pu.RedLib

Interface Reduction<E>

All Known Implementing Classes:

BooleanAND, BooleanBitwiseAND, BooleanBitwiseOR, BooleanBitwiseXOR, BooleanOR, BooleanXOR, ByteBitwiseAND, ByteBitwiseOR, ByteBitwiseXOR, CollectionDifference, CollectionIntersection, CollectionJoin, CollectionUnion, DoubleAverage, DoubleMaximum, DoubleMinimum, DoubleMultiplication, DoubleSubtraction, DoubleSum, FloatAverage, FloatMaximum, FloatMinimum, FloatMultiplication, FloatSubtraction, FloatSum, IntegerAverage, IntegerBitwiseAND, IntegerBitwiseOR, IntegerBitwiseXOR, IntegerMaximum, IntegerMinimum, IntegerMultiplication, IntegerSubtraction, IntegerSum, LongAverage, LongBitwiseAND, LongBitwiseOR, LongBitwiseXOR, LongMaximum, LongMinimum, LongMultiplication, LongSubtraction, LongSum, MapDifference, MapIntersection, MapUnion, SetDifference, SetIntersection, SetUnion, ShortAverage, ShortBitwiseAND, ShortBitwiseOR, ShortBitwiseXOR, ShortMultiplication, ShortSubtraction, ShortSum

public interface Reduction<E>

Defines a reduction and includes a range of built-in reductions (only a few common ones are implemented). Users may also define their own by implementing this interface.

Author:

Vikas Added reductions for minus, multi, bitOR, bitXOR, bitAND; added Float, Short, Byte reductions, Nasser Giacaman, Oliver Sinnen

Field Summary

Fields

Modifier and Type	Field and Description
static Reduction<java.lang.Object[]>	ArrayCOMBINE Combines the elements of two arrays into one array
static Reduction<java.lang.Boolean>	BooleanBITAND Returns the bitwise AND for Boolean
static Reduction<java.lang.Boolean>	BooleanBITOR Returns the bitwise OR for Boolean
static Reduction<java.lang.Boolean>	BooleanBITXOR Returns the bitwise XOR for Boolean
static Reduction<java.lang.Boolean>	BooleanLOGAND Returns the logical AND for Boolean
static Reduction<java.lang.Boolean>	BooleanLOGOR Returns the logical OR Boolean
static Reduction<java.lang.Byte>	ByteBITAND Returns the bitwise AND for Byte
static Reduction<java.lang.Byte>	ByteBITOR Returns the bitwise OR for Byte
static Reduction<java.lang.Byte>	ByteBITXOR Returns the bitwise XOR for Byte
static Reduction<java.lang.Byte>	ByteMAX Returns the maximum for Byte
static Reduction<java.lang.Byte>	ByteMIN Returns the minimum for Byte
static Reduction<java.lang.Byte>	ByteMINUS Returns the minus for Byte Minus results are added
static Reduction<java.lang.Byte>	ByteMULTI Returns the multiplication for Byte
static Reduction<java.lang.Byte>	ByteSUM Returns the sum for Byte
static Reduction<java.lang.Double>	DoubleBITAND Returns the bitwise AND for Double
static Reduction<java.lang.Double>	DoubleBITOR Returns the bitwise OR for Double
static Reduction<java.lang.Double>	DoubleBITXOR Returns the bitwise XOR for Double
static Reduction<java.lang.Double>	DoubleLOGAND Returns the logical AND for Double
static Reduction<java.lang.Double>	DoubleLOGOR Returns the logical OR for Double
static Reduction<java.lang.Double>	DoubleMAX Returns the maximum for Double
static Reduction<java.lang.Double>	DoubleMIN Returns the minimum for Double
static Reduction<java.lang.Double>	DoubleMINUS Returns the minus for Double Minus results are added
static Reduction<java.lang.Double>	DoubleMULTI Returns the multiplication for Double
static Reduction<java.lang.Double>	DoubleSUM Returns the sum for Double
static Reduction<java.lang.Float>	FloatMAX Returns the maximum for Float
static Reduction<java.lang.Float>	FloatMIN Returns the minimum for Float
static Reduction<java.lang.Float>	FloatMINUS Returns the minus for Float Minus results are added
static Reduction<java.lang.Float>	FloatMULTI Returns the multiplication for Float
static Reduction<java.lang.Float>	FloatSUM Returns the sum for Float
static Reduction<java.lang.Integer>	IntegerBITAND Returns the bitwise AND for Integer
static Reduction<java.lang.Integer>	IntegerBITOR Returns the bitwise OR for Integer
static Reduction<java.lang.Integer>	IntegerBITXOR Returns the bitwise XOR for Integer
static Reduction<java.lang.Integer>	IntegerLOGAND Returns the logical AND for Integer
static Reduction<java.lang.Integer>	IntegerLOGOR Returns the logical OR for Integer
static Reduction<java.lang.Integer>	IntegerMAX Returns the maximum for Integer
static Reduction<java.lang.Integer>	IntegerMIN Returns the minimum for Integer
static Reduction<java.lang.Integer>	IntegerMINUS Returns the minus for Integer Minus results are added
static Reduction<java.lang.Integer>	IntegerMULTI Returns the multiplication for Integer
static Reduction<java.lang.Integer>	IntegerSUM Returns the sum for Integer
static Reduction<java.lang.Long>	LongBITAND Returns the bitwise AND for Long
static Reduction<java.lang.Long>	LongBITOR Returns the bitwise OR for Long
static Reduction<java.lang.Long>	LongBITXOR Returns the bitwise XOR for Long
static Reduction<java.lang.Long>	LongLOGOR Returns the logical OR for Long
static Reduction<java.lang.Long>	LongMAX Returns the maximum for Long
static Reduction<java.lang.Long>	LongMIN Returns the minimum for Long
static Reduction<java.lang.Long>	LongMINUS Returns the minus for Long Minus results are added
static Reduction<java.lang.Long>	LongMULTI Returns the multiplication for Long
static Reduction<java.lang.Long>	LongSUM Returns the sum for Long
static Reduction<java.lang.Short>	ShortBITAND Returns the bitwise AND for Short
static Reduction<java.lang.Short>	ShortBITOR Returns the bitwise OR for Short
static Reduction<java.lang.Short>	ShortBITXOR Returns the bitwise XOR for Short
static Reduction<java.lang.Short>	ShortMAX Returns the maximum for Short
static Reduction<java.lang.Short>	ShortMIN Returns the minimum for Short
static Reduction<java.lang.Short>	ShortMINUS Returns the minus for Short Minus results are added
static Reduction<java.lang.Short>	ShortMULTI Returns the multiplication for Short
static Reduction<java.lang.Short>	ShortSUM Returns the sum for Short

