com.fasterxml.jackson.core.io

Class NumberInput



  • public final class NumberInput
    extends Object
    • Field Detail

      • NASTY_SMALL_DOUBLE

        public static final String NASTY_SMALL_DOUBLE
        Textual representation of a double constant that can cause nasty problems with JDK (see http://www.exploringbinary.com/java-hangs-when-converting-2-2250738585072012e-308).
        See Also:
        Constant Field Values
    • Constructor Detail

      • NumberInput

        public NumberInput()
    • Method Detail

      • parseInt

        public static int parseInt(char[] ch,
                                   int off,
                                   int len)
        Fast method for parsing integers that are known to fit into regular 32-bit signed int type. This means that length is between 1 and 9 digits (inclusive)

        Note: public to let unit tests call it

      • parseInt

        public static int parseInt(String s)
        Helper method to (more) efficiently parse integer numbers from String values.
      • parseLong

        public static long parseLong(char[] ch,
                                     int off,
                                     int len)
      • parseLong

        public static long parseLong(String s)
      • inLongRange

        public static boolean inLongRange(char[] ch,
                                          int off,
                                          int len,
                                          boolean negative)
        Helper method for determining if given String representation of an integral number would fit in 64-bit Java long or not. Note that input String must NOT contain leading minus sign (even if 'negative' is set to true).
        Parameters:
        negative - Whether original number had a minus sign (which is NOT passed to this method) or not
      • inLongRange

        public static boolean inLongRange(String s,
                                          boolean negative)
        Similar to inLongRange(char[],int,int,boolean), but with String argument
        Parameters:
        negative - Whether original number had a minus sign (which is NOT passed to this method) or not
      • parseAsInt

        public static int parseAsInt(String s,
                                     int def)
      • parseAsLong

        public static long parseAsLong(String s,
                                       long def)
      • parseAsDouble

        public static double parseAsDouble(String s,
                                           double def)

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