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| <title>Reader (ORC Core 1.6.3 API)</title> |
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| <div class="subTitle">org.apache.orc</div> |
| <h2 title="Interface Reader" class="title">Interface Reader</h2> |
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| <dt>All Superinterfaces:</dt> |
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| <dt>All Known Implementing Classes:</dt> |
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| <hr> |
| <br> |
| <pre>public interface <span class="typeNameLabel">Reader</span> |
| extends <a href="http://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></pre> |
| <div class="block">The interface for reading ORC files. |
| |
| One Reader can support multiple concurrent RecordReader.</div> |
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| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Interface and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.Options.html" title="class in org.apache.orc">Reader.Options</a></span></code> |
| <div class="block">Options for creating a RecordReader.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
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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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated 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/orc/EncryptionKey.html" title="interface in org.apache.orc">EncryptionKey</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getColumnEncryptionKeys--">getColumnEncryptionKeys</a></span>()</code> |
| <div class="block">Get the list of encryption keys for column encryption.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/CompressionKind.html" title="enum in org.apache.orc">CompressionKind</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getCompressionKind--">getCompressionKind</a></span>()</code> |
| <div class="block">Get the compression kind.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getCompressionSize--">getCompressionSize</a></span>()</code> |
| <div class="block">Get the buffer size for the compression.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getContentLength--">getContentLength</a></span>()</code> |
| <div class="block">Get the length of the file.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getConvertToProlepticGregorian--">getConvertToProlepticGregorian</a></span>()</code> |
| <div class="block">Should the returned values use the proleptic Gregorian calendar?</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/DataMaskDescription.html" title="interface in org.apache.orc">DataMaskDescription</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getDataMasks--">getDataMasks</a></span>()</code> |
| <div class="block">Get the data masks for the unencrypted variant of the data.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getEncryptionVariants--">getEncryptionVariants</a></span>()</code> |
| <div class="block">Get the list of encryption variants for the data.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.FileTail.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.FileTail</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getFileTail--">getFileTail</a></span>()</code> |
| <div class="block">Get the file tail (footer + postscript)</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/OrcFile.Version.html" title="enum in org.apache.orc">OrcFile.Version</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getFileVersion--">getFileVersion</a></span>()</code> |
| <div class="block">Get the file format version.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getMetadataKeys--">getMetadataKeys</a></span>()</code> |
| <div class="block">Get the user metadata keys.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getMetadataSize--">getMetadataSize</a></span>()</code> </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getMetadataValue-java.lang.String-">getMetadataValue</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</code> |
| <div class="block">Get a user metadata value.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getNumberOfRows--">getNumberOfRows</a></span>()</code> |
| <div class="block">Get the number of rows in the file.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.ColumnStatistics.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.ColumnStatistics</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getOrcProtoFileStatistics--">getOrcProtoFileStatistics</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../org/apache/orc/Reader.html#getStatistics--"><code>getStatistics()</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeStatistics.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.StripeStatistics</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getOrcProtoStripeStatistics--">getOrcProtoStripeStatistics</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">Use <a href="../../../org/apache/orc/Reader.html#getStripeStatistics--"><code>getStripeStatistics()</code></a> instead.</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getRawDataSize--">getRawDataSize</a></span>()</code> |
| <div class="block">Get the deserialized data size of the file</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getRawDataSizeFromColIndices-java.util.List-">getRawDataSizeFromColIndices</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> colIds)</code> |
| <div class="block">Get the deserialized data size of the specified columns ids</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getRawDataSizeOfColumns-java.util.List-">getRawDataSizeOfColumns</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> colNames)</code> |
| <div class="block">Get the deserialized data size of the specified columns</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getRowIndexStride--">getRowIndexStride</a></span>()</code> |
| <div class="block">Get the number of rows per a entry in the row index.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/TypeDescription.html" title="class in org.apache.orc">TypeDescription</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getSchema--">getSchema</a></span>()</code> |
| <div class="block">Get the type of rows in this ORC file.</div> |
| </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getSerializedFileFooter--">getSerializedFileFooter</a></span>()</code> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/ColumnStatistics.html" title="interface in org.apache.orc">ColumnStatistics</a>[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getStatistics--">getStatistics</a></span>()</code> |
