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| <div class="subTitle">org.apache.beam.sdk.io.gcp.healthcare</div> |
| <h2 title="Class HL7v2IO.ListHL7v2Messages" class="title">Class HL7v2IO.ListHL7v2Messages</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">org.apache.beam.sdk.transforms.PTransform</a><<a href="../../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,<a href="../../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2Message.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2Message</a>>></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.io.gcp.healthcare.HL7v2IO.ListHL7v2Messages</li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd>java.io.Serializable, <a href="../../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></dd> |
| </dl> |
| <dl> |
| <dt>Enclosing class:</dt> |
| <dd><a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2IO</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public static class <span class="typeNameLabel">HL7v2IO.ListHL7v2Messages</span> |
| extends <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,<a href="../../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2Message.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2Message</a>>></pre> |
| <div class="block">List HL7v2 messages in HL7v2 Stores with optional filter. |
| |
| <p>This transform is optimized for splitting of message.list calls for large batches of |
| historical data and assumes rather continuous stream of sendTimes. |
| |
| <p>Note on Benchmarking: The default initial splitting on day will make more queries than |
| necessary when used with very small data sets (or very sparse data sets in the sendTime |
| dimension). If you are looking to get an accurate benchmark be sure to use sufficient volume of |
| data with messages that span sendTimes over a realistic time range (days) |
| |
| <p>Implementation includes overhead for: |
| |
| <ol> |
| <li>two api calls to determine the min/max sendTime of the HL7v2 store at invocation time. |
| <li>initial splitting into non-overlapping time ranges (default daily) to achieve |
| parallelization in separate messages.list calls. |
| </ol> |
| |
| If your use case doesn't lend itself to daily splitting, you can can control initial splitting |
| with <a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.ListHL7v2Messages.html#withInitialSplitDuration-org.joda.time.Duration-"><code>withInitialSplitDuration(Duration)</code></a></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../serialized-form.html#org.apache.beam.sdk.io.gcp.healthcare.HL7v2IO.ListHL7v2Messages">Serialized Form</a></dd> |
| </dl> |
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| <code><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#name">name</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#resourceHints">resourceHints</a></code></li> |
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| <h3>Method Summary</h3> |
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| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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><a href="../../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2Message.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2Message</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.ListHL7v2Messages.html#expand-org.apache.beam.sdk.values.PBegin-">expand</a></span>(<a href="../../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a> input)</code> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.ListHL7v2Messages.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2IO.ListHL7v2Messages</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.ListHL7v2Messages.html#withInitialSplitDuration-org.joda.time.Duration-">withInitialSplitDuration</a></span>(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Duration.html?is-external=true" title="class or interface in org.joda.time">Duration</a> initialSplitDuration)</code> </td> |
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| <code><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#compose-org.apache.beam.sdk.transforms.SerializableFunction-">compose</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#compose-java.lang.String-org.apache.beam.sdk.transforms.SerializableFunction-">compose</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getAdditionalInputs--">getAdditionalInputs</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder--">getDefaultOutputCoder</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-">getDefaultOutputCoder</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getDefaultOutputCoder-InputT-org.apache.beam.sdk.values.PCollection-">getDefaultOutputCoder</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getKindString--">getKindString</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getName--">getName</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#getResourceHints--">getResourceHints</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#setResourceHints-org.apache.beam.sdk.transforms.resourcehints.ResourceHints-">setResourceHints</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#toString--">toString</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-">validate</a>, <a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-java.util.Map-java.util.Map-">validate</a></code></li> |
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| <!-- --> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li> |
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| <!-- --> |
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| <h4>withInitialSplitDuration</h4> |
| <pre>public <a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2IO.ListHL7v2Messages.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2IO.ListHL7v2Messages</a> withInitialSplitDuration(<a href="https://static.javadoc.io/joda-time/joda-time/2.10.10/org/joda/time/Duration.html?is-external=true" title="class or interface in org.joda.time">Duration</a> initialSplitDuration)</pre> |
| </li> |
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| <a name="expand-org.apache.beam.sdk.values.PBegin-"> |
| <!-- --> |
| </a> |
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| <li class="blockList"> |
| <h4>expand</h4> |
| <pre>public <a href="../../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2Message.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2Message</a>> expand(<a href="../../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a> input)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">PTransform</a></code></span></div> |
| <div class="block">Override this method to specify how this <code>PTransform</code> should be expanded on the given |
| <code>InputT</code>. |
| |
| <p>NOTE: This method should not be called directly. Instead apply the <code>PTransform</code> should |
| be applied to the <code>InputT</code> using the <code>apply</code> method. |
| |
| <p>Composite transforms, which are defined in terms of other transforms, should return the |
| output of one of the composed transforms. Non-composite transforms, which do not apply any |
| transforms internally, should return a new unbound output and register evaluators (via |
| backend-specific registration methods).</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html#expand-InputT-">expand</a></code> in class <code><a href="../../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a><<a href="../../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>,<a href="../../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a><<a href="../../../../../../../org/apache/beam/sdk/io/gcp/healthcare/HL7v2Message.html" title="class in org.apache.beam.sdk.io.gcp.healthcare">HL7v2Message</a>>></code></dd> |
| </dl> |
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