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| |
| <section id="module-apache_beam.runners.direct.sdf_direct_runner"> |
| <span id="apache-beam-runners-direct-sdf-direct-runner-module"></span><h1>apache_beam.runners.direct.sdf_direct_runner module<a class="headerlink" href="#module-apache_beam.runners.direct.sdf_direct_runner" title="Link to this heading"></a></h1> |
| <p>This module contains Splittable DoFn logic that is specific to DirectRunner.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">SplittableParDoOverride</span></span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplittableParDoOverride"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">PTransformOverride</span></code></p> |
| <p>A transform override for ParDo transformss of SplittableDoFns.</p> |
| <p>Replaces the ParDo transform with a SplittableParDo transform that performs |
| SDF specific logic.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride.matches"> |
| <span class="sig-name descname"><span class="pre">matches</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">applied_ptransform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplittableParDoOverride.matches"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride.matches" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride.get_replacement_transform_for_applied_ptransform"> |
| <span class="sig-name descname"><span class="pre">get_replacement_transform_for_applied_ptransform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">applied_ptransform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplittableParDoOverride.get_replacement_transform_for_applied_ptransform"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplittableParDoOverride.get_replacement_transform_for_applied_ptransform" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplittableParDo"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">SplittableParDo</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">ptransform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplittableParDo"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplittableParDo" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal notranslate"><span class="pre">PTransform</span></code></a></p> |
| <p>A transform that processes a PCollection using a Splittable DoFn.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplittableParDo.expand"> |
| <span class="sig-name descname"><span class="pre">expand</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pcoll</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplittableParDo.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplittableParDo.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ElementAndRestriction"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ElementAndRestriction</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">restriction</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">watermark_estimator_state</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ElementAndRestriction"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ElementAndRestriction" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.13)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p> |
| <p>A holder for an element, restriction, and watermark estimator state.</p> |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">PairWithRestrictionFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">do_fn</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#PairWithRestrictionFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <p>A transform that pairs each element with a restriction.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn.start_bundle"> |
| <span class="sig-name descname"><span class="pre">start_bundle</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#PairWithRestrictionFn.start_bundle"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn.start_bundle" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">window</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">WindowParam</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#PairWithRestrictionFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.PairWithRestrictionFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">SplitRestrictionFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">do_fn</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplitRestrictionFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <p>A transform that perform initial splitting of Splittable DoFn inputs.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn.start_bundle"> |
| <span class="sig-name descname"><span class="pre">start_bundle</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplitRestrictionFn.start_bundle"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn.start_bundle" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element_and_restriction</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SplitRestrictionFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SplitRestrictionFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ExplodeWindowsFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ExplodeWindowsFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">unused_args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">unused_kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ExplodeWindowsFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ExplodeWindowsFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <p>A transform that forces the runner to explode windows.</p> |
| <p>This is done to make sure that Splittable DoFn proceses an element for each of |
| the windows that element belongs to.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ExplodeWindowsFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">window</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">WindowParam</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ExplodeWindowsFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ExplodeWindowsFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.RandomUniqueKeyFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">RandomUniqueKeyFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">unused_args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">unused_kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#RandomUniqueKeyFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.RandomUniqueKeyFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <p>A transform that assigns a unique key to each element.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.RandomUniqueKeyFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">window</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">WindowParam</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#RandomUniqueKeyFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.RandomUniqueKeyFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElements"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ProcessKeyedElements</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sdf</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">element_coder</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">restriction_coder</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">windowing_strategy</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ptransform_args</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ptransform_kwargs</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ptransform_side_inputs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElements"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElements" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal notranslate"><span class="pre">PTransform</span></code></a></p> |
