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| <div class="section" id="module-apache_beam.dataframe.partitionings"> |
| <span id="apache-beam-dataframe-partitionings-module"></span><h1>apache_beam.dataframe.partitionings module<a class="headerlink" href="#module-apache_beam.dataframe.partitionings" title="Permalink to this headline">¶</a></h1> |
| <dl class="class"> |
| <dt id="apache_beam.dataframe.partitionings.Partitioning"> |
| <em class="property">class </em><code class="descclassname">apache_beam.dataframe.partitionings.</code><code class="descname">Partitioning</code><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Partitioning"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Partitioning" title="Permalink 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 v3.8)"><code class="xref py py-class docutils literal notranslate"><span class="pre">object</span></code></a></p> |
| <p>A class representing a (consistent) partitioning of dataframe objects.</p> |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Partitioning.is_subpartitioning_of"> |
| <code class="descname">is_subpartitioning_of</code><span class="sig-paren">(</span><em>other</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Partitioning.is_subpartitioning_of"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Partitioning.is_subpartitioning_of" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Returns whether self is a sub-partition of other.</p> |
| <p>Specifically, returns whether something partitioned by self is necissarily |
| also partitioned by other.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Partitioning.partition_fn"> |
| <code class="descname">partition_fn</code><span class="sig-paren">(</span><em>df</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Partitioning.partition_fn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Partitioning.partition_fn" title="Permalink to this definition">¶</a></dt> |
| <dd><p>A callable that actually performs the partitioning of a Frame df.</p> |
| <p>This will be invoked via a FlatMap in conjunction with a GroupKey to |
| achieve the desired partitioning.</p> |
| </dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="class"> |
| <dt id="apache_beam.dataframe.partitionings.Index"> |
| <em class="property">class </em><code class="descclassname">apache_beam.dataframe.partitionings.</code><code class="descname">Index</code><span class="sig-paren">(</span><em>levels=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Index"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Index" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="#apache_beam.dataframe.partitionings.Partitioning" title="apache_beam.dataframe.partitionings.Partitioning"><code class="xref py py-class docutils literal notranslate"><span class="pre">apache_beam.dataframe.partitionings.Partitioning</span></code></a></p> |
| <p>A partitioning by index (either fully or partially).</p> |
| <p>If the set of “levels” of the index to consider is not specified, the entire |
| index is used.</p> |
| <p>These form a partial order, given by</p> |
| <blockquote> |
| <div>Nothing() < Index([i]) < Index([i, j]) < … < Index() < Singleton()</div></blockquote> |
| <p>The ordering is implemented via the is_subpartitioning_of method, where the |
| examples on the right are subpartitionings of the examples on the left above.</p> |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Index.is_subpartitioning_of"> |
| <code class="descname">is_subpartitioning_of</code><span class="sig-paren">(</span><em>other</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Index.is_subpartitioning_of"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Index.is_subpartitioning_of" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Index.partition_fn"> |
| <code class="descname">partition_fn</code><span class="sig-paren">(</span><em>df</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Index.partition_fn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Index.partition_fn" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="class"> |
| <dt id="apache_beam.dataframe.partitionings.Singleton"> |
| <em class="property">class </em><code class="descclassname">apache_beam.dataframe.partitionings.</code><code class="descname">Singleton</code><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Singleton"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Singleton" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="#apache_beam.dataframe.partitionings.Partitioning" title="apache_beam.dataframe.partitionings.Partitioning"><code class="xref py py-class docutils literal notranslate"><span class="pre">apache_beam.dataframe.partitionings.Partitioning</span></code></a></p> |
| <p>A partitioning of all the data into a single partition.</p> |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Singleton.is_subpartitioning_of"> |
| <code class="descname">is_subpartitioning_of</code><span class="sig-paren">(</span><em>other</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Singleton.is_subpartitioning_of"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Singleton.is_subpartitioning_of" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Singleton.partition_fn"> |
| <code class="descname">partition_fn</code><span class="sig-paren">(</span><em>df</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Singleton.partition_fn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Singleton.partition_fn" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
| |
| <dl class="class"> |
| <dt id="apache_beam.dataframe.partitionings.Nothing"> |
| <em class="property">class </em><code class="descclassname">apache_beam.dataframe.partitionings.</code><code class="descname">Nothing</code><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Nothing"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Nothing" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="#apache_beam.dataframe.partitionings.Partitioning" title="apache_beam.dataframe.partitionings.Partitioning"><code class="xref py py-class docutils literal notranslate"><span class="pre">apache_beam.dataframe.partitionings.Partitioning</span></code></a></p> |
| <p>A partitioning imposing no constraints on the actual partitioning.</p> |
| <dl class="method"> |
| <dt id="apache_beam.dataframe.partitionings.Nothing.is_subpartitioning_of"> |
| <code class="descname">is_subpartitioning_of</code><span class="sig-paren">(</span><em>other</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/dataframe/partitionings.html#Nothing.is_subpartitioning_of"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.dataframe.partitionings.Nothing.is_subpartitioning_of" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
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