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<div class="subTitle">org.apache.beam.sdk.io.elasticsearch</div>
<h2 title="Class ElasticsearchIO" class="title">Class ElasticsearchIO</h2>
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<li>java.lang.Object</li>
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<li>org.apache.beam.sdk.io.elasticsearch.ElasticsearchIO</li>
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<pre><a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html" title="annotation in org.apache.beam.sdk.annotations">@Experimental</a>(<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.html#value--">value</a>=<a href="../../../../../../org/apache/beam/sdk/annotations/Experimental.Kind.html#SOURCE_SINK">SOURCE_SINK</a>)
public class <span class="typeNameLabel">ElasticsearchIO</span>
extends java.lang.Object</pre>
<div class="block">Transforms for reading and writing data from/to Elasticsearch.
<h3>Reading from Elasticsearch</h3>
<p><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.html#read--"><code>ElasticsearchIO.read()</code></a> returns a bounded <a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values"><code>PCollection&lt;String&gt;</code></a> representing JSON documents.
<p>To configure the <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.html#read--"><code>read()</code></a>, you have to provide a connection configuration
containing the HTTP address of the instances, an index name and a type. The following example
illustrates options for configuring the source:
<pre><code>
pipeline.apply(ElasticsearchIO.read().withConnectionConfiguration(
ElasticsearchIO.ConnectionConfiguration.create("http://host:9200", "my-index", "my-type")
)
</code></pre>
<p>The connection configuration also accepts optional configuration: <code>withUsername()</code> and
<code>withPassword()</code>.
<p>You can also specify a query on the <code>read()</code> using <code>withQuery()</code>.
<h3>Writing to Elasticsearch</h3>
<p>To write documents to Elasticsearch, use <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.html#write--"><code>ElasticsearchIO.write()</code></a>, which writes JSON documents from a <a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values"><code>PCollection&lt;String&gt;</code></a> (which can be bounded or unbounded).
<p>To configure <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.html#write--"><code>ElasticsearchIO.write()</code></a>, similar to the read, you
have to provide a connection configuration. For instance:
<pre><code>
pipeline
.apply(...)
.apply(ElasticsearchIO.write().withConnectionConfiguration(
ElasticsearchIO.ConnectionConfiguration.create("http://host:9200", "my-index", "my-type")
)
</code></pre>
<p>Optionally, you can provide <code>withBatchSize()</code> and <code>withBatchSizeBytes()</code> to
specify the size of the write batch in number of documents or in bytes.
<p>Optionally, you can provide an <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Write.FieldValueExtractFn.html" title="interface in org.apache.beam.sdk.io.elasticsearch"><code>ElasticsearchIO.Write.FieldValueExtractFn</code></a> using <code>withIdFn()</code> that will be run to extract the id value out of the provided document rather than
using the document id auto-generated by Elasticsearch.
<p>Optionally, you can provide <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Write.FieldValueExtractFn.html" title="interface in org.apache.beam.sdk.io.elasticsearch"><code>ElasticsearchIO.Write.FieldValueExtractFn</code></a> using <code>withIndexFn()</code> or <code>withTypeFn()</code> to enable per-document routing to the target Elasticsearch
index (all versions) and type (version &gt; 6). Support for type routing was removed in
Elasticsearch 6 (see
https://www.elastic.co/blog/index-type-parent-child-join-now-future-in-elasticsearch)
<p>When {withUsePartialUpdate()} is enabled, the input document must contain an id field and
<code>withIdFn()</code> must be used to allow its extraction by the ElasticsearchIO.
<p>Optionally, <code>withSocketTimeout()</code> can be used to override the default retry timeout and
socket timeout of 30000ms. <code>withConnectTimeout()</code> can be used to override the default
connect timeout of 1000ms.</div>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.BoundedElasticsearchSource.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.BoundedElasticsearchSource</a></span></code>
<div class="block">A <a href="../../../../../../org/apache/beam/sdk/io/BoundedSource.html" title="class in org.apache.beam.sdk.io"><code>BoundedSource</code></a> reading from Elasticsearch.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.ConnectionConfiguration.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.ConnectionConfiguration</a></span></code>
<div class="block">A POJO describing a connection configuration to Elasticsearch.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a></span></code>
<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>
</td>
</tr>
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<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.RetryConfiguration.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.RetryConfiguration</a></span></code>
<div class="block">A POJO encapsulating a configuration for retry behavior when issuing requests to ES.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Write.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Write</a></span></code>
<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> writing data to Elasticsearch.</div>
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<td class="colFirst"><code>static <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.html#read--">read</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Write.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Write</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.html#write--">write</a></span>()</code>&nbsp;</td>
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<h4>read</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Read.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Read</a>&nbsp;read()</pre>
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<h4>write</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/elasticsearch/ElasticsearchIO.Write.html" title="class in org.apache.beam.sdk.io.elasticsearch">ElasticsearchIO.Write</a>&nbsp;write()</pre>
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