Package org.apache.cassandra.db.marshal

Class NumberType<T extends java.lang.Number>

java.lang.Object

org.apache.cassandra.db.marshal.AbstractType<T>

org.apache.cassandra.db.marshal.NumberType<T>

All Implemented Interfaces:

java.util.Comparator<java.nio.ByteBuffer>, AssignmentTestable

Direct Known Subclasses:

ByteType, CounterColumnType, DecimalType, DoubleType, FloatType, Int32Type, IntegerType, LongType, ShortType

public abstract class NumberType<T extends java.lang.Number>
extends AbstractType<T>

Base type for the numeric types.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.cassandra.db.marshal.AbstractType

AbstractType.ComparisonType

Nested classes/interfaces inherited from interface org.apache.cassandra.cql3.AssignmentTestable

AssignmentTestable.TestResult

Field Summary

Fields inherited from class org.apache.cassandra.db.marshal.AbstractType

comparatorSet, comparisonType, isByteOrderComparable, reverseComparator

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NumberType(AbstractType.ComparisonType comparisonType)

Method Summary

Modifier and Type	Method	Description
abstract java.nio.ByteBuffer	add(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right)	Adds the left argument to the right one.
abstract java.nio.ByteBuffer	divide(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right)	Divides the left argument by the right one.
boolean	isFloatingPoint()	Checks if this type support floating point numbers.
abstract java.nio.ByteBuffer	mod(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right)	Return the remainder.
abstract java.nio.ByteBuffer	multiply(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right)	Multiplies the left argument with the right one.
abstract java.nio.ByteBuffer	negate(java.nio.ByteBuffer input)	Negates the argument.
abstract java.nio.ByteBuffer	substract(NumberType<?> leftType, java.nio.ByteBuffer left, NumberType<?> rightType, java.nio.ByteBuffer right)	Substracts the left argument from the right one.
protected java.math.BigDecimal	toBigDecimal(java.nio.ByteBuffer value)	Converts the specified value into a BigDecimal.
protected java.math.BigInteger	toBigInteger(java.nio.ByteBuffer value)	Converts the specified value into a BigInteger if allowed.
protected byte	toByte(java.nio.ByteBuffer value)	Converts the specified value into a byte if allowed.
protected double	toDouble(java.nio.ByteBuffer value)	Converts the specified value into a double if allowed.
protected float	toFloat(java.nio.ByteBuffer value)	Converts the specified value into a float if allowed.
protected int	toInt(java.nio.ByteBuffer value)	Converts the specified value into an int if allowed.
protected long	toLong(java.nio.ByteBuffer value)	Converts the specified value into a long if allowed.
protected short	toShort(java.nio.ByteBuffer value)	Converts the specified value into a short if allowed.

Methods inherited from class org.apache.cassandra.db.marshal.AbstractType

asCQL3Type, asCQLTypeStringList, checkComparable, compare, compare, compareCollectionMembers, compareCustom, compareForCQL, compose, compose, decompose, decomposeUntyped, expandUserTypes, freeze, freezeNestedMulticellTypes, fromJSONObject, fromString, getComponents, getSerializer, getString, getString, getString, isCollection, isCompatibleWith, isCounter, isEmptyValueMeaningless, isFreezable, isFrozenCollection, isMultiCell, isReversed, isSerializationCompatibleWith, isTuple, isUDT, isValueCompatibleWith, isValueCompatibleWithInternal, parseDefaultParameters, read, readArray, readBuffer, readBuffer, referencesDuration, referencesUserType, referencesUserType, skipValue, subTypes, testAssignment, testAssignment, toCQLString, toJSONString, toJSONString, toString, toString, udfType, unwrap, validate, validate, validateCellValue, validateCollectionMember, valueLengthIfFixed, withUpdatedUserType, writeValue, writeValue, writtenLength, writtenLength

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

NumberType

protected NumberType(AbstractType.ComparisonType comparisonType)

Method Detail

isFloatingPoint

public boolean isFloatingPoint()

Checks if this type support floating point numbers.

Returns:

true if this type support floating point numbers, false otherwise.

toBigInteger

protected java.math.BigInteger toBigInteger(java.nio.ByteBuffer value)

Converts the specified value into a BigInteger if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toBigDecimal

protected java.math.BigDecimal toBigDecimal(java.nio.ByteBuffer value)

Converts the specified value into a BigDecimal.

Parameters:

value - the value to convert

Returns:

the converted value

toByte

protected byte toByte(java.nio.ByteBuffer value)

Converts the specified value into a byte if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toShort

protected short toShort(java.nio.ByteBuffer value)

Converts the specified value into a short if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toInt

protected int toInt(java.nio.ByteBuffer value)

Converts the specified value into an int if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toLong

protected long toLong(java.nio.ByteBuffer value)

Converts the specified value into a long if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toFloat

protected float toFloat(java.nio.ByteBuffer value)

Converts the specified value into a float if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

toDouble

protected double toDouble(java.nio.ByteBuffer value)

Converts the specified value into a double if allowed.

Parameters:

value - the value to convert

Returns:

the converted value

Throws:

java.lang.UnsupportedOperationException - if the value cannot be converted without losing precision

add

public abstract java.nio.ByteBuffer add(NumberType<?> leftType,
                                        java.nio.ByteBuffer left,
                                        NumberType<?> rightType,
                                        java.nio.ByteBuffer right)

Adds the left argument to the right one.

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the addition result

substract

public abstract java.nio.ByteBuffer substract(NumberType<?> leftType,
                                              java.nio.ByteBuffer left,
                                              NumberType<?> rightType,
                                              java.nio.ByteBuffer right)

Substracts the left argument from the right one.

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the substraction result

multiply

public abstract java.nio.ByteBuffer multiply(NumberType<?> leftType,
                                             java.nio.ByteBuffer left,
                                             NumberType<?> rightType,
                                             java.nio.ByteBuffer right)

Multiplies the left argument with the right one.

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the multiplication result

divide

public abstract java.nio.ByteBuffer divide(NumberType<?> leftType,
                                           java.nio.ByteBuffer left,
                                           NumberType<?> rightType,
                                           java.nio.ByteBuffer right)

Divides the left argument by the right one.

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the division result

mod

public abstract java.nio.ByteBuffer mod(NumberType<?> leftType,
                                        java.nio.ByteBuffer left,
                                        NumberType<?> rightType,
                                        java.nio.ByteBuffer right)

Return the remainder.

Parameters:

leftType - the type associated to the left argument

left - the left argument

rightType - the type associated to the right argument

right - the right argument

Returns:

the remainder

negate

public abstract java.nio.ByteBuffer negate(java.nio.ByteBuffer input)

Negates the argument.

Parameters:

input - the argument to negate

Returns:

the negated argument