org.apache.hadoop.hive.ql.io.orc

Class TreeReaderFactory.MapTreeReader

java.lang.Object

org.apache.hadoop.hive.ql.io.orc.TreeReaderFactory.TreeReader

org.apache.hadoop.hive.ql.io.orc.TreeReaderFactory.MapTreeReader

Enclosing class:

TreeReaderFactory

protected static class TreeReaderFactory.MapTreeReader
extends TreeReaderFactory.TreeReader

Field Summary

Fields

Modifier and Type	Field and Description
protected TreeReaderFactory.TreeReader	keyReader
protected org.apache.hadoop.hive.ql.io.orc.IntegerReader	lengths
protected TreeReaderFactory.TreeReader	valueReader

Fields inherited from class org.apache.hadoop.hive.ql.io.orc.TreeReaderFactory.TreeReader

columnId, present, valuePresent

Method Summary

Methods

Modifier and Type	Method and Description
Object	nextVector(Object previous, long batchSize) Populates the isNull vector array in the previousVector object based on the present stream values.

Methods inherited from class org.apache.hadoop.hive.ql.io.orc.TreeReaderFactory.TreeReader

countNonNulls, seek

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

keyReader

protected final TreeReaderFactory.TreeReader keyReader

valueReader

protected final TreeReaderFactory.TreeReader valueReader

lengths

protected org.apache.hadoop.hive.ql.io.orc.IntegerReader lengths

Method Detail

nextVector

public Object nextVector(Object previous,
                long batchSize)
                  throws IOException

Description copied from class: TreeReaderFactory.TreeReader

Populates the isNull vector array in the previousVector object based on the present stream values. This function is called from all the child readers, and they all set the values based on isNull field value.

Overrides:

nextVector in class TreeReaderFactory.TreeReader

Parameters:

previous - The columnVector object whose isNull value is populated

batchSize - Size of the column vector

Returns:

next column vector

Throws:

IOException