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| <div class="subTitle">org.apache.beam.sdk.io.elasticsearch</div> |
| <h2 title="Class ElasticsearchIO.Read" class="title">Class ElasticsearchIO.Read</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><java.lang.String>></li> |
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| <ul class="inheritance"> |
| <li>org.apache.beam.sdk.io.elasticsearch.ElasticsearchIO.Read</li> |
| </ul> |
| </li> |
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| <div class="description"> |
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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/elasticsearch/ElasticsearchIO.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO</a></dd> |
| </dl> |
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| <br> |
| <pre>public abstract static class <span class="typeNameLabel">ElasticsearchIO.Read</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><java.lang.String>></pre> |
| <div class="block">A <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../serialized-form.html#org.apache.beam.sdk.io.elasticsearch.ElasticsearchIO.Read">Serialized Form</a></dd> |
| </dl> |
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| <!-- --> |
| </a> |
| <h3>Fields inherited from class org.apache.beam.sdk.transforms.<a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a></h3> |
| <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#name">name</a></code></li> |
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| </li> |
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| <tr> |
| <th class="colOne" scope="col">Constructor and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#Read--">Read</a></span>()</code> </td> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <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><java.lang.String></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.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>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</code> |
| <div class="block">Register display data for the given transform or component.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#withBatchSize-long-">withBatchSize</a></span>(long batchSize)</code> |
| <div class="block">Provide a size for the scroll read.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#withConnectionConfiguration-org.apache.beam.sdk.io.elasticsearch.ElasticsearchIO.ConnectionConfiguration-">withConnectionConfiguration</a></span>(<a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.ConnectionConfiguration.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.ConnectionConfiguration</a> connectionConfiguration)</code> |
| <div class="block">Provide the Elasticsearch connection configuration object.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#withMetadata--">withMetadata</a></span>()</code> |
| <div class="block">Include metadata in result json documents.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#withQuery-java.lang.String-">withQuery</a></span>(java.lang.String query)</code> |
| <div class="block">Provide a query used while reading from Elasticsearch.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html#withScrollKeepalive-java.lang.String-">withScrollKeepalive</a></span>(java.lang.String scrollKeepalive)</code> |
| <div class="block">Provide a scroll keepalive.</div> |
| </td> |
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| </a> |
| <h3>Methods inherited from class org.apache.beam.sdk.transforms.<a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a></h3> |
| <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#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#toString--">toString</a>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#validate-org.apache.beam.sdk.options.PipelineOptions-">validate</a></code></li> |
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| <h3>Methods inherited from class java.lang.Object</h3> |
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| <h3>Constructor Detail</h3> |
| <a name="Read--"> |
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| <h4>Read</h4> |
| <pre>public Read()</pre> |
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| <h3>Method Detail</h3> |
| <a name="withConnectionConfiguration-org.apache.beam.sdk.io.elasticsearch.ElasticsearchIO.ConnectionConfiguration-"> |
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| <h4>withConnectionConfiguration</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a> withConnectionConfiguration(<a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.ConnectionConfiguration.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.ConnectionConfiguration</a> connectionConfiguration)</pre> |
| <div class="block">Provide the Elasticsearch connection configuration object.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>connectionConfiguration</code> - a <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.ConnectionConfiguration.html" title="class in org.apache.beam.sdk.io.elasticsearch"><code>ElasticsearchIO.ConnectionConfiguration</code></a> describes a connection |
| configuration to Elasticsearch.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</dd> |
| </dl> |
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| </a> |
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| <h4>withQuery</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a> withQuery(java.lang.String query)</pre> |
| <div class="block">Provide a query used while reading from Elasticsearch.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>query</code> - the query. See <a |
| href="https://www.elastic.co/guide/en/elasticsearch/reference/2.4/query-dsl.html">Query |
| DSL</a></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="withMetadata--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>withMetadata</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a> withMetadata()</pre> |
| <div class="block">Include metadata in result json documents. Document source will be under json node _source.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</dd> |
| </dl> |
| </li> |
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| <h4>withScrollKeepalive</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a> withScrollKeepalive(java.lang.String scrollKeepalive)</pre> |
| <div class="block">Provide a scroll keepalive. See <a |
| href="https://www.elastic.co/guide/en/elasticsearch/reference/2.4/search-request-scroll.html">scroll |
| API</a> Default is "5m". Change this only if you get "No search context found" errors.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>scrollKeepalive</code> - keepalive duration of the scroll</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</dd> |
| </dl> |
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| <h4>withBatchSize</h4> |
| <pre>public <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a> withBatchSize(long batchSize)</pre> |
| <div class="block">Provide a size for the scroll read. See <a |
| href="https://www.elastic.co/guide/en/elasticsearch/reference/2.4/search-request-scroll.html"> |
| scroll API</a> Default is 100. Maximum is 10 000. If documents are small, increasing batch |
| size might improve read performance. If documents are big, you might need to decrease |
| batchSize</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>batchSize</code> - number of documents read in each scroll read</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms"><code>PTransform</code></a> reading data from Elasticsearch.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="expand-org.apache.beam.sdk.values.PBegin-"> |
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| </a> |
| <ul class="blockList"> |
| <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><java.lang.String> 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><java.lang.String>></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-"> |
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| </a> |
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| <h4>populateDisplayData</h4> |
| <pre>public void populateDisplayData(<a href="../../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a> builder)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">PTransform</a></code></span></div> |
| <div class="block">Register display data for the given transform or component. |
| |
| <p><code>populateDisplayData(DisplayData.Builder)</code> is invoked by Pipeline runners to collect |
| display data via <a href="../../../../../../org/apache/beam/sdk/transforms/display/DisplayData.html#from-org.apache.beam.sdk.transforms.display.HasDisplayData-"><code>DisplayData.from(HasDisplayData)</code></a>. Implementations may call <code>super.populateDisplayData(builder)</code> in order to register display data in the current namespace, |
| but should otherwise use <code>subcomponent.populateDisplayData(builder)</code> to use the namespace |
| of the subcomponent. |
| |
| <p>By default, does not register any display data. Implementors may override this method to |
| provide their own display data.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</a></code> in interface <code><a href="../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display">HasDisplayData</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#populateDisplayData-org.apache.beam.sdk.transforms.display.DisplayData.Builder-">populateDisplayData</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><java.lang.String>></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>builder</code> - The builder to populate with display data.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../org/apache/beam/sdk/transforms/display/HasDisplayData.html" title="interface in org.apache.beam.sdk.transforms.display"><code>HasDisplayData</code></a></dd> |
| </dl> |
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