Package com.ibm.icu.text

Class SameValueSubstitution

java.lang.Object

com.ibm.icu.text.NFSubstitution

com.ibm.icu.text.SameValueSubstitution

class SameValueSubstitution
extends NFSubstitution

A substitution that passes the value passed to it through unchanged. Represented by == in rule descriptions.

Field Summary

Fields inherited from class com.ibm.icu.text.NFSubstitution

numberFormat, pos, ruleSet

Constructor Summary

Constructors

Constructor	Description
SameValueSubstitution(int pos, NFRuleSet ruleSet, String description)	Constructs a SameValueSubstution.

Method Summary

Modifier and Type	Method	Description
double	calcUpperBound(double oldUpperBound)	SameValueSubstitution doesn't change the upper bound.
double	composeRuleValue(double newRuleValue, double oldRuleValue)	Returns newRuleValue and ignores oldRuleValue.
(package private) char	tokenChar()	The token character for a SameValueSubstitution is =.
double	transformNumber(double number)	Returns "number" unchanged.
long	transformNumber(long number)	Returns "number" unchanged.

Methods inherited from class com.ibm.icu.text.NFSubstitution

doParse, doSubstitution, doSubstitution, equals, getPos, hashCode, isModulusSubstitution, makeSubstitution, setDecimalFormatSymbols, setDivisor, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

SameValueSubstitution

SameValueSubstitution(int pos,
 NFRuleSet ruleSet,
 String description)

Constructs a SameValueSubstution. This function just uses the superclass constructor, but it performs a check that this substitution doesn't call the rule set that owns it, since that would lead to infinite recursion.

Method Details

transformNumber

public long transformNumber(long number)

Returns "number" unchanged.

Specified by:

transformNumber in class NFSubstitution

Parameters:

number - The number being formatted

Returns:

"number"

transformNumber

public double transformNumber(double number)

Returns "number" unchanged.

Specified by:

transformNumber in class NFSubstitution

Parameters:

number - The number being formatted

Returns:

"number"

composeRuleValue

public double composeRuleValue(double newRuleValue,
 double oldRuleValue)

Returns newRuleValue and ignores oldRuleValue. (The value we got matching the substitution supersedes the value of the rule that owns the substitution.)

Specified by:

composeRuleValue in class NFSubstitution

Parameters:

newRuleValue - The value resulting from matching the substitution

oldRuleValue - The value of the rule containing the substitution.

Returns:

newRuleValue

calcUpperBound

public double calcUpperBound(double oldUpperBound)

SameValueSubstitution doesn't change the upper bound.

Specified by:

calcUpperBound in class NFSubstitution

Parameters:

oldUpperBound - The current upper bound.

Returns:

oldUpperBound

tokenChar

char tokenChar()

The token character for a SameValueSubstitution is =.

Specified by:

tokenChar in class NFSubstitution

Returns:

'='