| <div class="block">Get the statistics about the columns in the file.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeInformation.html" title="interface in org.apache.orc">StripeInformation</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getStripes--">getStripes</a></span>()</code> |
| <div class="block">Get the list of stripes.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getStripeStatistics--">getStripeStatistics</a></span>()</code> |
| <div class="block">Get the stripe statistics for all of the columns.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getStripeStatistics-boolean:A-">getStripeStatistics</a></span>(boolean[] include)</code> |
| <div class="block">Get the stripe statistics from the file.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.Type.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.Type</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getTypes--">getTypes</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="block"><span class="deprecationComment">use getSchema instead</span></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getVariantStripeStatistics-org.apache.orc.EncryptionVariant-">getVariantStripeStatistics</a></span>(<a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a> variant)</code> |
| <div class="block">Get the stripe statistics for a given variant.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getVersionList--">getVersionList</a></span>()</code> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/OrcFile.WriterVersion.html" title="enum in org.apache.orc">OrcFile.WriterVersion</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#getWriterVersion--">getWriterVersion</a></span>()</code> |
| <div class="block">Get the version of the writer of this file.</div> |
| </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#hasMetadataValue-java.lang.String-">hasMetadataValue</a></span>(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</code> |
| <div class="block">Did the user set the given metadata value.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/Reader.Options.html" title="class in org.apache.orc">Reader.Options</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#options--">options</a></span>()</code> |
| <div class="block">Create a default options object that can be customized for creating |
| a RecordReader.</div> |
| </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/RecordReader.html" title="interface in org.apache.orc">RecordReader</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#rows--">rows</a></span>()</code> |
| <div class="block">Create a RecordReader that reads everything with the default options.</div> |
| </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code><a href="../../../org/apache/orc/RecordReader.html" title="interface in org.apache.orc">RecordReader</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#rows-org.apache.orc.Reader.Options-">rows</a></span>(<a href="../../../org/apache/orc/Reader.Options.html" title="class in org.apache.orc">Reader.Options</a> options)</code> |
| <div class="block">Create a RecordReader that uses the options given.</div> |
| </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../org/apache/orc/Reader.html#writerUsedProlepticGregorian--">writerUsedProlepticGregorian</a></span>()</code> |
| <div class="block">Was the file written using the proleptic Gregorian calendar.</div> |
| </td> |
| </tr> |
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| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.io.Closeable"> |
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| </a> |
| <h3>Methods inherited from interface java.io.<a href="http://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></h3> |
| <code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true#close--" title="class or interface in java.io">close</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
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| <!-- ============ METHOD DETAIL ========== --> |
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| <h3>Method Detail</h3> |
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| <ul class="blockList"> |
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| <h4>getNumberOfRows</h4> |
| <pre>long getNumberOfRows()</pre> |
| <div class="block">Get the number of rows in the file.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of rows</dd> |
| </dl> |
| </li> |
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| <h4>getRawDataSize</h4> |
| <pre>long getRawDataSize()</pre> |
| <div class="block">Get the deserialized data size of the file</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>raw data size</dd> |
| </dl> |
| </li> |
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| <h4>getRawDataSizeOfColumns</h4> |
| <pre>long getRawDataSizeOfColumns(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> colNames)</pre> |
| <div class="block">Get the deserialized data size of the specified columns</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>colNames</code> - the list of column names</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>raw data size of columns</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getRawDataSizeFromColIndices-java.util.List-"> |
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| <pre>long getRawDataSizeFromColIndices(<a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> colIds)</pre> |
| <div class="block">Get the deserialized data size of the specified columns ids</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>colIds</code> - - internal column id (check orcfiledump for column ids)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>raw data size of columns</dd> |
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| </li> |
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| <a name="getMetadataKeys--"> |
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| </a> |
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| <h4>getMetadataKeys</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>> getMetadataKeys()</pre> |
| <div class="block">Get the user metadata keys.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the set of metadata keys</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMetadataValue-java.lang.String-"> |
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| <h4>getMetadataValue</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a> getMetadataValue(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</pre> |
