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<div class="subTitle">org.apache.beam.sdk</div>
<h2 title="Class Pipeline" class="title">Class Pipeline</h2>
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<li>java.lang.Object</li>
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<li>org.apache.beam.sdk.Pipeline</li>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../org/apache/beam/sdk/testing/TestPipeline.html" title="class in org.apache.beam.sdk.testing">TestPipeline</a></dd>
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<pre>public class <span class="typeNameLabel">Pipeline</span>
extends java.lang.Object</pre>
<div class="block">A <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> manages a directed acyclic graph of <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransforms</code></a>, and the
<a href="../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values"><code>PCollections</code></a> that the <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransforms</code></a> consume and produce.
<p>Each <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> is self-contained and isolated from any other <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>. The
<a href="../../../../org/apache/beam/sdk/values/PValue.html" title="interface in org.apache.beam.sdk.values"><code>PValues</code></a> that are inputs and outputs of each of a <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline's</code></a>
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransforms</code></a> are also owned by that <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>. A <a href="../../../../org/apache/beam/sdk/values/PValue.html" title="interface in org.apache.beam.sdk.values"><code>PValue</code></a> owned by
one <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> can be read only by <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransforms</code></a> also owned by that <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>. <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipelines</code></a> can safely be executed concurrently.
<p>Here is a typical example of use:
<pre><code>
// Start by defining the options for the pipeline.
PipelineOptions options = PipelineOptionsFactory.create();
// Then create the pipeline. The runner is determined by the options.
Pipeline p = Pipeline.create(options);
// A root PTransform, like TextIO.Read or Create, gets added
// to the Pipeline by being applied:
PCollection&lt;String&gt; lines =
p.apply(TextIO.read().from("gs://bucket/dir/file*.txt"));
// A Pipeline can have multiple root transforms:
PCollection&lt;String&gt; moreLines =
p.apply(TextIO.read().from("gs://bucket/other/dir/file*.txt"));
PCollection&lt;String&gt; yetMoreLines =
p.apply(Create.of("yet", "more", "lines").withCoder(StringUtf8Coder.of()));
// Further PTransforms can be applied, in an arbitrary (acyclic) graph.
// Subsequent PTransforms (and intermediate PCollections etc.) are
// implicitly part of the same Pipeline.
PCollection&lt;String&gt; allLines =
PCollectionList.of(lines).and(moreLines).and(yetMoreLines)
.apply(new Flatten&lt;String&gt;());
PCollection&lt;KV&lt;String, Integer&gt;&gt; wordCounts =
allLines
.apply(ParDo.of(new ExtractWords()))
.apply(new Count&lt;String&gt;());
PCollection&lt;String&gt; formattedWordCounts =
wordCounts.apply(ParDo.of(new FormatCounts()));
formattedWordCounts.apply(TextIO.write().to("gs://bucket/dir/counts.txt"));
// PTransforms aren't executed when they're applied, rather they're
// just added to the Pipeline. Once the whole Pipeline of PTransforms
// is constructed, the Pipeline's PTransforms can be run using a
// PipelineRunner. The default PipelineRunner executes the Pipeline
// directly, sequentially, in this one process, which is useful for
// unit tests and simple experiments:
p.run();
</code></pre></div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.PipelineExecutionException.html" title="class in org.apache.beam.sdk">Pipeline.PipelineExecutionException</a></span></code>
<div class="block">Thrown during execution of a <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>, whenever user code within that <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>
throws an exception.</div>
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<tr class="rowColor">
<td class="colFirst"><code>static interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html" title="interface in org.apache.beam.sdk">Pipeline.PipelineVisitor</a></span></code>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
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<th class="colLast" scope="col">Constructor and Description</th>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#Pipeline-org.apache.beam.sdk.options.PipelineOptions-">Pipeline</a></span>(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd">&nbsp;</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>&lt;OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;<br>OutputT</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#apply-org.apache.beam.sdk.transforms.PTransform-">apply</a></span>(<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,OutputT&gt;&nbsp;root)</code>
<div class="block">Like <a href="../../../../org/apache/beam/sdk/Pipeline.html#apply-java.lang.String-org.apache.beam.sdk.transforms.PTransform-"><code>apply(String, PTransform)</code></a> but the transform node in the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> graph
