Package com.singularsys.extensions.xjep

Class FieldTreeUtils

java.lang.Object

com.singularsys.extensions.xjep.TreeUtils

com.singularsys.extensions.xjep.FieldTreeUtils

All Implemented Interfaces:

JepComponent, Serializable

public class FieldTreeUtils
extends TreeUtils

The TreeUtility functions adapted to work with a Field.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
FieldTreeUtils(FieldI field)	Constructor

Method Summary

Modifier and Type	Method	Description
int	getIntValue(Object val)	Convert value to integer.
boolean	isInfinityVal(Object val)	Uses a field to test for a value equals +/- infinity Some fields may not have infinite values
boolean	isIntegerVal(Object val)	Uses the IntegerConvertor interface of a field to test for integer values.
boolean	isMinusOneVal(Object value)	Uses a field to test for -1
boolean	isNaNVal(Object val)	Uses a field to test for a NaN value Some fields may not have NaN values
boolean	isNegativeVal(Object value)	Uses a field to test for negative values
boolean	isOneVal(Object value)	Uses a field to test for a value equals one
boolean	isPositiveVal(Object value)	Uses a field to test for a positive value
boolean	isZeroVal(Object value)	Uses a field to test for a value equals zero

Methods inherited from class com.singularsys.extensions.xjep.TreeUtils

complexValue, getChildrenAsArray, getCI, getCMinusI, getCMinusOne, getCOne, getCZero, getFalse, getLightWeightInstance, getMinusOne, getNAN, getNegativeInfinity, getOne, getPositiveInfinity, getTrue, getTwo, getZero, hasInfinity, hasNaN, init, intValue, isBinaryOperator, isComplex, isComplexVal, isConstant, isConstantVariable, isFunction, isInfinity, isInteger, isMinusOne, isNaN, isNegative, isOne, isOperator, isPositive, isReal, isRealVal, isUnaryOperator, isVariable, isZero, setChildrenIfNeeded

Methods inherited from class java.lang.Object

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

Constructor Details

FieldTreeUtils

public FieldTreeUtils(FieldI field)

Constructor

Parameters:

field - the field to use

Method Details

isMinusOneVal

public boolean isMinusOneVal(Object value)

Uses a field to test for -1

Overrides:

isMinusOneVal in class TreeUtils

Parameters:

value - value to test

Returns:

true in value is -1 false otherwise

isNegativeVal

public boolean isNegativeVal(Object value)

Uses a field to test for negative values

Overrides:

isNegativeVal in class TreeUtils

Parameters:

value - value to test

Returns:

true in value is negative false otherwise

isOneVal

public boolean isOneVal(Object value)

Uses a field to test for a value equals one

Overrides:

isOneVal in class TreeUtils

Parameters:

value - value to test

Returns:

true in value is one false otherwise

isPositiveVal

public boolean isPositiveVal(Object value)

Uses a field to test for a positive value

Overrides:

isPositiveVal in class TreeUtils

Parameters:

value - value to test

Returns:

true in value is positive false otherwise

isZeroVal

public boolean isZeroVal(Object value)

Uses a field to test for a value equals zero

Overrides:

isZeroVal in class TreeUtils

Parameters:

value - value to test

Returns:

true in value is zero false otherwise

isInfinityVal

public boolean isInfinityVal(Object val)

Uses a field to test for a value equals +/- infinity Some fields may not have infinite values

Overrides:

isInfinityVal in class TreeUtils

Parameters:

val - value to test

Returns:

true in value is infinite false otherwise

isNaNVal

public boolean isNaNVal(Object val)

Uses a field to test for a NaN value Some fields may not have NaN values

Overrides:

isNaNVal in class TreeUtils

Parameters:

val - value to test

Returns:

true in value is zero false otherwise

isIntegerVal

public boolean isIntegerVal(Object val)

Uses the IntegerConvertor interface of a field to test for integer values.

Overrides:

isIntegerVal in class TreeUtils

Parameters:

val - value to test

Returns:

true in value is positive false otherwise

getIntValue

public int getIntValue(Object val)
                throws EvaluationException

Convert value to integer. Assumes isIntegerVal(Object) return true

Overrides:

getIntValue in class TreeUtils

Parameters:

val - value to convert

Returns:

val converted to an integer

Throws:

EvaluationException - if the field does not implement IntegerConvertor or the conversion failed.