blasd.apex.core.primitive

Class ApexParserHelper

java.lang.Object

blasd.apex.core.primitive.ApexParserHelper

public class ApexParserHelper
extends Object

Try to provide faster primitive faster than FLoat.parseFLoat and Double.parseDouble, even if these method are intrisic methods.

Author:

Benoit Lacelle

Constructor Summary

Constructors

Constructor and Description
ApexParserHelper()

Method Summary

Modifier and Type	Method and Description
static void	initialize() Initializes the cache for sin and cos and the rest.
static double	parseDouble(CharSequence s) Parses a double from a CharSequence.
static float	parseFloat(CharSequence floatAsCharSequence)

Methods inherited from class java.lang.Object

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

Constructor Detail

ApexParserHelper

public ApexParserHelper()

Method Detail

initialize

public static void initialize()

Initializes the cache for sin and cos and the rest.

parseDouble

public static double parseDouble(CharSequence s)

Parses a double from a CharSequence. Performance compared to intrinsic java method varies a lot: between 20% faster to 100% faster depending on the input values. The trick is to use Long.parseLong, which is extremely fast.

Parameters:

s - The string.

Returns:

The double value.

parseFloat

public static float parseFloat(CharSequence floatAsCharSequence)