| <div class="block">Get a user metadata value.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - a key given by the user</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the bytes associated with the given key</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="hasMetadataValue-java.lang.String-"> |
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| <h4>hasMetadataValue</h4> |
| <pre>boolean hasMetadataValue(<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> key)</pre> |
| <div class="block">Did the user set the given metadata value.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>key</code> - the key to check</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true if the metadata value was set</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getCompressionKind</h4> |
| <pre><a href="../../../org/apache/orc/CompressionKind.html" title="enum in org.apache.orc">CompressionKind</a> getCompressionKind()</pre> |
| <div class="block">Get the compression kind.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the kind of compression in the file</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getCompressionSize</h4> |
| <pre>int getCompressionSize()</pre> |
| <div class="block">Get the buffer size for the compression.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>number of bytes to buffer for the compression codec.</dd> |
| </dl> |
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| <h4>getRowIndexStride</h4> |
| <pre>int getRowIndexStride()</pre> |
| <div class="block">Get the number of rows per a entry in the row index.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of rows per an entry in the row index or 0 if there |
| is no row index.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getStripes--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getStripes</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeInformation.html" title="interface in org.apache.orc">StripeInformation</a>> getStripes()</pre> |
| <div class="block">Get the list of stripes.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the information about the stripes in order</dd> |
| </dl> |
| </li> |
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| <h4>getContentLength</h4> |
| <pre>long getContentLength()</pre> |
| <div class="block">Get the length of the file.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the number of bytes in the file</dd> |
| </dl> |
| </li> |
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| <h4>getStatistics</h4> |
| <pre><a href="../../../org/apache/orc/ColumnStatistics.html" title="interface in org.apache.orc">ColumnStatistics</a>[] getStatistics()</pre> |
| <div class="block">Get the statistics about the columns in the file.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the information about the column</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getSchema</h4> |
| <pre><a href="../../../org/apache/orc/TypeDescription.html" title="class in org.apache.orc">TypeDescription</a> getSchema()</pre> |
| <div class="block">Get the type of rows in this ORC file.</div> |
| </li> |
| </ul> |
| <a name="getTypes--"> |
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| </a> |
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| <h4>getTypes</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.Type.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.Type</a>> getTypes()</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">use getSchema instead</span></div> |
| <div class="block">Get the list of types contained in the file. The root type is the first |
| type in the list.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the list of flattened types</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getFileVersion--"> |
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| <h4>getFileVersion</h4> |
| <pre><a href="../../../org/apache/orc/OrcFile.Version.html" title="enum in org.apache.orc">OrcFile.Version</a> getFileVersion()</pre> |
| <div class="block">Get the file format version.</div> |
| </li> |
| </ul> |
| <a name="getWriterVersion--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getWriterVersion</h4> |
| <pre><a href="../../../org/apache/orc/OrcFile.WriterVersion.html" title="enum in org.apache.orc">OrcFile.WriterVersion</a> getWriterVersion()</pre> |
| <div class="block">Get the version of the writer of this file.</div> |
| </li> |
| </ul> |
| <a name="getFileTail--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getFileTail</h4> |
| <pre><a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.FileTail.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.FileTail</a> getFileTail()</pre> |
| <div class="block">Get the file tail (footer + postscript)</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>- file tail</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getColumnEncryptionKeys--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getColumnEncryptionKeys</h4> |
| <pre><a href="../../../org/apache/orc/EncryptionKey.html" title="interface in org.apache.orc">EncryptionKey</a>[] getColumnEncryptionKeys()</pre> |
| <div class="block">Get the list of encryption keys for column encryption.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the set of encryption keys</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDataMasks--"> |
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| <h4>getDataMasks</h4> |
| <pre><a href="../../../org/apache/orc/DataMaskDescription.html" title="interface in org.apache.orc">DataMaskDescription</a>[] getDataMasks()</pre> |
| <div class="block">Get the data masks for the unencrypted variant of the data.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the lists of data masks</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getEncryptionVariants--"> |
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| <h4>getEncryptionVariants</h4> |
| <pre><a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a>[] getEncryptionVariants()</pre> |
| <div class="block">Get the list of encryption variants for the data.</div> |
| </li> |
| </ul> |
| <a name="getVariantStripeStatistics-org.apache.orc.EncryptionVariant-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getVariantStripeStatistics</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>> getVariantStripeStatistics(<a href="../../../org/apache/orc/EncryptionVariant.html" title="interface in org.apache.orc">EncryptionVariant</a> variant) |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the stripe statistics for a given variant. The StripeStatistics will |
