Package com.fasterxml.jackson.dataformat.csv.impl

Class NumberInput

  • public final class NumberInput
extends java.lang.Object

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.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).

    • Constructor Summary

      Constructors 
      Constructor Description
      NumberInput()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean inLongRange​(char[] digitChars, int offset, 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.
      static double parseDouble​(java.lang.String numStr)  
      static int parseInt​(char[] digitChars, int offset, int len)
      Fast method for parsing integers that are known to fit into regular 32-bit signed int type.
      static long parseLong​(char[] digitChars, int offset, int len)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • NASTY_SMALL_DOUBLE

        public static final java.lang.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 final int parseInt​(char[] digitChars,
                                 int offset,
                                 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

      • parseLong

        public static final long parseLong​(char[] digitChars,
                                   int offset,
                                   int len)

      • inLongRange

        public static final boolean inLongRange​(char[] digitChars,
                                        int offset,
                                        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

      • parseDouble

        public static final double parseDouble​(java.lang.String numStr)
                                throws java.lang.NumberFormatException
        Throws:
        java.lang.NumberFormatException