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<div class="subTitle">org.apache.beam.sdk.io.hcatalog</div>
<h2 title="Class HCatalogIO.Read" class="title">Class HCatalogIO.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>&lt;<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>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;&gt;</li>
<li>
<ul class="inheritance">
<li>org.apache.beam.sdk.io.hcatalog.HCatalogIO.Read</li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
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<li class="blockList">
<dl>
<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/hcatalog/HCatalogIO.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO</a></dd>
</dl>
<hr>
<br>
<pre>public abstract static class <span class="typeNameLabel">HCatalogIO.Read</span>
extends <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;<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>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;&gt;</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> to read data using HCatalog.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.beam.sdk.io.hcatalog.HCatalogIO.Read">Serialized Form</a></dd>
</dl>
</li>
</ul>
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<h3>Fields inherited from class&nbsp;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>, <a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html#resourceHints">resourceHints</a></code></li>
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<h3>Constructor Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<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/hcatalog/HCatalogIO.Read.html#Read--">Read</a></span>()</code>&nbsp;</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">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</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>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.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>&nbsp;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/hcatalog/HCatalogIO.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>&nbsp;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/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withConfigProperties-java.util.Map-">withConfigProperties</a></span>(java.util.Map&lt;java.lang.String,java.lang.String&gt;&nbsp;configProperties)</code>
<div class="block">Sets the configuration properties like metastore URI.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withDatabase-java.lang.String-">withDatabase</a></span>(java.lang.String&nbsp;database)</code>
<div class="block">Sets the database name.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withFilter-java.lang.String-">withFilter</a></span>(java.lang.String&nbsp;filter)</code>
<div class="block">Sets the filter details.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withPartitionCols-java.util.List-">withPartitionCols</a></span>(java.util.List&lt;java.lang.String&gt;&nbsp;partitionCols)</code>
<div class="block">Set the names of the columns that are partitions.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withPollingInterval-org.joda.time.Duration-">withPollingInterval</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>&nbsp;pollingInterval)</code>
<div class="block">If specified, polling for new partitions will happen at this periodicity.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withTable-java.lang.String-">withTable</a></span>(java.lang.String&nbsp;table)</code>
<div class="block">Sets the table name to read from.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html#withTerminationCondition-org.apache.beam.sdk.transforms.Watch.Growth.TerminationCondition-">withTerminationCondition</a></span>(<a href="../../../../../../org/apache/beam/sdk/transforms/Watch.Growth.TerminationCondition.html" title="interface in org.apache.beam.sdk.transforms">Watch.Growth.TerminationCondition</a>&lt;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>,?&gt;&nbsp;terminationCondition)</code>
<div class="block">If specified, the poll function will stop polling after the termination condition has been
satisfied.</div>
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<h3>Methods inherited from class&nbsp;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#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#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></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Constructor Detail</h3>
<a name="Read--">
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<h4>Read</h4>
<pre>public&nbsp;Read()</pre>
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<h4>withConfigProperties</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withConfigProperties(java.util.Map&lt;java.lang.String,java.lang.String&gt;&nbsp;configProperties)</pre>
<div class="block">Sets the configuration properties like metastore URI.</div>
</li>
</ul>
<a name="withDatabase-java.lang.String-">
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<h4>withDatabase</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withDatabase(java.lang.String&nbsp;database)</pre>
<div class="block">Sets the database name. This is optional, assumes 'default' database if none specified</div>
</li>
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<a name="withTable-java.lang.String-">
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<h4>withTable</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withTable(java.lang.String&nbsp;table)</pre>
<div class="block">Sets the table name to read from.</div>
</li>
</ul>
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<h4>withFilter</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withFilter(java.lang.String&nbsp;filter)</pre>
<div class="block">Sets the filter details. This is optional, assumes none if not specified</div>
</li>
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<a name="withPollingInterval-org.joda.time.Duration-">
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<h4>withPollingInterval</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withPollingInterval(<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>&nbsp;pollingInterval)</pre>
<div class="block">If specified, polling for new partitions will happen at this periodicity. The returned
PCollection will be unbounded. However if a withTerminationCondition is set along with
pollingInterval, polling will stop after the termination condition has been met.</div>
</li>
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<h4>withPartitionCols</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withPartitionCols(java.util.List&lt;java.lang.String&gt;&nbsp;partitionCols)</pre>
<div class="block">Set the names of the columns that are partitions.</div>
</li>
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<h4>withTerminationCondition</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>&nbsp;withTerminationCondition(<a href="../../../../../../org/apache/beam/sdk/transforms/Watch.Growth.TerminationCondition.html" title="interface in org.apache.beam.sdk.transforms">Watch.Growth.TerminationCondition</a>&lt;<a href="../../../../../../org/apache/beam/sdk/io/hcatalog/HCatalogIO.Read.html" title="class in org.apache.beam.sdk.io.hcatalog">HCatalogIO.Read</a>,?&gt;&nbsp;terminationCondition)</pre>
<div class="block">If specified, the poll function will stop polling after the termination condition has been
satisfied.</div>
</li>
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<a name="expand-org.apache.beam.sdk.values.PBegin-">
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<h4>expand</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/beam/sdk/values/PCollection.html" title="class in org.apache.beam.sdk.values">PCollection</a>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;&nbsp;expand(<a href="../../../../../../org/apache/beam/sdk/values/PBegin.html" title="class in org.apache.beam.sdk.values">PBegin</a>&nbsp;input)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<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>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;<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>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;&gt;</code></dd>
</dl>
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<h4>populateDisplayData</h4>
<pre>public&nbsp;void&nbsp;populateDisplayData(<a href="../../../../../../org/apache/beam/sdk/transforms/display/DisplayData.Builder.html" title="interface in org.apache.beam.sdk.transforms.display">DisplayData.Builder</a>&nbsp;builder)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<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>&nbsp;in interface&nbsp;<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>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/beam/sdk/transforms/PTransform.html" title="class in org.apache.beam.sdk.transforms">PTransform</a>&lt;<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>&lt;org.apache.hive.hcatalog.data.HCatRecord&gt;&gt;</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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