<K, OutputT>></code> containing all the combined output elements. It is common for |
| <code>InputT == OutputT</code>, but not required. Common combining functions include sums, mins, |
| maxes, and averages of numbers, conjunctions and disjunctions of booleans, statistical |
| aggregations, etc. |
| |
| <p>Example of use: |
| |
| <pre><code> |
| PCollection<KV<String, Integer>> pc = ...; |
| PCollection<KV<String, Iterable<Integer>>> groupedByKey = pc.apply( |
| new GroupByKey<String, Integer>()); |
| PCollection<KV<String, Integer>> sumByKey = groupedByKey.apply( |
| Combine.<String, Integer>groupedValues( |
| new Sum.SumIntegerFn())); |
| </code></pre> |
| |
| <p>See also <a href="../../../../../org/apache/beam/sdk/transforms/Combine.html#perKey-org.apache.beam.sdk.transforms.SerializableFunction-"><code>Combine.perKey(org.apache.beam.sdk.transforms.SerializableFunction<java.lang.Iterable<V>, V>)</code></a>/<a href="../../../../../org/apache/beam/sdk/transforms/Combine.PerKey.html" title="class in org.apache.beam.sdk.transforms"><code>Combine.PerKey</code></a>, which captures the common pattern of |
| "combining by key" in a single easy-to-use <code>PTransform</code>. |
| |
| <p>Combining for different keys can happen in parallel. Moreover, combining of the <code>Iterable<InputT></code> values associated a single key can happen in parallel, with different subsets |
| of the values being combined separately, and their intermediate results combined further, in an |
| arbitrary tree reduction pattern, until a single result value is produced for each key. |
| |
| <p>By default, the <code>Coder</code> of the keys of the output <code>PCollection<KV<K, OutputT>></code> |
| is that of the keys of the input <code>PCollection<KV<K, InputT>></code>, and the <code>Coder</code> of |
| the values of the output <code>PCollection<KV<K, OutputT>></code> is inferred from the concrete type |
| of the <code>CombineFn<InputT, AccumT, OutputT></code>'s output type <code>OutputT</code>. |
| |
| <p>Each output element has the same timestamp and is in the same window as its corresponding |
| input element, and the output <code>PCollection</code> has the same <a href="../../../../../org/apache/beam/sdk/transforms/windowing/WindowFn.html" title="class in org.apache.beam.sdk.transforms.windowing"><code>WindowFn</code></a> associated with it as the input. |
| |
| <p>See also <a href="../../../../../org/apache/beam/sdk/transforms/Combine.html#globally-org.apache.beam.sdk.transforms.SerializableFunction-"><code>Combine.globally(org.apache.beam.sdk.transforms.SerializableFunction<java.lang.Iterable<V>, V>)</code></a>/<a href="../../../../../org/apache/beam/sdk/transforms/Combine.Globally.html" title="class in org.apache.beam.sdk.transforms"><code>Combine.Globally</code></a>, which combines all the values |
| in a <code>PCollection</code> into a single value in a <code>PCollection</code>.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../serialized-form.html#org.apache.beam.sdk.transforms.Combine.GroupedValues">Serialized Form</a></dd> |
| </dl> |
| </li> |
| </ul> |
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| <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#name">name</a></code></li> |
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| <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/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#expand-org.apache.beam.sdk.values.PCollection-">expand</a></span>(<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>> input)</code> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>org.apache.beam.sdk.util.AppliedCombineFn<? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,?,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#getAppliedFn-org.apache.beam.sdk.coders.CoderRegistry-org.apache.beam.sdk.coders.Coder-org.apache.beam.sdk.values.WindowingStrategy-">getAppliedFn</a></span>(<a href="../../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a> registry, |
| <a href="../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>> inputCoder, |
| <a href="../../../../../org/apache/beam/sdk/values/WindowingStrategy.html" title="class in org.apache.beam.sdk.values">WindowingStrategy</a><?,?> windowingStrategy)</code> |
| <div class="block">Returns the <a href="../../../../../org/apache/beam/sdk/transforms/Combine.CombineFn.html" title="class in org.apache.beam.sdk.transforms"><code>Combine.CombineFn</code></a> bound to its coders.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/transforms/CombineFnBase.GlobalCombineFn.html" title="interface in org.apache.beam.sdk.transforms">CombineFnBase.GlobalCombineFn</a><? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,?,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#getFn--">getFn</a></span>()</code> |
| <div class="block">Returns the <a href="../../../../../org/apache/beam/sdk/transforms/CombineFnBase.GlobalCombineFn.html" title="interface in org.apache.beam.sdk.transforms"><code>CombineFnBase.GlobalCombineFn</code></a> used by this Combine operation.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>java.util.List<<a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#getSideInputs--">getSideInputs</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></span>(<a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</code> |
| <div class="block">Register display data for the given transform or component.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="class in org.apache.beam.sdk.transforms">Combine.GroupedValues</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#withSideInputs-java.lang.Iterable-">withSideInputs</a></span>(java.lang.Iterable<? extends <a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>> sideInputs)</code> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="class in org.apache.beam.sdk.transforms">Combine.GroupedValues</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html#withSideInputs-org.apache.beam.sdk.values.PCollectionView...-">withSideInputs</a></span>(<a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>... sideInputs)</code> </td> |
