org.apache.iotdb.tsfile.read.common.block.column

Class NullColumn

java.lang.Object

org.apache.iotdb.tsfile.read.common.block.column.NullColumn

public class NullColumn
extends Object

This column is used to represent columns that only contain null values. But its positionCount has to be consistent with corresponding valueColumn.

Constructor Summary

Constructors

Constructor and Description
NullColumn()

Method Summary

Modifier and Type	Method and Description
static Column	create(TSDataType dataType, int positionCount)

Methods inherited from class java.lang.Object

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

Constructor Detail

NullColumn

public NullColumn()

Method Detail

create

public static Column create(TSDataType dataType,
                            int positionCount)