org.assistments.util.math.business

Class MathEvaluator

java.lang.Object

org.assistments.util.math.business.MathEvaluator

public class MathEvaluator
extends java.lang.Object

The MathEvaluator is the central class of the Math API. It coordinates operation between the MathDatumParser and the MathDatumEvaluationEngine.

Constructor Summary

Constructors

Constructor and Description
MathEvaluator()

Method Summary

Modifier and Type	Method and Description
static int	compareAsAlgebraic(java.lang.String rawDatumA, java.lang.String rawDatumB) Compare the two given Strings (raw data) as AlgebraicMathData
static int	compareAsExpression(java.lang.String rawDatumA, java.lang.String rawDatumB) Compare the two given Strings (raw datums) as ExpressionMathData
static int	compareAsFraction(java.lang.String rawDatumA, java.lang.String rawDatumB) Compare the two given Strings (raw datums) as FractionMathData
static int	compareAsFractionExact(java.lang.String rawDatumA, java.lang.String rawDatumB) Compare the two given Strings (raw datums) as parsed Fraction strings
static int	compareAsNumeric(java.lang.String rawDatumA, java.lang.String rawDatumB) Compare the two given Strings (raw datums) as NumericMathData
static double	evaluateAsExpression(java.lang.String datum) Compare the given String (raw datum) as a ExpressionMathDatum
static double	evaluateAsFraction(java.lang.String datum) Compare the given String (raw datum) as a FractionMathDatum
static double	evaluateAsNumeric(java.lang.String datum) Compare the given String (raw datum) as a NumericMathDatum
static MathDatumParser	getMathDatumParser() Provide the MathDatumParser to clients

Methods inherited from class java.lang.Object

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

Constructor Detail

MathEvaluator

public MathEvaluator()

Method Detail

getMathDatumParser

public static MathDatumParser getMathDatumParser()

Provide the MathDatumParser to clients

Returns:

the MathDatumParser in use

compareAsNumeric

public static int compareAsNumeric(java.lang.String rawDatumA,
                                   java.lang.String rawDatumB)

Compare the two given Strings (raw datums) as NumericMathData

Parameters:

rawDatumA -

rawDatumB -

Returns:

-1 if rawDatumA < rawDatumB 0 if rawDatumA = rawDatumB 1 if rawDatumA > rawDatumB

compareAsFraction

public static int compareAsFraction(java.lang.String rawDatumA,
                                    java.lang.String rawDatumB)

Compare the two given Strings (raw datums) as FractionMathData

Parameters:

rawDatumA -

rawDatumB -

Returns:

-1 if rawDatumA < rawDatumB 0 if rawDatumA = rawDatumB 1 if rawDatumA > rawDatumB

compareAsFractionExact

public static int compareAsFractionExact(java.lang.String rawDatumA,
                                         java.lang.String rawDatumB)

Compare the two given Strings (raw datums) as parsed Fraction strings

Parameters:

rawDatumA -

rawDatumB -

Returns:

-1 if rawDatumA < rawDatumB 0 if rawDatumA = rawDatumB 1 if rawDatumA > rawDatumB

compareAsExpression

public static int compareAsExpression(java.lang.String rawDatumA,
                                      java.lang.String rawDatumB)

Compare the two given Strings (raw datums) as ExpressionMathData

Parameters:

rawDatumA -

rawDatumB -

Returns:

-1 if rawDatumA < rawDatumB 0 if rawDatumA = rawDatumB 1 if rawDatumA > rawDatumB

compareAsAlgebraic

public static int compareAsAlgebraic(java.lang.String rawDatumA,
                                     java.lang.String rawDatumB)

Compare the two given Strings (raw data) as AlgebraicMathData

Parameters:

rawDatumA -

rawDatumB -

Returns:

-1 if rawDatumA < rawDatumB 0 if rawDatumA = rawDatumB 1 if rawDatumA > rawDatumB

evaluateAsNumeric

public static double evaluateAsNumeric(java.lang.String datum)

Compare the given String (raw datum) as a NumericMathDatum

Parameters:

datum - the String to evaluate

Returns:

the evaluated double.

evaluateAsFraction

public static double evaluateAsFraction(java.lang.String datum)

Compare the given String (raw datum) as a FractionMathDatum

Parameters:

datum - the String to evaluate

Returns:

the evaluated double.

evaluateAsExpression

public static double evaluateAsExpression(java.lang.String datum)

Compare the given String (raw datum) as a ExpressionMathDatum

Parameters:

datum - the String to evaluate

Returns:

the evaluated double.