Package com.ibm.icu.number

Class ScientificNotation.ScientificHandler

java.lang.Object

com.ibm.icu.number.ScientificNotation.ScientificHandler

All Implemented Interfaces:

MicroPropsGenerator, Modifier, MultiplierProducer

Enclosing class:

ScientificNotation

private static class ScientificNotation.ScientificHandler
extends Object
implements MicroPropsGenerator, MultiplierProducer, Modifier

Nested Class Summary

Nested classes/interfaces inherited from interface com.ibm.icu.impl.number.Modifier

Modifier.Parameters, Modifier.Signum

Field Summary

Fields

Modifier and Type	Field	Description
(package private) int	exponent
(package private) final ScientificNotation	notation
(package private) final MicroPropsGenerator	parent
(package private) final ScientificNotation.ScientificModifier[]	precomputedMods
(package private) final DecimalFormatSymbols	symbols

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ScientificHandler(ScientificNotation notation, DecimalFormatSymbols symbols, boolean safe, MicroPropsGenerator parent)

Method Summary

Modifier and Type	Method	Description
int	apply(FormattedStringBuilder output, int leftIndex, int rightIndex)	Apply this Modifier to the string builder.
boolean	containsField(Format.Field field)	Whether the modifier contains at least one occurrence of the given field.
private int	doApply(int exponent, FormattedStringBuilder output, int rightIndex)
int	getCodePointCount()	Returns the number of code points in the modifier, prefix plus suffix.
int	getMultiplier(int magnitude)	Maps a magnitude to a multiplier in powers of ten.
Modifier.Parameters	getParameters()	Gets a set of "parameters" for this Modifier.
int	getPrefixLength()	Gets the length of the prefix.
boolean	isStrong()	Whether this modifier is strong.
MicroProps	processQuantity(DecimalQuantity quantity)	Considers the given DecimalQuantity, optionally mutates it, and returns a MicroProps.
boolean	strictEquals(Modifier other)	Returns whether this Modifier equals another Modifier.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.ibm.icu.impl.number.Modifier

semanticallyEquivalent

Field Details

notation

final ScientificNotation notation

symbols

final DecimalFormatSymbols symbols

precomputedMods

final ScientificNotation.ScientificModifier[] precomputedMods

parent

final MicroPropsGenerator parent

exponent

int exponent

Constructor Details

ScientificHandler

private ScientificHandler(ScientificNotation notation,
 DecimalFormatSymbols symbols,
 boolean safe,
 MicroPropsGenerator parent)

Method Details

processQuantity

public MicroProps processQuantity(DecimalQuantity quantity)

Description copied from interface: MicroPropsGenerator

Considers the given DecimalQuantity, optionally mutates it, and returns a MicroProps.

Specified by:

processQuantity in interface MicroPropsGenerator

Parameters:

quantity - The quantity for consideration and optional mutation.

Returns:

A MicroProps instance resolved for the quantity.

getMultiplier

public int getMultiplier(int magnitude)

Description copied from interface: MultiplierProducer

Maps a magnitude to a multiplier in powers of ten. For example, in compact notation in English, a magnitude of 5 (e.g., 100,000) should return a multiplier of -3, since the number is displayed in thousands.

Specified by:

getMultiplier in interface MultiplierProducer

Parameters:

magnitude - The power of ten of the input number.

Returns:

The shift in powers of ten.

getPrefixLength

public int getPrefixLength()

Description copied from interface: Modifier

Gets the length of the prefix. This information can be used in combination with Modifier.apply(com.ibm.icu.impl.FormattedStringBuilder, int, int) to extract the prefix and suffix strings.

Specified by:

getPrefixLength in interface Modifier

Returns:

The number of characters (UTF-16 code units) in the prefix.

getCodePointCount

public int getCodePointCount()

Description copied from interface: Modifier

Returns the number of code points in the modifier, prefix plus suffix.

Specified by:

getCodePointCount in interface Modifier

isStrong

public boolean isStrong()

Description copied from interface: Modifier

Whether this modifier is strong. If a modifier is strong, it should always be applied immediately and not allowed to bubble up. With regard to padding, strong modifiers are considered to be on the inside of the prefix and suffix.

Specified by:

isStrong in interface Modifier

Returns:

Whether the modifier is strong.

containsField

public boolean containsField(Format.Field field)

Description copied from interface: Modifier

Whether the modifier contains at least one occurrence of the given field.

Specified by:

containsField in interface Modifier

getParameters

public Modifier.Parameters getParameters()

Description copied from interface: Modifier

Gets a set of "parameters" for this Modifier.

Specified by:

getParameters in interface Modifier

strictEquals

public boolean strictEquals(Modifier other)

Description copied from interface: Modifier

Returns whether this Modifier equals another Modifier.

Specified by:

strictEquals in interface Modifier

apply

public int apply(FormattedStringBuilder output,
 int leftIndex,
 int rightIndex)

Description copied from interface: Modifier

Apply this Modifier to the string builder.

Specified by:

apply in interface Modifier

Parameters:

output - The string builder to which to apply this modifier.

leftIndex - The left index of the string within the builder. Equal to 0 when only one number is being formatted.

rightIndex - The right index of the string within the string builder. Equal to length when only one number is being formatted.

Returns:

The number of characters (UTF-16 code units) that were added to the string builder.

doApply

private int doApply(int exponent,
 FormattedStringBuilder output,
 int rightIndex)