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

Class TreeReaderFactory.UnionTreeReader

java.lang.Object

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

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

Enclosing class:

TreeReaderFactory

protected static class TreeReaderFactory.UnionTreeReader
extends TreeReaderFactory.TreeReader

Field Summary

Fields

Modifier and Type	Field and Description
protected TreeReaderFactory.TreeReader[]	fields
protected org.apache.hadoop.hive.ql.io.orc.RunLengthByteReader	tags

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 previousVector, 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

fields

protected final TreeReaderFactory.TreeReader[] fields

tags

protected org.apache.hadoop.hive.ql.io.orc.RunLengthByteReader tags

Method Detail

nextVector

public Object nextVector(Object previousVector,
                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:

previousVector - The columnVector object whose isNull value is populated

batchSize - Size of the column vector

Returns:

next column vector

Throws:

IOException