| have 1 entry for each column in the variant. This enables the user to |
| get the stripe statistics for each variant regardless of which keys are |
| available.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>variant</code> - the encryption variant or null for unencrypted</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of stripe statistics (one per a stripe)</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if the required key is not available</dd> |
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| </li> |
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| </a> |
| <ul class="blockList"> |
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| <h4>options</h4> |
| <pre><a href="../../../org/apache/orc/Reader.Options.html" title="class in org.apache.orc">Reader.Options</a> options()</pre> |
| <div class="block">Create a default options object that can be customized for creating |
| a RecordReader.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a new default Options object</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="rows--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rows</h4> |
| <pre><a href="../../../org/apache/orc/RecordReader.html" title="interface in org.apache.orc">RecordReader</a> rows() |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Create a RecordReader that reads everything with the default options.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a new RecordReader</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
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| <a name="rows-org.apache.orc.Reader.Options-"> |
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| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rows</h4> |
| <pre><a href="../../../org/apache/orc/RecordReader.html" title="interface in org.apache.orc">RecordReader</a> rows(<a href="../../../org/apache/orc/Reader.Options.html" title="class in org.apache.orc">Reader.Options</a> options) |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Create a RecordReader that uses the options given. |
| This method can't be named rows, because many callers used rows(null) |
| before the rows() method was introduced.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>options</code> - the options to read with</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a new RecordReader</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getVersionList--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getVersionList</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>> getVersionList()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>List of integers representing version of the file, in order from major to minor.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMetadataSize--"> |
| <!-- --> |
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| <h4>getMetadataSize</h4> |
| <pre>int getMetadataSize()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Gets the size of metadata, in bytes.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOrcProtoStripeStatistics--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getOrcProtoStripeStatistics</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.StripeStatistics.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.StripeStatistics</a>> getOrcProtoStripeStatistics()</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">Use <a href="../../../org/apache/orc/Reader.html#getStripeStatistics--"><code>getStripeStatistics()</code></a> instead.</span></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Stripe statistics, in original protobuf form.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getStripeStatistics--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getStripeStatistics</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>> getStripeStatistics() |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the stripe statistics for all of the columns.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of the statistics for each stripe in the file</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>getStripeStatistics</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../org/apache/orc/StripeStatistics.html" title="class in org.apache.orc">StripeStatistics</a>> getStripeStatistics(boolean[] include) |
| throws <a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <div class="block">Get the stripe statistics from the file.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>include</code> - null for all columns or an array where the required columns |
| are selected</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a list of the statistics for each stripe in the file</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="http://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getOrcProtoFileStatistics--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>getOrcProtoFileStatistics</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="http://orc.apache.org/api/orc-core/org/apache/orc/OrcProto.ColumnStatistics.html?is-external=true" title="class or interface in org.apache.orc">OrcProto.ColumnStatistics</a>> getOrcProtoFileStatistics()</pre> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> <span class="deprecationComment">Use <a href="../../../org/apache/orc/Reader.html#getStatistics--"><code>getStatistics()</code></a> instead.</span></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>File statistics, in original protobuf form.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSerializedFileFooter--"> |
| <!-- --> |
| </a> |
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| <h4>getSerializedFileFooter</h4> |
| <pre><a href="http://docs.oracle.com/javase/8/docs/api/java/nio/ByteBuffer.html?is-external=true" title="class or interface in java.nio">ByteBuffer</a> getSerializedFileFooter()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Serialized file metadata read from disk for the purposes of caching, etc.</dd> |
| </dl> |
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| <h4>writerUsedProlepticGregorian</h4> |
| <pre>boolean writerUsedProlepticGregorian()</pre> |
| <div class="block">Was the file written using the proleptic Gregorian calendar.</div> |
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| <h4>getConvertToProlepticGregorian</h4> |
| <pre>boolean getConvertToProlepticGregorian()</pre> |
| <div class="block">Should the returned values use the proleptic Gregorian calendar?</div> |
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