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| <div class="section" id="module-apache_beam.runners.interactive.display.display_manager"> |
| <span id="apache-beam-runners-interactive-display-display-manager-module"></span><h1>apache_beam.runners.interactive.display.display_manager module<a class="headerlink" href="#module-apache_beam.runners.interactive.display.display_manager" title="Permalink to this headline">¶</a></h1> |
| <p>Manages displaying pipeline graph and execution status on the frontend.</p> |
| <p>This module is experimental. No backwards-compatibility guarantees.</p> |
| <dl class="class"> |
| <dt id="apache_beam.runners.interactive.display.display_manager.DisplayManager"> |
| <em class="property">class </em><code class="descclassname">apache_beam.runners.interactive.display.display_manager.</code><code class="descname">DisplayManager</code><span class="sig-paren">(</span><em>pipeline_proto</em>, <em>pipeline_analyzer</em>, <em>cache_manager</em>, <em>pipeline_graph_renderer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/interactive/display/display_manager.html#DisplayManager"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.runners.interactive.display.display_manager.DisplayManager" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference external" href="https://docs.python.org/2/library/functions.html#object" title="(in Python v2.7)"><code class="xref py py-class docutils literal"><span class="pre">object</span></code></a></p> |
| <p>Manages displaying pipeline graph and execution status on the frontend.</p> |
| <p>Constructor of DisplayManager.</p> |
| <table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first last simple"> |
| <li><strong>pipeline_proto</strong> – (Pipeline proto)</li> |
| <li><strong>pipeline_analyzer</strong> – (PipelineAnalyzer) the pipeline analyzer that |
| corresponds to this round of execution. This will provide more |
| detailed informations about the pipeline</li> |
| <li><strong>cache_manager</strong> – (interactive_runner.CacheManager) DisplayManager fetches |
| the latest status of pipeline execution by querying cache_manager.</li> |
| <li><strong>pipeline_graph_renderer</strong> – (pipeline_graph_renderer.PipelineGraphRenderer) |
| decides how a pipeline graph is rendered.</li> |
| </ul> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| <dl class="method"> |
| <dt id="apache_beam.runners.interactive.display.display_manager.DisplayManager.start_periodic_update"> |
| <code class="descname">start_periodic_update</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/interactive/display/display_manager.html#DisplayManager.start_periodic_update"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.runners.interactive.display.display_manager.DisplayManager.start_periodic_update" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Start a thread that periodically updates the display.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.runners.interactive.display.display_manager.DisplayManager.stop_periodic_update"> |
| <code class="descname">stop_periodic_update</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/interactive/display/display_manager.html#DisplayManager.stop_periodic_update"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.runners.interactive.display.display_manager.DisplayManager.stop_periodic_update" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Stop periodically updating the display.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="apache_beam.runners.interactive.display.display_manager.DisplayManager.update_display"> |
| <code class="descname">update_display</code><span class="sig-paren">(</span><em>force=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/runners/interactive/display/display_manager.html#DisplayManager.update_display"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#apache_beam.runners.interactive.display.display_manager.DisplayManager.update_display" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Updates display on the frontend.</p> |
| <p>Retrieves the latest execution status by querying CacheManager and updates |
| display on the fronend. The assumption is that there is only one pipeline in |
| a cell, because it clears up everything in the cell output every update |
| cycle.</p> |
| <table class="docutils field-list" frame="void" rules="none"> |
| <col class="field-name" /> |
| <col class="field-body" /> |
| <tbody valign="top"> |
| <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>force</strong> – (bool) whether to force updating when no stats change happens.</td> |
| </tr> |
| </tbody> |
| </table> |
| </dd></dl> |
| |
| </dd></dl> |
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