Class RealVectorFormat


  • public class RealVectorFormat
    extends Object
    Formats a vector in components list format "{v0; v1; ...; vk-1}".

    The prefix and suffix "{" and "}" and the separator "; " can be replaced by any user-defined strings. The number format for components can be configured.

    White space is ignored at parse time, even if it is in the prefix, suffix or separator specifications. So even if the default separator does include a space character that is used at format time, both input string "{1;1;1}" and " { 1 ; 1 ; 1 } " will be parsed without error and the same vector will be returned. In the second case, however, the parse position after parsing will be just after the closing curly brace, i.e. just before the trailing space.

    • Constructor Detail

      • RealVectorFormat

        public RealVectorFormat()
        Create an instance with default settings.

        The instance uses the default prefix, suffix and separator: "{", "}", and "; " and the default number format for components.

      • RealVectorFormat

        public RealVectorFormat​(NumberFormat format)
        Create an instance with a custom number format for components.
        Parameters:
        format - the custom format for components.
      • RealVectorFormat

        public RealVectorFormat​(String prefix,
                                String suffix,
                                String separator)
        Create an instance with custom prefix, suffix and separator.
        Parameters:
        prefix - prefix to use instead of the default "{"
        suffix - suffix to use instead of the default "}"
        separator - separator to use instead of the default "; "
      • RealVectorFormat

        public RealVectorFormat​(String prefix,
                                String suffix,
                                String separator,
                                NumberFormat format)
        Create an instance with custom prefix, suffix, separator and format for components.
        Parameters:
        prefix - prefix to use instead of the default "{"
        suffix - suffix to use instead of the default "}"
        separator - separator to use instead of the default "; "
        format - the custom format for components.
    • Method Detail

      • getAvailableLocales

        public static Locale[] getAvailableLocales()
        Get the set of locales for which real vectors formats are available.

        This is the same set as the NumberFormat set.

        Returns:
        available real vector format locales.
      • getPrefix

        public String getPrefix()
        Get the format prefix.
        Returns:
        format prefix.
      • getSuffix

        public String getSuffix()
        Get the format suffix.
        Returns:
        format suffix.
      • getSeparator

        public String getSeparator()
        Get the format separator between components.
        Returns:
        format separator.
      • getFormat

        public NumberFormat getFormat()
        Get the components format.
        Returns:
        components format.
      • getRealVectorFormat

        public static RealVectorFormat getRealVectorFormat()
        Returns the default real vector format for the current locale.
        Returns:
        the default real vector format.
        Since:
        1.4
      • getRealVectorFormat

        public static RealVectorFormat getRealVectorFormat​(Locale locale)
        Returns the default real vector format for the given locale.
        Parameters:
        locale - the specific locale used by the format.
        Returns:
        the real vector format specific to the given locale.
        Since:
        1.4
      • format

        public StringBuffer format​(RealVector vector,
                                   StringBuffer toAppendTo,
                                   FieldPosition pos)
        Formats a RealVector object to produce a string.
        Parameters:
        vector - the object to format.
        toAppendTo - where the text is to be appended
        pos - On input: an alignment field, if desired. On output: the offsets of the alignment field
        Returns:
        the value passed in as toAppendTo.