org.postgresql.util

Class NumberParser

java.lang.Object

org.postgresql.util.NumberParser

public class NumberParser
extends java.lang.Object

Optimised byte[] to number parser.

Field Summary

Fields

Modifier and Type	Field and Description
private static java.lang.NumberFormatException	FAST_NUMBER_FAILED
private static long	MAX_LONG_DIV_TEN

Constructor Summary

Constructors

Constructor and Description
NumberParser()

Method Summary

Modifier and Type	Method and Description
static long	getFastLong(byte[] bytes, long minVal, long maxVal) Optimised byte[] to number parser.

Methods inherited from class java.lang.Object

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

Field Detail

FAST_NUMBER_FAILED

private static final java.lang.NumberFormatException FAST_NUMBER_FAILED

MAX_LONG_DIV_TEN

private static final long MAX_LONG_DIV_TEN

See Also:

Constant Field Values

Constructor Detail

NumberParser

public NumberParser()

Method Detail

getFastLong

public static long getFastLong(byte[] bytes,
                               long minVal,
                               long maxVal)
                        throws java.lang.NumberFormatException

Optimised byte[] to number parser. This code does not handle null values, so the caller must do checkResultSet and handle null values prior to calling this function. Fraction part is discarded.

Parameters:

bytes - integer represented as a sequence of ASCII bytes

Returns:

The parsed number.

Throws:

java.lang.NumberFormatException - If the number is invalid or the out of range for fast parsing. The value must then be parsed by another (less optimised) method.