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<div class="subTitle">org.apache.drill.metastore.metadata</div>
<h2 title="Interface TableMetadataProvider" class="title">Interface TableMetadataProvider</h2>
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<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../../org/apache/drill/exec/metastore/store/parquet/ParquetMetadataProvider.html" title="interface in org.apache.drill.exec.metastore.store.parquet">ParquetMetadataProvider</a>, <a href="../../../../../org/apache/drill/exec/metastore/store/parquet/ParquetTableMetadataProvider.html" title="interface in org.apache.drill.exec.metastore.store.parquet">ParquetTableMetadataProvider</a></dd>
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<dd><a href="../../../../../org/apache/drill/exec/store/parquet/BaseParquetMetadataProvider.html" title="class in org.apache.drill.exec.store.parquet">BaseParquetMetadataProvider</a>, <a href="../../../../../org/apache/drill/exec/store/hive/HiveParquetTableMetadataProvider.html" title="class in org.apache.drill.exec.store.hive">HiveParquetTableMetadataProvider</a>, <a href="../../../../../org/apache/drill/exec/metastore/store/MetastoreFileTableMetadataProvider.html" title="class in org.apache.drill.exec.metastore.store">MetastoreFileTableMetadataProvider</a>, <a href="../../../../../org/apache/drill/exec/metastore/store/parquet/MetastoreParquetTableMetadataProvider.html" title="class in org.apache.drill.exec.metastore.store.parquet">MetastoreParquetTableMetadataProvider</a>, <a href="../../../../../org/apache/drill/exec/metastore/store/parquet/ParquetTableMetadataProviderImpl.html" title="class in org.apache.drill.exec.metastore.store.parquet">ParquetTableMetadataProviderImpl</a>, <a href="../../../../../org/apache/drill/exec/metastore/store/SimpleFileTableMetadataProvider.html" title="class in org.apache.drill.exec.metastore.store">SimpleFileTableMetadataProvider</a></dd>
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<pre>public interface <span class="typeNameLabel">TableMetadataProvider</span></pre>
<div class="block">Base interface for providing table, partition, file etc. metadata for specific table.
getPartitionsMetadata(), getFilesMetadata() and other methods which return collections return
empty collection instead of null for the case when required metadata level is not available,
or cannot re obtained using current <a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadataProvider</code></a> instance.</div>
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<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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#checkMetadataVersion--">checkMetadataVersion</a></span>()</code>
<div class="block">Whether metadata actuality should be checked.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getFileMetadata-org.apache.hadoop.fs.Path-">getFileMetadata</a></span>(org.apache.hadoop.fs.Path&nbsp;location)</code>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instance which corresponds to metadata of file for specified location.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getFilesForPartition-org.apache.drill.metastore.metadata.PartitionMetadata-">getFilesForPartition</a></span>(<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&nbsp;partition)</code>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances which belongs to specified partitions.</div>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getFilesMetadataMap--">getFilesMetadataMap</a></span>()</code>
<div class="block">Returns map of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances which provides metadata for specific file and its columns.</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/drill/metastore/metadata/NonInterestingColumnsMetadata.html" title="class in org.apache.drill.metastore.metadata">NonInterestingColumnsMetadata</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getNonInterestingColumnsMetadata--">getNonInterestingColumnsMetadata</a></span>()</code>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/NonInterestingColumnsMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>NonInterestingColumnsMetadata</code></a> instance which provides metadata for non-interesting columns.</div>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getPartitionColumns--">getPartitionColumns</a></span>()</code>
<div class="block">Returns list of partition columns for table from this <a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadataProvider</code></a>.</div>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getPartitionMetadata-org.apache.drill.common.expression.SchemaPath-">getPartitionMetadata</a></span>(<a href="../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&nbsp;columnName)</code>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances which corresponds to partitions for specified column
and provides metadata for specific partitions and its columns.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getPartitionsMetadata--">getPartitionsMetadata</a></span>()</code>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances which provides metadata for specific partitions and its columns.</div>
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<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="../../../../../org/apache/drill/metastore/metadata/SegmentMetadata.html" title="class in org.apache.drill.metastore.metadata">SegmentMetadata</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getSegmentsMetadataMap--">getSegmentsMetadataMap</a></span>()</code>
<div class="block">Returns map of <a href="../../../../../org/apache/drill/metastore/metadata/SegmentMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>SegmentMetadata</code></a> instances which provides metadata for segment and its columns.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadata.html" title="interface in org.apache.drill.metastore.metadata">TableMetadata</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html#getTableMetadata--">getTableMetadata</a></span>()</code>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/TableMetadata.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadata</code></a> instance which provides metadata for table and columns metadata.</div>
