com.fasterxml.jackson.dataformat.csv.impl
Class NumberInput

java.lang.Object
  com.fasterxml.jackson.dataformat.csv.impl.NumberInput

public final class NumberInput
extends Object

Field Summary

static 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

NumberInput()

Method Summary

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(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 int	parseInt(String str) Helper method to (more) efficiently parse integer numbers from String values.
static long	parseLong(char[] digitChars, int offset, int len)
static long	parseLong(String str)

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 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

parseInt

public static final int parseInt(String str)

Helper method to (more) efficiently parse integer numbers from String values.

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

parseDouble

public static final double parseDouble(String numStr)
                                throws NumberFormatException

Throws:

NumberFormatException