will be named according to <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html#getName--"><code>PTransform.getName()</code></a>.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>&lt;OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;<br>OutputT</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#apply-java.lang.String-org.apache.beam.sdk.transforms.PTransform-">apply</a></span>(java.lang.String&nbsp;name,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,OutputT&gt;&nbsp;root)</code>
<div class="block">Adds a root <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a>, such as <a href="../../../../org/apache/beam/sdk/io/Read.html" title="class in org.apache.beam.sdk.io"><code>Read</code></a> or <a href="../../../../org/apache/beam/sdk/transforms/Create.html" title="class in org.apache.beam.sdk.transforms"><code>Create</code></a>, to this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static &lt;InputT extends <a href="../../../../org/apache/beam/sdk/values/PInput.html" title="interface in org.apache.beam.sdk.values">PInput</a>,OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;<br>OutputT</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#applyTransform-InputT-org.apache.beam.sdk.transforms.PTransform-">applyTransform</a></span>(InputT&nbsp;input,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super InputT,OutputT&gt;&nbsp;transform)</code>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static &lt;InputT extends <a href="../../../../org/apache/beam/sdk/values/PInput.html" title="interface in org.apache.beam.sdk.values">PInput</a>,OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;<br>OutputT</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#applyTransform-java.lang.String-InputT-org.apache.beam.sdk.transforms.PTransform-">applyTransform</a></span>(java.lang.String&nbsp;name,
InputT&nbsp;input,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super InputT,OutputT&gt;&nbsp;transform)</code>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#begin--">begin</a></span>()</code>
<div class="block">Returns a <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values"><code>PBegin</code></a> owned by this Pipeline.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#create--">create</a></span>()</code>
<div class="block">Constructs a pipeline from default <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#create-org.apache.beam.sdk.options.PipelineOptions-">create</a></span>(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</code>
<div class="block">Constructs a pipeline from the provided <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#forTransformHierarchy-org.apache.beam.sdk.runners.TransformHierarchy-org.apache.beam.sdk.options.PipelineOptions-">forTransformHierarchy</a></span>(org.apache.beam.sdk.runners.TransformHierarchy&nbsp;transforms,
<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#getCoderRegistry--">getCoderRegistry</a></span>()</code>
<div class="block">Returns the <a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders"><code>CoderRegistry</code></a> that this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> uses.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><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/Pipeline.html#getOptions--">getOptions</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/beam/sdk/schemas/SchemaRegistry.html" title="class in org.apache.beam.sdk.schemas">SchemaRegistry</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#getSchemaRegistry--">getSchemaRegistry</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#replaceAll-java.util.List-">replaceAll</a></span>(java.util.List&lt;org.apache.beam.sdk.runners.PTransformOverride&gt;&nbsp;overrides)</code>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/beam/sdk/PipelineResult.html" title="interface in org.apache.beam.sdk">PipelineResult</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#run--">run</a></span>()</code>
<div class="block">Runs this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> according to the <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a> used to create the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> via <a href="../../../../org/apache/beam/sdk/Pipeline.html#create-org.apache.beam.sdk.options.PipelineOptions-"><code>create(PipelineOptions)</code></a>.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/beam/sdk/PipelineResult.html" title="interface in org.apache.beam.sdk">PipelineResult</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#run-org.apache.beam.sdk.options.PipelineOptions-">run</a></span>(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</code>
<div class="block">Runs this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> using the given <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>, using the runner specified
by the options.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#setCoderRegistry-org.apache.beam.sdk.coders.CoderRegistry-">setCoderRegistry</a></span>(<a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a>&nbsp;coderRegistry)</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">this should never be used - every <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> has a registry throughout its
lifetime.</span></div>
</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#toString--">toString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/beam/sdk/Pipeline.html#traverseTopologically-org.apache.beam.sdk.Pipeline.PipelineVisitor-">traverseTopologically</a></span>(<a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html" title="interface in org.apache.beam.sdk">Pipeline.PipelineVisitor</a>&nbsp;visitor)</code>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b></div>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<pre>protected&nbsp;Pipeline(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</pre>
