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| <section id="module-apache_beam.io.flink.flink_streaming_impulse_source"> |
| <span id="apache-beam-io-flink-flink-streaming-impulse-source-module"></span><h1>apache_beam.io.flink.flink_streaming_impulse_source module<a class="headerlink" href="#module-apache_beam.io.flink.flink_streaming_impulse_source" title="Link to this heading"></a></h1> |
| <p>A PTransform that provides an unbounded, streaming source of empty byte arrays.</p> |
| <p>This can only be used with the flink runner.</p> |
| <dl class="py class"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource"> |
| <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">apache_beam.io.flink.flink_streaming_impulse_source.</span></span><span class="sig-name descname"><span class="pre">FlinkStreamingImpulseSource</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">label</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.13)"><span class="pre">None</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </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/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource" 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> |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.URN"> |
| <span class="sig-name descname"><span class="pre">URN</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'flink:transform:streaming_impulse:v1'</span></em><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.URN" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py attribute"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.config"> |
| <span class="sig-name descname"><span class="pre">config</span></span><em class="property"><span class="p"><span class="pre">:</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Dict" title="(in Python v3.13)"><span class="pre">Dict</span></a><span class="p"><span class="pre">[</span></span><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/typing.html#typing.Any" title="(in Python v3.13)"><span class="pre">Any</span></a><span class="p"><span class="pre">]</span></span></em><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">{}</span></em><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.config" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.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">pbegin</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.expand"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.expand" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.get_windowing"> |
| <span class="sig-name descname"><span class="pre">get_windowing</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">unused_inputs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.get_windowing"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.get_windowing" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.infer_output_type"> |
| <span class="sig-name descname"><span class="pre">infer_output_type</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">unused_input_type</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.infer_output_type"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.infer_output_type" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.to_runner_api_parameter"> |
| <span class="sig-name descname"><span class="pre">to_runner_api_parameter</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">context</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.to_runner_api_parameter"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.to_runner_api_parameter" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.set_interval_ms"> |
| <span class="sig-name descname"><span class="pre">set_interval_ms</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">interval_ms</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.set_interval_ms"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.set_interval_ms" title="Link to this definition"></a></dt> |
| <dd><p>Sets the interval (in milliseconds) between messages in the stream.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.set_message_count"> |
| <span class="sig-name descname"><span class="pre">set_message_count</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">message_count</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.set_message_count"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.set_message_count" title="Link to this definition"></a></dt> |
| <dd><p>If non-zero, the stream will produce only this many total messages. |
| Otherwise produces an unbounded number of messages.</p> |
| </dd></dl> |
| |
| <dl class="py method"> |
| <dt class="sig sig-object py" id="apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.from_runner_api_parameter"> |
| <em class="property"><span class="pre">static</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">from_runner_api_parameter</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">_ptransform</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">spec_parameter</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">_context</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/apache_beam/io/flink/flink_streaming_impulse_source.html#FlinkStreamingImpulseSource.from_runner_api_parameter"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#apache_beam.io.flink.flink_streaming_impulse_source.FlinkStreamingImpulseSource.from_runner_api_parameter" title="Link to this definition"></a></dt> |
| <dd></dd></dl> |
| |
| </dd></dl> |
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