| <p>A primitive transform that performs SplittableDoFn magic.</p> |
| <p>Input to this transform should be a PCollection of keyed ElementAndRestriction |
| objects.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElements.expand"> |
| <span class="sig-name descname"><span class="pre">expand</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pcoll</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElements.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElements.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ProcessKeyedElementsViaKeyedWorkItemsOverride</span></span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElementsViaKeyedWorkItemsOverride"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <code class="xref py py-class docutils literal notranslate"><span class="pre">PTransformOverride</span></code></p> |
| <p>A transform override for ProcessElements transform.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride.matches"> |
| <span class="sig-name descname"><span class="pre">matches</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">applied_ptransform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElementsViaKeyedWorkItemsOverride.matches"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride.matches" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride.get_replacement_transform_for_applied_ptransform"> |
| <span class="sig-name descname"><span class="pre">get_replacement_transform_for_applied_ptransform</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">applied_ptransform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElementsViaKeyedWorkItemsOverride.get_replacement_transform_for_applied_ptransform"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItemsOverride.get_replacement_transform_for_applied_ptransform" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItems"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ProcessKeyedElementsViaKeyedWorkItems</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">process_keyed_elements_transform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElementsViaKeyedWorkItems"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItems" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal notranslate"><span class="pre">PTransform</span></code></a></p> |
| <p>A transform that processes Splittable DoFn input via KeyedWorkItems.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItems.expand"> |
| <span class="sig-name descname"><span class="pre">expand</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pcoll</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessKeyedElementsViaKeyedWorkItems.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessKeyedElementsViaKeyedWorkItems.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessElements"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ProcessElements</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">process_keyed_elements_transform</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessElements"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessElements" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.ptransform.html#apache_beam.transforms.ptransform.PTransform" title="apache_beam.transforms.ptransform.PTransform"><code class="xref py py-class docutils literal notranslate"><span class="pre">PTransform</span></code></a></p> |
| <p>A primitive transform for processing keyed elements or KeyedWorkItems.</p> |
| <p>Will be evaluated by |
| <cite>runners.direct.transform_evaluator._ProcessElementsEvaluator</cite>.</p> |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessElements.expand"> |
| <span class="sig-name descname"><span class="pre">expand</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pcoll</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessElements.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessElements.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessElements.new_process_fn"> |
| <span class="sig-name descname"><span class="pre">new_process_fn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sdf</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessElements.new_process_fn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessElements.new_process_fn" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessFn"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">ProcessFn</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sdf</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">args_for_invoker</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">kwargs_for_invoker</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessFn"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessFn" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference internal" href="apache_beam.transforms.core.html#apache_beam.transforms.core.DoFn" title="apache_beam.transforms.core.DoFn"><code class="xref py py-class docutils literal notranslate"><span class="pre">DoFn</span></code></a></p> |
| <p>A <cite>DoFn</cite> that executes machineary for invoking a Splittable <cite>DoFn</cite>.</p> |
| <p>Input to the <cite>ParDo</cite> step that includes a <cite>ProcessFn</cite> will be a <cite>PCollection</cite> |
| of <cite>ElementAndRestriction</cite> objects.</p> |
| <p>This class is mainly responsible for following. |
| (1) setup environment for properly invoking a Splittable <cite>DoFn</cite>. |
| (2) invoke <cite>process()</cite> method of a Splittable <cite>DoFn</cite>. |
| (3) after the <cite>process()</cite> invocation of the Splittable <cite>DoFn</cite>, determine if a |
| re-invocation of the element is needed. If this is the case, set state and |
| a timer for a re-invocation and hold output watermark till this |
| re-invocation. |
| (4) after the final invocation of a given element clear any previous state set |
