Class NumberInput

java.lang.Object
org.codehaus.jackson.io.NumberInput
public final class NumberInput extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    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).

  • Constructor Summary

    Constructors
    Constructor
    Description
    NumberInput()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    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.
    static final boolean
    inLongRange(String numberStr, boolean negative)
    Similar to inLongRange(char[],int,int,boolean), but with String argument
    static double
    parseAsDouble(String input, double defaultValue)
     
    static int
    parseAsInt(String input, int defaultValue)
     
    static long
    parseAsLong(String input, long defaultValue)
     
    static final double
    parseDouble(String numStr)
     
    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.
    static final int
    parseInt(String str)
    Helper method to (more) efficiently parse integer numbers from String values.
    static final long
    parseLong(char[] digitChars, int offset, int len)
     
    static final long
    parseLong(String str)
     

    Methods inherited from class Object

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

  • Field Details

    • 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:

  • Constructor Details

    • NumberInput

      public NumberInput()

  • Method Details

    • 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

    • parseInt

      public static final int parseInt(String str)
      Helper method to (more) efficiently parse integer numbers from String values.
      Since:
      1.7

    • parseLong

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

    • parseLong

      public static final long parseLong(String str)

    • 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

    • inLongRange

      public static final boolean inLongRange(String numberStr, 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
      Since:
      1.5.0

    • parseAsInt

      public static int parseAsInt(String input, int defaultValue)
      Since:
      1.6

    • parseAsLong

      public static long parseAsLong(String input, long defaultValue)
      Since:
      1.6

    • parseAsDouble

      public static double parseAsDouble(String input, double defaultValue)
      Since:
      1.6

    • parseDouble

      public static final double parseDouble(String numStr) throws NumberFormatException
      Throws:
      NumberFormatException
      Since:
      1.8