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<pre>public static&nbsp;<a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a>&nbsp;create()</pre>
<div class="block">Constructs a pipeline from default <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>.</div>
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<pre>public static&nbsp;<a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a>&nbsp;create(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</pre>
<div class="block">Constructs a pipeline from the provided <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>.</div>
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<pre>public&nbsp;<a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>&nbsp;begin()</pre>
<div class="block">Returns a <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values"><code>PBegin</code></a> owned by this Pipeline. This serves as the input of a root <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> such as <a href="../../../../org/apache/beam/sdk/io/Read.html" title="class in org.apache.beam.sdk.io"><code>Read</code></a> or <a href="../../../../org/apache/beam/sdk/transforms/Create.html" title="class in org.apache.beam.sdk.transforms"><code>Create</code></a>.</div>
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<pre>public&nbsp;&lt;OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;&nbsp;OutputT&nbsp;apply(<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,OutputT&gt;&nbsp;root)</pre>
<div class="block">Like <a href="../../../../org/apache/beam/sdk/Pipeline.html#apply-java.lang.String-org.apache.beam.sdk.transforms.PTransform-"><code>apply(String, PTransform)</code></a> but the transform node in the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> graph
will be named according to <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html#getName--"><code>PTransform.getName()</code></a>.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/beam/sdk/Pipeline.html#apply-java.lang.String-org.apache.beam.sdk.transforms.PTransform-"><code>apply(String, PTransform)</code></a></dd>
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<pre>public&nbsp;&lt;OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;&nbsp;OutputT&nbsp;apply(java.lang.String&nbsp;name,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super <a href="../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,OutputT&gt;&nbsp;root)</pre>
<div class="block">Adds a root <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a>, such as <a href="../../../../org/apache/beam/sdk/io/Read.html" title="class in org.apache.beam.sdk.io"><code>Read</code></a> or <a href="../../../../org/apache/beam/sdk/transforms/Create.html" title="class in org.apache.beam.sdk.transforms"><code>Create</code></a>, to this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a>.
<p>The node in the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> graph will use the provided <code>name</code>. This name is used
in various places, including the monitoring UI, logging, and to stably identify this node in
the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> graph upon update.
<p>Alias for <code>begin().apply(name, root)</code>.</div>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public static&nbsp;<a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk">Pipeline</a>&nbsp;forTransformHierarchy(org.apache.beam.sdk.runners.TransformHierarchy&nbsp;transforms,
<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</pre>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public&nbsp;<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;getOptions()</pre>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public&nbsp;void&nbsp;replaceAll(java.util.List&lt;org.apache.beam.sdk.runners.PTransformOverride&gt;&nbsp;overrides)</pre>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b>
<p>Replaces all nodes that match a <code>PTransformOverride</code> in this pipeline. Overrides are
applied in the order they are present within the list.
<p>After all nodes are replaced, ensures that no nodes in the updated graph match any of the
overrides.</div>
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<pre>public&nbsp;<a href="../../../../org/apache/beam/sdk/PipelineResult.html" title="interface in org.apache.beam.sdk">PipelineResult</a>&nbsp;run()</pre>
<div class="block">Runs this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> according to the <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a> used to create the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> via <a href="../../../../org/apache/beam/sdk/Pipeline.html#create-org.apache.beam.sdk.options.PipelineOptions-"><code>create(PipelineOptions)</code></a>.</div>
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<pre>public&nbsp;<a href="../../../../org/apache/beam/sdk/PipelineResult.html" title="interface in org.apache.beam.sdk">PipelineResult</a>&nbsp;run(<a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options">PipelineOptions</a>&nbsp;options)</pre>
<div class="block">Runs this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> using the given <a href="../../../../org/apache/beam/sdk/options/PipelineOptions.html" title="interface in org.apache.beam.sdk.options"><code>PipelineOptions</code></a>, using the runner specified
by the options.</div>
