parquet.column.values.bitpacking

Enum Packer

java.lang.Object

java.lang.Enum<Packer>

parquet.column.values.bitpacking.Packer

All Implemented Interfaces:

Serializable, Comparable<Packer>

public enum Packer
extends Enum<Packer>

Factory for packing implementations

Author:

Julien Le Dem

Enum Constant Summary

Enum Constants

Enum Constant and Description
BIG_ENDIAN packers who fill the Least Significant Bit First int and byte packer have the same result on Big Endian architectures
LITTLE_ENDIAN packers who fill the Most Significant Bit first int and byte packer have the same result on Little Endian architectures

Method Summary

Methods

Modifier and Type	Method and Description
abstract BytePacker	newBytePacker(int width)
abstract IntPacker	newIntPacker(int width)
static Packer	valueOf(String name) Returns the enum constant of this type with the specified name.
static Packer[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BIG_ENDIAN

public static final Packer BIG_ENDIAN

packers who fill the Least Significant Bit First int and byte packer have the same result on Big Endian architectures

LITTLE_ENDIAN

public static final Packer LITTLE_ENDIAN

packers who fill the Most Significant Bit first int and byte packer have the same result on Little Endian architectures

Method Detail

values

public static Packer[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Packer c : Packer.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static Packer valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

newIntPacker

public abstract IntPacker newIntPacker(int width)

Parameters:

width - the width in bits of the packed values

Returns:

an int based packer

newBytePacker

public abstract BytePacker newBytePacker(int width)

Parameters:

width - the width in bits of the packed values

Returns:

a byte based packer