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| <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#compose-org.apache.beam.sdk.transforms.SerializableFunction-">compose</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getAdditionalInputs--">getAdditionalInputs</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder--">getDefaultOutputCoder</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-">getDefaultOutputCoder</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-org.apache.beam.sdk.values.PCollection-">getDefaultOutputCoder</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getKindString--">getKindString</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#getName--">getName</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#toString--">toString</a>, <a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-">validate</a></code></li> |
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| <pre>public <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="class in org.apache.beam.sdk.transforms">Combine.GroupedValues</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>> withSideInputs(<a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>... sideInputs)</pre> |
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| <pre>public <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="class in org.apache.beam.sdk.transforms">Combine.GroupedValues</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>> withSideInputs(java.lang.Iterable<? extends <a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>> sideInputs)</pre> |
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| <pre>public <a href="../../../../../org/apache/beam/sdk/transforms/CombineFnBase.GlobalCombineFn.html" title="interface in org.apache.beam.sdk.transforms">CombineFnBase.GlobalCombineFn</a><? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,?,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>> getFn()</pre> |
| <div class="block">Returns the <a href="../../../../../org/apache/beam/sdk/transforms/CombineFnBase.GlobalCombineFn.html" title="interface in org.apache.beam.sdk.transforms"><code>CombineFnBase.GlobalCombineFn</code></a> used by this Combine operation.</div> |
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| <h4>getSideInputs</h4> |
| <pre>public java.util.List<<a href="../../../../../org/apache/beam/sdk/values/PCollectionView.html" title="interface in org.apache.beam.sdk.values">PCollectionView</a><?>> getSideInputs()</pre> |
| </li> |
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| <a name="expand-org.apache.beam.sdk.values.PCollection-"> |
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| <h4>expand</h4> |
| <pre>public <a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>>> expand(<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>> input)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">PTransform</a></code></span></div> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>. |
| |
| <p>NOTE: This method should not be called directly. Instead apply the <code>PTransform</code> should |
| be applied to the <code>InputT</code> using the <code>apply</code> method. |
| |
| <p>Composite transforms, which are defined in terms of other transforms, should return the |
| output of one of the composed transforms. Non-composite transforms, which do not apply any |
| transforms internally, should return a new unbound output and register evaluators (via |
| backend-specific registration methods).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">expand</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>>,<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>>>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getAppliedFn-org.apache.beam.sdk.coders.CoderRegistry-org.apache.beam.sdk.coders.Coder-org.apache.beam.sdk.values.WindowingStrategy-"> |
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| <h4>getAppliedFn</h4> |
| <pre>public org.apache.beam.sdk.util.AppliedCombineFn<? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? super <a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>,?,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>> getAppliedFn(<a href="../../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a> registry, |
| <a href="../../../../../org/apache/beam/sdk/coders/Coder.html" title="class in org.apache.beam.sdk.coders">Coder</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>> inputCoder, |
| <a href="../../../../../org/apache/beam/sdk/values/WindowingStrategy.html" title="class in org.apache.beam.sdk.values">WindowingStrategy</a><?,?> windowingStrategy)</pre> |
| <div class="block">Returns the <a href="../../../../../org/apache/beam/sdk/transforms/Combine.CombineFn.html" title="class in org.apache.beam.sdk.transforms"><code>Combine.CombineFn</code></a> bound to its coders. |
| |
| <p>For internal use.</div> |
| </li> |
| </ul> |
| <a name="populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-"> |
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| <h4>populateDisplayData</h4> |
| <pre>public void populateDisplayData(<a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">PTransform</a></code></span></div> |
| <div class="block">Register display data for the given transform or component. |
| |
| <p><code>populateDisplayData(DisplayData.Builder)</code> is invoked by Pipeline runners to collect |
| display data via <a href="../../../../../org/apache/beam/sdk/transforms/display/DisplayData.html#from-org.apache.beam.sdk.transforms.display.HasDisplayData-"><code>DisplayData.from(HasDisplayData)</code></a>. Implementations may call <code>super.populateDisplayData(builder)</code> in order to register display data in the current namespace, |
| but should otherwise use <code>subcomponent.populateDisplayData(builder)</code> to use the namespace |
| of the subcomponent. |
| |
| <p>By default, does not register any display data. Implementors may override this method to |
| provide their own display data.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in interface <code><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in class <code><a href="../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><? extends <a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,? extends java.lang.Iterable<<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">InputT</a>>>>,<a href="../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a><<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">K</a>,<a href="../../../../../org/apache/beam/sdk/transforms/Combine.GroupedValues.html" title="type parameter in Combine.GroupedValues">OutputT</a>>>></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>builder</code> - The builder to populate with display data.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display"><code>HasDisplayData</code></a></dd> |
| </dl> |
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