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org.postgresql.util

public Class NumberParser

extends Object
Class Inheritance
Optimised byte[] to number parser.

Field Summary

Modifier and TypeField and Description
private static final NumberFormatException
FAST_NUMBER_FAILED

private static final long
MAX_LONG_DIV_TEN

Constructor Summary

AccessConstructor and Description
public
NumberParser()

Method Summary

Modifier and TypeMethod and Description
public static long

Returns:

The parsed number.
getFastLong(byte[]
integer represented as a sequence of ASCII bytes
bytes, long minVal, long maxVal)

Optimised byte[] to number parser.

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

FAST_NUMBER_FAILEDback to summary
private static final NumberFormatException FAST_NUMBER_FAILED
MAX_LONG_DIV_TENback to summary
private static final long MAX_LONG_DIV_TEN

Constructor Detail

NumberParserback to summary
public NumberParser()

Method Detail

getFastLongback to summary
public static long getFastLong(byte[] bytes, long minVal, long maxVal) throws 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:byte[]

integer represented as a sequence of ASCII bytes

Returns:long

The parsed number.

Exceptions
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.