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.
  • 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:
      '='