Method Summary

Modifier and Type	Method and Description
E	reduce(E first, E second) Specifies a reduction as defined by 2 elements into 1.

Field Detail

IntegerMAX

static final Reduction<java.lang.Integer> IntegerMAX

Returns the maximum for Integer

IntegerMIN

static final Reduction<java.lang.Integer> IntegerMIN

Returns the minimum for Integer

IntegerSUM

static final Reduction<java.lang.Integer> IntegerSUM

Returns the sum for Integer

IntegerMULTI

static final Reduction<java.lang.Integer> IntegerMULTI

Returns the multiplication for Integer

IntegerMINUS

static final Reduction<java.lang.Integer> IntegerMINUS

Returns the minus for Integer Minus results are added

IntegerBITAND

static final Reduction<java.lang.Integer> IntegerBITAND

Returns the bitwise AND for Integer

IntegerBITOR

static final Reduction<java.lang.Integer> IntegerBITOR

Returns the bitwise OR for Integer

IntegerBITXOR

static final Reduction<java.lang.Integer> IntegerBITXOR

Returns the bitwise XOR for Integer

IntegerLOGAND

static final Reduction<java.lang.Integer> IntegerLOGAND

Returns the logical AND for Integer

IntegerLOGOR

static final Reduction<java.lang.Integer> IntegerLOGOR

Returns the logical OR for Integer

DoubleMAX

static final Reduction<java.lang.Double> DoubleMAX

Returns the maximum for Double

DoubleMIN

static final Reduction<java.lang.Double> DoubleMIN

Returns the minimum for Double

DoubleSUM

static final Reduction<java.lang.Double> DoubleSUM

Returns the sum for Double

DoubleMULTI

static final Reduction<java.lang.Double> DoubleMULTI

Returns the multiplication for Double

DoubleMINUS

static final Reduction<java.lang.Double> DoubleMINUS

Returns the minus for Double Minus results are added

DoubleBITAND

static final Reduction<java.lang.Double> DoubleBITAND

Returns the bitwise AND for Double

DoubleBITOR

static final Reduction<java.lang.Double> DoubleBITOR

Returns the bitwise OR for Double

DoubleBITXOR

static final Reduction<java.lang.Double> DoubleBITXOR

Returns the bitwise XOR for Double

DoubleLOGAND

static final Reduction<java.lang.Double> DoubleLOGAND

Returns the logical AND for Double

DoubleLOGOR

static final Reduction<java.lang.Double> DoubleLOGOR

Returns the logical OR for Double

LongMAX

static final Reduction<java.lang.Long> LongMAX

Returns the maximum for Long

LongMIN

static final Reduction<java.lang.Long> LongMIN

Returns the minimum for Long

LongSUM

static final Reduction<java.lang.Long> LongSUM

Returns the sum for Long

LongMULTI

static final Reduction<java.lang.Long> LongMULTI

Returns the multiplication for Long

LongMINUS

static final Reduction<java.lang.Long> LongMINUS

Returns the minus for Long Minus results are added

LongBITAND

static final Reduction<java.lang.Long> LongBITAND

Returns the bitwise AND for Long

LongBITOR

static final Reduction<java.lang.Long> LongBITOR

Returns the bitwise OR for Long

LongBITXOR

static final Reduction<java.lang.Long> LongBITXOR

Returns the bitwise XOR for Long

LongLOGOR

static final Reduction<java.lang.Long> LongLOGOR

Returns the logical OR for Long

FloatMAX

static final Reduction<java.lang.Float> FloatMAX