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<pre>public&nbsp;<a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a>&nbsp;getCoderRegistry()</pre>
<div class="block">Returns the <a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders"><code>CoderRegistry</code></a> that this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> uses.</div>
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<pre>public&nbsp;<a href="../../../../org/apache/beam/sdk/schemas/SchemaRegistry.html" title="class in org.apache.beam.sdk.schemas">SchemaRegistry</a>&nbsp;getSchemaRegistry()</pre>
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<pre>@Deprecated
public&nbsp;void&nbsp;setCoderRegistry(<a href="../../../../org/apache/beam/sdk/coders/CoderRegistry.html" title="class in org.apache.beam.sdk.coders">CoderRegistry</a>&nbsp;coderRegistry)</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;<span class="deprecationComment">this should never be used - every <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> has a registry throughout its
lifetime.</span></div>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public&nbsp;void&nbsp;traverseTopologically(<a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html" title="interface in org.apache.beam.sdk">Pipeline.PipelineVisitor</a>&nbsp;visitor)</pre>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b>
<p>Invokes the <a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html" title="interface in org.apache.beam.sdk"><code>PipelineVisitor's</code></a> <a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html#visitPrimitiveTransform-org.apache.beam.sdk.runners.TransformHierarchy.Node-"><code>Pipeline.PipelineVisitor.visitPrimitiveTransform(org.apache.beam.sdk.runners.TransformHierarchy.Node)</code></a> and <a href="../../../../org/apache/beam/sdk/Pipeline.PipelineVisitor.html#visitValue-org.apache.beam.sdk.values.PValue-org.apache.beam.sdk.runners.TransformHierarchy.Node-"><code>Pipeline.PipelineVisitor.visitValue(org.apache.beam.sdk.values.PValue, org.apache.beam.sdk.runners.TransformHierarchy.Node)</code></a> operations on
each of this <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline's</code></a> transform and value nodes, in forward topological
order.
<p>Traversal of the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> causes <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransforms</code></a> and <a href="../../../../org/apache/beam/sdk/values/PValue.html" title="interface in org.apache.beam.sdk.values"><code>PValues</code></a> owned by the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> to be marked as finished, at which point they may no
longer be modified.
<p>Typically invoked by <a href="../../../../org/apache/beam/sdk/PipelineRunner.html" title="class in org.apache.beam.sdk"><code>PipelineRunner</code></a> subclasses.</div>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public static&nbsp;&lt;InputT extends <a href="../../../../org/apache/beam/sdk/values/PInput.html" title="interface in org.apache.beam.sdk.values">PInput</a>,OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;&nbsp;OutputT&nbsp;applyTransform(InputT&nbsp;input,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super InputT,OutputT&gt;&nbsp;transform)</pre>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b>
<p>Like <a href="../../../../org/apache/beam/sdk/Pipeline.html#applyTransform-java.lang.String-InputT-org.apache.beam.sdk.transforms.PTransform-"><code>applyTransform(String, PInput, PTransform)</code></a> but defaulting to the name provided
by the <a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a>.</div>
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<pre><a href="../../../../org/apache/beam/sdk/annotations/Internal.html" title="annotation in org.apache.beam.sdk.annotations">@Internal</a>
public static&nbsp;&lt;InputT extends <a href="../../../../org/apache/beam/sdk/values/PInput.html" title="interface in org.apache.beam.sdk.values">PInput</a>,OutputT extends <a href="../../../../org/apache/beam/sdk/values/POutput.html" title="interface in org.apache.beam.sdk.values">POutput</a>&gt;&nbsp;OutputT&nbsp;applyTransform(java.lang.String&nbsp;name,
InputT&nbsp;input,
<a href="../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;? super InputT,OutputT&gt;&nbsp;transform)</pre>
<div class="block"><b><i>For internal use only; no backwards-compatibility guarantees.</i></b>
<p>Applies the given <code>PTransform</code> to this input <code>InputT</code> and returns its <code>OutputT</code>. This uses <code>name</code> to identify this specific application of the transform. This
name is used in various places, including the monitoring UI, logging, and to stably identify
this application node in the <a href="../../../../org/apache/beam/sdk/Pipeline.html" title="class in org.apache.beam.sdk"><code>Pipeline</code></a> graph during update.
<p>Each <a href="../../../../org/apache/beam/sdk/values/PInput.html" title="interface in org.apache.beam.sdk.values"><code>PInput</code></a> subclass that provides an <code>apply</code> method should delegate to this
method to ensure proper registration with the <a href="../../../../org/apache/beam/sdk/PipelineRunner.html" title="class in org.apache.beam.sdk"><code>PipelineRunner</code></a>.</div>
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<pre>public&nbsp;java.lang.String&nbsp;toString()</pre>
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<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code>toString</code>&nbsp;in class&nbsp;<code>java.lang.Object</code></dd>
</dl>
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