Package com.vaadin.flow.component.spreadsheet

Class FormulaFormatter

java.lang.Object
com.vaadin.flow.component.spreadsheet.FormulaFormatter
All Implemented Interfaces:
Serializable
public class FormulaFormatter extends Object implements Serializable
Converts between a localized formula and a non-localized formula.

This is needed because internally POI only handles formulas with '.' as the decimal separator, and ',' as the argument separator.

See Also:

  • Constructor Details

    • FormulaFormatter

      public FormulaFormatter()

  • Method Details

    • unFormatFormulaValue

      public String unFormatFormulaValue(String formulaValue, Locale locale)
      Convert from a localized format to a non-localized.
      Parameters:
      formulaValue - the value that should be converted
      locale - the locale of the given value
      Returns:
      the non-localized formula

    • reFormatFormulaValue

      public String reFormatFormulaValue(String formulaValue, Locale locale)
      Convert from a non-localized format to a localized.
      Parameters:
      formulaValue - the value that should be converted
      locale - the target locale
      Returns:
      the localized formula

    • isFormulaFormat

      public boolean isFormulaFormat(String value)

    • isValidFormulaFormat

      public boolean isValidFormulaFormat(String value, Locale locale)
      Rudimentary checks if the given string could be a valid formula
      Parameters:
      value - whole formula as a string, must start with '=' or '+'
      locale - the current locale
      Returns:
      true if the formula could be valid

    • tokensToString

      protected String tokensToString(List<com.vaadin.flow.component.spreadsheet.FormulaFormatter.FormulaToken> tokens)

    • unLocalizeTokens

      protected List<com.vaadin.flow.component.spreadsheet.FormulaFormatter.FormulaToken> unLocalizeTokens(List<com.vaadin.flow.component.spreadsheet.FormulaFormatter.FormulaToken> tokens, Locale locale)

    • tokenizeFormula

      protected List<com.vaadin.flow.component.spreadsheet.FormulaFormatter.FormulaToken> tokenizeFormula(String formulaValue, Locale from)

    • isNumberChar

      protected boolean isNumberChar(Character current, Locale locale)

    • getDecimalFormat

      protected DecimalFormat getDecimalFormat(Locale locale)

    • getCurrentDecimalSeparator

      protected char getCurrentDecimalSeparator(Locale locale)