Class Conversions

java.lang.Object

ch.andre601.expressionparser.Conversions

public class Conversions
extends Object

Class containing static methods to convert ToBooleanExpression, ToDoubleExpression and ToStringExpression into their respective counterparts.

Constructor Summary

Constructors

Constructor	Description
Conversions()

Method Summary

Modifier and Type	Method	Description
static ToBooleanExpression	toBoolean(ToDoubleExpression expression)	Converts the provided ToDoubleExpression into a ToBooleanExpression with its boolean value being true if the ToDoubleExpression's double value is anything but zero.
static ToBooleanExpression	toBoolean(ToStringExpression expression)	Converts the provided ToStringExpression into a ToBooleanExpression with its boolean value being the output of Boolean.parseBoolean(expression.evaluate()).
static ToDoubleExpression	toDouble(ToBooleanExpression expression)	Converts the provided ToBooleanExpression into a ToDoubleExpression with its double value being one should the ToBooleanExpression's boolean value be true, else zero.
static ToDoubleExpression	toDouble(ToStringExpression expression)	Converts the provided ToStringExpression into a ToDoubleExpression with its double value being parsed from the ToStringExpression's String value using a static NumberFormatter.
static ToStringExpression	toString(ToBooleanExpression expression)	Converts the provided ToBooleanExpression into a ToStringExpression with its String value being the output of Boolean.toString(expression.evaluate()).
static ToStringExpression	toString(ToDoubleExpression expression)	Converts the provided ToDoubleExpression into a ToStringExpression with its String value being the output of either Integer.toString((int)expression.evaluate()) or Double.toString(expression.evaluate()) depending on if the ToDoubleExpression's double value can be cast to an Integer.

Methods inherited from class java.lang.Object

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

Constructor Details

Conversions

public Conversions()

Method Details

toBoolean

public static ToBooleanExpression toBoolean(ToDoubleExpression expression)

Converts the provided ToDoubleExpression into a ToBooleanExpression with its boolean value being true if the ToDoubleExpression's double value is anything but zero.

Parameters:

expression - The ToDoubleExpression to convert.

Returns:

ToBooleanExpression who's boolean value is true if the ToDoubleExpression's double value is not zero.

toBoolean

public static ToBooleanExpression toBoolean(ToStringExpression expression)

Converts the provided ToStringExpression into a ToBooleanExpression with its boolean value being the output of Boolean.parseBoolean(expression.evaluate()).

Parameters:

expression - The ToStringExpression to convert.

Returns:

ToBooleanExpression who's boolean value is the output of Boolean.parseBoolean(String).

toDouble

public static ToDoubleExpression toDouble(ToBooleanExpression expression)

Converts the provided ToBooleanExpression into a ToDoubleExpression with its double value being one should the ToBooleanExpression's boolean value be true, else zero.

Parameters:

expression - The ToBooleanExpression to convert.

Returns:

ToDoubleExpression with its double value being one if the ToBooleanExpression's boolean value be true, else zero.

toDouble

public static ToDoubleExpression toDouble(ToStringExpression expression)

Converts the provided ToStringExpression into a ToDoubleExpression with its double value being parsed from the ToStringExpression's String value using a static NumberFormatter.
Should the parsing fail will the String value's length be used instead.

Parameters:

expression - The ToStringExpression to convert.

Returns:

ToDoubleExpression who's double value either matches the ToStringExpression's String value text, if showing a number, else the String's text length.

toString

public static ToStringExpression toString(ToBooleanExpression expression)

Converts the provided ToBooleanExpression into a ToStringExpression with its String value being the output of Boolean.toString(expression.evaluate()).

Parameters:

expression - The ToBooleanExpression to convert.

Returns:

ToStringExpression whose String value is the output of Boolean.toString(boolean).

toString

public static ToStringExpression toString(ToDoubleExpression expression)

Converts the provided ToDoubleExpression into a ToStringExpression with its String value being the output of either Integer.toString((int)expression.evaluate()) or Double.toString(expression.evaluate()) depending on if the ToDoubleExpression's double value can be cast to an Integer.

Parameters:

expression - The ToDoubleExpression to convert.

Returns:

ToStringExpression whose String value is the output of either Integer.toString(int) or Double.toString(double).