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| <div class="subTitle">org.apache.drill.exec.store.parquet.columnreaders</div> |
| <h2 title="Class ParquetColumnMetadata" class="title">Class ParquetColumnMetadata</h2> |
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| <li>org.apache.drill.exec.store.parquet.columnreaders.ParquetColumnMetadata</li> |
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| <pre>public class <span class="typeNameLabel">ParquetColumnMetadata</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Represents a single column read from the Parquet file by the record reader.</div> |
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| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#UNDEFINED_LENGTH">UNDEFINED_LENGTH</a></span></code> </td> |
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| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#ParquetColumnMetadata-org.apache.parquet.column.ColumnDescriptor-">ParquetColumnMetadata</a></span>(org.apache.parquet.column.ColumnDescriptor column)</code> </td> |
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| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#getDataTypeLength--">getDataTypeLength</a></span>()</code> |
| <div class="block">Returns data type length for a given <code>ColumnDescriptor</code> and it's corresponding |
| <code>SchemaElement</code>.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../../../org/apache/drill/exec/record/MaterializedField.html" title="class in org.apache.drill.exec.record">MaterializedField</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#getField--">getField</a></span>()</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#getTypeLengthInBits-org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName-">getTypeLengthInBits</a></span>(org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName type)</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#isFixedLength--">isFixedLength</a></span>()</code> </td> |
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| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#isRepeated--">isRepeated</a></span>()</code> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/columnreaders/ParquetColumnMetadata.html#resolveDrillType-java.util.Map-org.apache.drill.exec.server.options.OptionManager-">resolveDrillType</a></span>(<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><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.parquet.format.SchemaElement> schemaElements, |
| <a href="../../../../../../../org/apache/drill/exec/server/options/OptionManager.html" title="interface in org.apache.drill.exec.server.options">OptionManager</a> options)</code> </td> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| <h3>Field Detail</h3> |
| <a name="UNDEFINED_LENGTH"> |
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| </a> |
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| <li class="blockList"> |
| <h4>UNDEFINED_LENGTH</h4> |
| <pre>public static final int UNDEFINED_LENGTH</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../constant-values.html#org.apache.drill.exec.store.parquet.columnreaders.ParquetColumnMetadata.UNDEFINED_LENGTH">Constant Field Values</a></dd> |
| </dl> |
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| <a name="ParquetColumnMetadata-org.apache.parquet.column.ColumnDescriptor-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>ParquetColumnMetadata</h4> |
| <pre>public ParquetColumnMetadata(org.apache.parquet.column.ColumnDescriptor column)</pre> |
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| <h4>resolveDrillType</h4> |
| <pre>public void resolveDrillType(<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><<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.parquet.format.SchemaElement> schemaElements, |
| <a href="../../../../../../../org/apache/drill/exec/server/options/OptionManager.html" title="interface in org.apache.drill.exec.server.options">OptionManager</a> options)</pre> |
| </li> |
| </ul> |
| <a name="getTypeLengthInBits-org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName-"> |
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| </a> |
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| <h4>getTypeLengthInBits</h4> |
| <pre>public static int getTypeLengthInBits(org.apache.parquet.schema.PrimitiveType.PrimitiveTypeName type)</pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - </dd> |
| <dd><code>type</code> - a fixed length type from the parquet library enum</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length in pageDataByteArray of the type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getDataTypeLength--"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>getDataTypeLength</h4> |
| <pre>public int getDataTypeLength()</pre> |
| <div class="block">Returns data type length for a given <code>ColumnDescriptor</code> and it's corresponding |
| <code>SchemaElement</code>. Neither is enough information alone as the max |
| repetition level (indicating if it is an array type) is in the ColumnDescriptor and |
| the length of a fixed width field is stored at the schema level.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the length if fixed width, else <tt>UNDEFINED_LENGTH</tt> (-1)</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="isFixedLength--"> |
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| <h4>isFixedLength</h4> |
| <pre>public boolean isFixedLength()</pre> |
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| </a> |
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| <h4>isRepeated</h4> |
| <pre>public boolean isRepeated()</pre> |
| </li> |
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| <a name="getField--"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>getField</h4> |
| <pre>public <a href="../../../../../../../org/apache/drill/exec/record/MaterializedField.html" title="class in org.apache.drill.exec.record">MaterializedField</a> getField()</pre> |
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