Returns the maximum for Float

FloatMIN

static final Reduction<java.lang.Float> FloatMIN

Returns the minimum for Float

FloatSUM

static final Reduction<java.lang.Float> FloatSUM

Returns the sum for Float

FloatMULTI

static final Reduction<java.lang.Float> FloatMULTI

Returns the multiplication for Float

FloatMINUS

static final Reduction<java.lang.Float> FloatMINUS

Returns the minus for Float Minus results are added

ShortMAX

static final Reduction<java.lang.Short> ShortMAX

Returns the maximum for Short

ShortMIN

static final Reduction<java.lang.Short> ShortMIN

Returns the minimum for Short

ShortSUM

static final Reduction<java.lang.Short> ShortSUM

Returns the sum for Short

ShortMULTI

static final Reduction<java.lang.Short> ShortMULTI

Returns the multiplication for Short

ShortMINUS

static final Reduction<java.lang.Short> ShortMINUS

Returns the minus for Short Minus results are added

ShortBITAND

static final Reduction<java.lang.Short> ShortBITAND

Returns the bitwise AND for Short

ShortBITOR

static final Reduction<java.lang.Short> ShortBITOR

Returns the bitwise OR for Short

ShortBITXOR

static final Reduction<java.lang.Short> ShortBITXOR

Returns the bitwise XOR for Short

ByteMAX

static final Reduction<java.lang.Byte> ByteMAX

Returns the maximum for Byte

ByteMIN

static final Reduction<java.lang.Byte> ByteMIN

Returns the minimum for Byte

ByteSUM

static final Reduction<java.lang.Byte> ByteSUM

Returns the sum for Byte

ByteMULTI

static final Reduction<java.lang.Byte> ByteMULTI

Returns the multiplication for Byte

ByteMINUS

static final Reduction<java.lang.Byte> ByteMINUS

Returns the minus for Byte Minus results are added

ByteBITAND

static final Reduction<java.lang.Byte> ByteBITAND

Returns the bitwise AND for Byte

ByteBITOR

static final Reduction<java.lang.Byte> ByteBITOR

Returns the bitwise OR for Byte

ByteBITXOR

static final Reduction<java.lang.Byte> ByteBITXOR

Returns the bitwise XOR for Byte

BooleanBITAND

static final Reduction<java.lang.Boolean> BooleanBITAND

Returns the bitwise AND for Boolean

BooleanBITOR

static final Reduction<java.lang.Boolean> BooleanBITOR

Returns the bitwise OR for Boolean

BooleanBITXOR

static final Reduction<java.lang.Boolean> BooleanBITXOR

Returns the bitwise XOR for Boolean

BooleanLOGAND

static final Reduction<java.lang.Boolean> BooleanLOGAND

Returns the logical AND for Boolean

BooleanLOGOR

static final Reduction<java.lang.Boolean> BooleanLOGOR

Returns the logical OR Boolean

ArrayCOMBINE

static final Reduction<java.lang.Object[]> ArrayCOMBINE

Combines the elements of two arrays into one array

Since:

9/10/2014

Method Detail

reduce

E reduce(E first,
         E second)

Specifies a reduction as defined by 2 elements into 1. The reduction must obey the following 2 constraints:

• Associative: the order of evaluating the reduction makes no difference, and
• Commutative: the order of the thread-local values makes no difference.

Parameters:

first - The first element in the reduction.

second - The second element in the reduction.

Returns:

The result of reducing first with second.