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<h4>getTableMetadata</h4>
<pre><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadata.html" title="interface in org.apache.drill.metastore.metadata">TableMetadata</a>&nbsp;getTableMetadata()</pre>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/TableMetadata.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadata</code></a> instance which provides metadata for table and columns metadata.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><a href="../../../../../org/apache/drill/metastore/metadata/TableMetadata.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadata</code></a> instance</dd>
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<h4>getPartitionColumns</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&gt;&nbsp;getPartitionColumns()</pre>
<div class="block">Returns list of partition columns for table from this <a href="../../../../../org/apache/drill/metastore/metadata/TableMetadataProvider.html" title="interface in org.apache.drill.metastore.metadata"><code>TableMetadataProvider</code></a>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of partition columns</dd>
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<h4>getPartitionsMetadata</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&gt;&nbsp;getPartitionsMetadata()</pre>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances which provides metadata for specific partitions and its columns.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances</dd>
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<h4>getPartitionMetadata</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&gt;&nbsp;getPartitionMetadata(<a href="../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>&nbsp;columnName)</pre>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances which corresponds to partitions for specified column
and provides metadata for specific partitions and its columns.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of <a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>PartitionMetadata</code></a> instances which corresponds to partitions for specified column</dd>
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<h4>getFilesMetadataMap</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a>&gt;&nbsp;getFilesMetadataMap()</pre>
<div class="block">Returns map of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances which provides metadata for specific file and its columns.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>map of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances</dd>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="../../../../../org/apache/drill/metastore/metadata/SegmentMetadata.html" title="class in org.apache.drill.metastore.metadata">SegmentMetadata</a>&gt;&nbsp;getSegmentsMetadataMap()</pre>
<div class="block">Returns map of <a href="../../../../../org/apache/drill/metastore/metadata/SegmentMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>SegmentMetadata</code></a> instances which provides metadata for segment and its columns.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>map of <a href="../../../../../org/apache/drill/metastore/metadata/SegmentMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>SegmentMetadata</code></a> instances</dd>
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<pre><a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a>&nbsp;getFileMetadata(org.apache.hadoop.fs.Path&nbsp;location)</pre>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instance which corresponds to metadata of file for specified location.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>location</code> - location of the file</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instance which corresponds to metadata of file for specified location</dd>
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<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata">FileMetadata</a>&gt;&nbsp;getFilesForPartition(<a href="../../../../../org/apache/drill/metastore/metadata/PartitionMetadata.html" title="class in org.apache.drill.metastore.metadata">PartitionMetadata</a>&nbsp;partition)</pre>
<div class="block">Returns list of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances which belongs to specified partitions.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>partition</code> - partition which</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>list of <a href="../../../../../org/apache/drill/metastore/metadata/FileMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>FileMetadata</code></a> instances which belongs to specified partitions</dd>
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<pre><a href="../../../../../org/apache/drill/metastore/metadata/NonInterestingColumnsMetadata.html" title="class in org.apache.drill.metastore.metadata">NonInterestingColumnsMetadata</a>&nbsp;getNonInterestingColumnsMetadata()</pre>
<div class="block">Returns <a href="../../../../../org/apache/drill/metastore/metadata/NonInterestingColumnsMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>NonInterestingColumnsMetadata</code></a> instance which provides metadata for non-interesting columns.</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd><a href="../../../../../org/apache/drill/metastore/metadata/NonInterestingColumnsMetadata.html" title="class in org.apache.drill.metastore.metadata"><code>NonInterestingColumnsMetadata</code></a> instance</dd>
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<pre>boolean&nbsp;checkMetadataVersion()</pre>
<div class="block">Whether metadata actuality should be checked.</div>
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<dd>true if metadata actuality should be checked</dd>
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