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

Class DoubleColumnBuilder

java.lang.Object

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

All Implemented Interfaces:

ColumnBuilder

public class DoubleColumnBuilder
extends java.lang.Object
implements ColumnBuilder

Field Summary

Fields

Modifier and Type	Field	Description
static DoubleColumn	NULL_VALUE_BLOCK

Constructor Summary

Constructors

Constructor	Description
DoubleColumnBuilder(ColumnBuilderStatus columnBuilderStatus, int expectedEntries)

Method Summary

Modifier and Type	Method	Description
ColumnBuilder	appendNull()	Appends a null value to the block.
Column	build()	Builds the block.
TSDataType	getDataType()	Get the data type.
long	getRetainedSizeInBytes()	Returns the retained size of this column in memory, including over-allocations.
ColumnBuilder	newColumnBuilderLike(ColumnBuilderStatus columnBuilderStatus)	Creates a new column builder of the same type based on the current usage statistics of this column builder.
ColumnBuilder	write(Column column, int index)	Write value at index of passing column
ColumnBuilder	writeDouble(double value)	Write a double to the current entry;
ColumnBuilder	writeObject(java.lang.Object value)	Write an Object to the current entry, which should be the Double type;
ColumnBuilder	writeTsPrimitiveType(TsPrimitiveType value)	Write a TsPrimitiveType sequences to the current entry;

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.iotdb.tsfile.read.common.block.column.ColumnBuilder

appendNull, writeBinary, writeBoolean, writeFloat, writeInt, writeLong

Field Detail

NULL_VALUE_BLOCK

public static final DoubleColumn NULL_VALUE_BLOCK

Constructor Detail

DoubleColumnBuilder

public DoubleColumnBuilder(ColumnBuilderStatus columnBuilderStatus,
                           int expectedEntries)

Method Detail

writeDouble

public ColumnBuilder writeDouble(double value)

Description copied from interface: ColumnBuilder

Write a double to the current entry;

Specified by:

writeDouble in interface ColumnBuilder

writeObject

public ColumnBuilder writeObject(java.lang.Object value)

Write an Object to the current entry, which should be the Double type;

Specified by:

writeObject in interface ColumnBuilder

write

public ColumnBuilder write(Column column,
                           int index)

Description copied from interface: ColumnBuilder

Write value at index of passing column

Caller should make sure that value at index is not null

Specified by:

write in interface ColumnBuilder

Parameters:

column - source column whose type should be same as ColumnBuilder

index - index of source column to read from

writeTsPrimitiveType

public ColumnBuilder writeTsPrimitiveType(TsPrimitiveType value)

Description copied from interface: ColumnBuilder

Write a TsPrimitiveType sequences to the current entry;

Specified by:

writeTsPrimitiveType in interface ColumnBuilder

appendNull

public ColumnBuilder appendNull()

Description copied from interface: ColumnBuilder

Appends a null value to the block.

Specified by:

appendNull in interface ColumnBuilder

build

public Column build()

Description copied from interface: ColumnBuilder

Builds the block. This method can be called multiple times.

Specified by:

build in interface ColumnBuilder

getDataType

public TSDataType getDataType()

Description copied from interface: ColumnBuilder

Get the data type.

Specified by:

getDataType in interface ColumnBuilder

getRetainedSizeInBytes

public long getRetainedSizeInBytes()

Description copied from interface: ColumnBuilder

Returns the retained size of this column in memory, including over-allocations. This method is called from the inner most execution loop and must be fast.

Specified by:

getRetainedSizeInBytes in interface ColumnBuilder

newColumnBuilderLike

public ColumnBuilder newColumnBuilderLike(ColumnBuilderStatus columnBuilderStatus)

Description copied from interface: ColumnBuilder

Creates a new column builder of the same type based on the current usage statistics of this column builder.

Specified by:

newColumnBuilderLike in interface ColumnBuilder