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| <div class="subTitle">org.apache.beam.sdk.extensions.zetasketch</div> |
| <h2 title="Class HllCount.Init.Builder" class="title">Class HllCount.Init.Builder<InputT></h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.extensions.zetasketch.HllCount.Init.Builder<InputT></li> |
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| <div class="description"> |
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| <dl> |
| <dt><span class="paramLabel">Type Parameters:</span></dt> |
| <dd><code>InputT</code> - element type or value type in <code>KV</code>s of the input <code>PCollection</code> to |
| the <code>PTransform</code> being built</dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.html" title="class in org.apache.beam.sdk.extensions.zetasketch">HllCount.Init</a></dd> |
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| <br> |
| <pre>public static final class <span class="typeNameLabel">HllCount.Init.Builder<InputT></span> |
| extends java.lang.Object</pre> |
| <div class="block">Builder for the <code>HllCount.Init</code> combining <code>PTransform</code>. |
| |
| <p>Call <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#withPrecision-int-"><code>withPrecision(int)</code></a> to customize the <code>precision</code> parameter of the |
| sketch. |
| |
| <p>Call <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#globally--"><code>globally()</code></a> or <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#perKey--"><code>perKey()</code></a> to finalize the <code>PTransform</code>.</div> |
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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/transforms/Combine.Globally.html" title="class in org.apache.beam.sdk.transforms">Combine.Globally</a><<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>,byte[]></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#globally--">globally</a></span>()</code> |
| <div class="block">Returns a <code>Combine.Globally</code> <code>PTransform</code> that takes an input <code>PCollection<InputT></code> and returns a <code>PCollection<byte[]></code> which consists of the HLL++ |
| sketch computed from the elements in the input <code>PCollection</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><K> <a href="../../../../../../org/apache/beam/sdk/transforms/Combine.PerKey.html" title="class in org.apache.beam.sdk.transforms">Combine.PerKey</a><K,<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>,byte[]></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#perKey--">perKey</a></span>()</code> |
| <div class="block">Returns a <code>Combine.PerKey</code> <code>PTransform</code> that takes an input <code>PCollection<KV<K, InputT>></code> and returns a <code>PCollection<KV<K, byte[]>></code> which consists |
| of the per-key HLL++ sketch computed from the values matching each key in the input <code>PCollection</code>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="class in org.apache.beam.sdk.extensions.zetasketch">HllCount.Init.Builder</a><<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html#withPrecision-int-">withPrecision</a></span>(int precision)</code> |
| <div class="block">Explicitly set the <code>precision</code> parameter used to compute HLL++ sketch.</div> |
| </td> |
| </tr> |
| </table> |
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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> |
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| <h4>withPrecision</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="class in org.apache.beam.sdk.extensions.zetasketch">HllCount.Init.Builder</a><<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>> withPrecision(int precision)</pre> |
| <div class="block">Explicitly set the <code>precision</code> parameter used to compute HLL++ sketch. |
| |
| <p>Valid range is between <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.html#MINIMUM_PRECISION"><code>HllCount.MINIMUM_PRECISION</code></a> and <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.html#MAXIMUM_PRECISION"><code>HllCount.MAXIMUM_PRECISION</code></a>. If |
| this method is not called, <a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.html#DEFAULT_PRECISION"><code>HllCount.DEFAULT_PRECISION</code></a> will be used. Sketches computed using |
| different <code>precision</code>s cannot be merged together.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>precision</code> - the <code>precision</code> parameter used to compute HLL++ sketch</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="globally--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>globally</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/transforms/Combine.Globally.html" title="class in org.apache.beam.sdk.transforms">Combine.Globally</a><<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>,byte[]> globally()</pre> |
| <div class="block">Returns a <code>Combine.Globally</code> <code>PTransform</code> that takes an input <code>PCollection<InputT></code> and returns a <code>PCollection<byte[]></code> which consists of the HLL++ |
| sketch computed from the elements in the input <code>PCollection</code>. |
| |
| <p>Returns a singleton <code>PCollection</code> with an "empty sketch" (byte array of length 0) |
| if the input <code>PCollection</code> is empty.</div> |
| </li> |
| </ul> |
| <a name="perKey--"> |
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| </a> |
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| <h4>perKey</h4> |
| <pre>public <K> <a href="../../../../../../org/apache/beam/sdk/transforms/Combine.PerKey.html" title="class in org.apache.beam.sdk.transforms">Combine.PerKey</a><K,<a href="../../../../../../org/apache/beam/sdk/extensions/zetasketch/HllCount.Init.Builder.html" title="type parameter in HllCount.Init.Builder">InputT</a>,byte[]> perKey()</pre> |
| <div class="block">Returns a <code>Combine.PerKey</code> <code>PTransform</code> that takes an input <code>PCollection<KV<K, InputT>></code> and returns a <code>PCollection<KV<K, byte[]>></code> which consists |
| of the per-key HLL++ sketch computed from the values matching each key in the input <code>PCollection</code>.</div> |
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