| for re-invoking the element and release the output watermark.</p> |
| <dl class="py property"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessFn.step_context"> |
| <em class="property"><span class="pre">property</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">step_context</span></span><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessFn.step_context" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessFn.set_process_element_invoker"> |
| <span class="sig-name descname"><span class="pre">set_process_element_invoker</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">process_element_invoker</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessFn.set_process_element_invoker"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessFn.set_process_element_invoker" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.ProcessFn.process"> |
| <span class="sig-name descname"><span class="pre">process</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">timestamp</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">TimestampParam</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">window</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">WindowParam</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#ProcessFn.process"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.ProcessFn.process" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.runners.direct.sdf_direct_runner.</span></span><span class="sig-name descname"><span class="pre">SDFProcessElementInvoker</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">max_num_outputs</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">max_duration</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SDFProcessElementInvoker"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.13)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p> |
| <p>A utility that invokes SDF <cite>process()</cite> method and requests checkpoints.</p> |
| <p>This class is responsible for invoking the <cite>process()</cite> method of a Splittable |
| <cite>DoFn</cite> and making sure that invocation terminated properly. Based on the input |
| configuration, this class may decide to request a checkpoint for a <cite>process()</cite> |
| execution so that runner can process current output and resume the invocation |
| at a later time.</p> |
| <p>More specifically, when initializing a <cite>SDFProcessElementInvoker</cite>, caller may |
| specify the number of output elements or processing time after which a |
| checkpoint should be requested. This class is responsible for properly |
| requesting a checkpoint based on either of these criteria. |
| When the <cite>process()</cite> call of Splittable <cite>DoFn</cite> ends, this class performs |
| validations to make sure that processing ended gracefully and returns a |
| <cite>SDFProcessElementInvoker.Result</cite> that contains information which can be used |
| by the caller to perform another <cite>process()</cite> invocation for the residual.</p> |
| <p>A <cite>process()</cite> invocation may decide to give up processing voluntarily by |
| returning a <cite>ProcessContinuation</cite> object (see documentation of |
| <cite>ProcessContinuation</cite> for more details). So if a ‘ProcessContinuation’ is |
| produced this class ends the execution and performs steps to finalize the |
| current invocation.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.Result"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">Result</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">residual_restriction</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">process_continuation</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">future_output_watermark</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SDFProcessElementInvoker.Result"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.Result" title="Link to this definition"></a></dt> |
| <dd><p>Bases: <a class="reference external" href="https://docs.python.org/3/library/functions.html#object" title="(in Python v3.13)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p> |
| <p>Returned as a result of a <cite>invoke_process_element()</cite> invocation.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>residual_restriction</strong> – a restriction for the unprocessed part of the |
| element.</p></li> |
| <li><p><strong>process_continuation</strong> – a <cite>ProcessContinuation</cite> if one was returned as the |
| last element of the SDF <cite>process()</cite> invocation.</p></li> |
| <li><p><strong>future_output_watermark</strong> – output watermark of the results that will be |
| produced when invoking the Splittable <cite>DoFn</cite> |
| for the current element with |
| <cite>residual_restriction</cite>.</p></li> |
| </ul> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.test_method"> |
| <span class="sig-name descname"><span class="pre">test_method</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SDFProcessElementInvoker.test_method"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.test_method" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.invoke_process_element"> |
| <span class="sig-name descname"><span class="pre">invoke_process_element</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sdf_invoker</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">output_processor</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">element</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">restriction</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">watermark_estimator_state</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">*</span></span><span class="n"><span class="pre">args</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/direct/sdf_direct_runner.html#SDFProcessElementInvoker.invoke_process_element"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.runners.direct.sdf_direct_runner.SDFProcessElementInvoker.invoke_process_element" title="Link to this definition"></a></dt> |
| <dd><p>Invokes <cite>process()</cite> method of a Splittable <cite>DoFn</cite> for a given element.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters<span class="colon">:</span></dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>sdf_invoker</strong> – a <cite>DoFnInvoker</cite> for the Splittable <cite>DoFn</cite>.</p></li> |
| <li><p><strong>element</strong> – the element to process</p></li> |
| </ul> |
| </dd> |
| <dt class="field-even">Returns<span class="colon">:</span></dt> |
| <dd class="field-even"><p>a <cite>SDFProcessElementInvoker.Result</cite> object.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| </section> |
| |
| |
| </div> |
| </div> |
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