Package hec.hecmath.computation

Class Computation

java.lang.Object

hec.hecmath.computation.Computation

All Implemented Interfaces:

Constants, Evaluable, Updatable, UpdatableListener

public class Computation
extends Object
implements Constants, Evaluable

Nested Class Summary

Nested classes/interfaces inherited from interface hec.hecmath.computation.Constants

Constants.LogicTestOperator, Constants.MathOperator, Constants.Notation, Constants.Precedence, Constants.QualityOperator, Constants.QualityTestOperator, Constants.TextOperator, Constants.TextTestOperator, Constants.ValueTestOperator

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	allowDenormal
protected static boolean	allowDenormalByDefault
protected List<hec.hecmath.computation.Computation.ConditionalExpression>	computation
protected boolean	exceptionOnUndefined
protected static boolean	exceptionOnUndefinedByDefault
protected static Pattern	expand_otherwise
protected static Pattern	expand_when
protected String	inputText
protected Variable	result
protected static Pattern	split_otherwise
protected static Pattern	split_when
protected boolean	stale
protected boolean	tolerateUndefined
protected static boolean	tolerateUndefinedByDefault
protected Set<UpdatableListener>	updateListeners
protected Set<Updatable>	updateSources
protected Object	updateSourcesLock
protected VariableSet	variables

Fields inherited from interface hec.hecmath.computation.Constants

BINARY, CONSTANT, TERNARY, UNARY, VARIADIC

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Computation()
	Computation(String expr)

Method Summary

Modifier and Type	Method	Description
protected void	compute()
void	dataUpdated(Updatable u)
double	evaluate()
String	evaluateToString()
boolean	getAllowDenormal()
static boolean	getAllowDenormalByDefault()
boolean	getExceptionOnUndefined()
static boolean	getExceptionOnUndefinedByDefault()
int	getQuality()
boolean	getTolerateUndefined()
static boolean	getTolerateUndefinedByDefault()
static void	main(String[] args)
protected hec.hecmath.computation.Computation.ConditionalExpression	makeConditionalExpression(String conditionText, String toDo)
void	notifyListeners()
void	registerAsListener(Updatable u)
void	registerListener(UpdatableListener listener)
void	setAllowDenormal(boolean setting)
static void	setAllowDenormalByDefault(boolean setting)
void	setExceptionOnUndefined(boolean setting)
static void	setExceptionOnUndefinedByDefault(boolean setting)
protected void	setExpression(String expr)
void	setTolerateUndefined(boolean setting)
static void	setTolerateUndefinedByDefault(boolean setting)
String	toNotation(Constants.Notation notation)
String	toString()
void	unregisterAsListener()
void	unregisterAsListener(Updatable u)
void	unregisterListener(UpdatableListener listener)

Methods inherited from class java.lang.Object

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

Field Details

tolerateUndefinedByDefault

protected static boolean tolerateUndefinedByDefault

exceptionOnUndefinedByDefault

protected static boolean exceptionOnUndefinedByDefault

allowDenormalByDefault

protected static boolean allowDenormalByDefault

expand_when

protected static Pattern expand_when

expand_otherwise

protected static Pattern expand_otherwise

split_when

protected static Pattern split_when

split_otherwise

protected static Pattern split_otherwise

tolerateUndefined

protected boolean tolerateUndefined

exceptionOnUndefined

protected boolean exceptionOnUndefined

allowDenormal

protected boolean allowDenormal

stale

protected boolean stale

inputText

protected String inputText

result

protected Variable result

variables

protected VariableSet variables

updateSources

protected Set<Updatable> updateSources

updateSourcesLock

protected Object updateSourcesLock

updateListeners

protected Set<UpdatableListener> updateListeners

computation

protected List<hec.hecmath.computation.Computation.ConditionalExpression> computation

Constructor Details

Computation

protected Computation()

Computation

public Computation(String expr)
            throws ComputationException

Throws:

ComputationException

Method Details

getTolerateUndefinedByDefault

public static boolean getTolerateUndefinedByDefault()

setTolerateUndefinedByDefault

public static void setTolerateUndefinedByDefault(boolean setting)

getExceptionOnUndefinedByDefault

public static boolean getExceptionOnUndefinedByDefault()

setExceptionOnUndefinedByDefault

public static void setExceptionOnUndefinedByDefault(boolean setting)

getAllowDenormalByDefault

public static boolean getAllowDenormalByDefault()

setAllowDenormalByDefault

public static void setAllowDenormalByDefault(boolean setting)

getTolerateUndefined

public boolean getTolerateUndefined()

Specified by:

getTolerateUndefined in interface Evaluable

getExceptionOnUndefined

public boolean getExceptionOnUndefined()

Specified by:

getExceptionOnUndefined in interface Evaluable

getAllowDenormal

public boolean getAllowDenormal()

Specified by:

getAllowDenormal in interface Evaluable

setTolerateUndefined

public void setTolerateUndefined(boolean setting)

Specified by:

setTolerateUndefined in interface Evaluable

setExceptionOnUndefined

public void setExceptionOnUndefined(boolean setting)

Specified by:

setExceptionOnUndefined in interface Evaluable

setAllowDenormal

public void setAllowDenormal(boolean setting)

Specified by:

setAllowDenormal in interface Evaluable

toString

public String toString()

Specified by:

toString in interface Evaluable

Overrides:

toString in class Object

evaluate

public double evaluate()
                throws ComputationException

Specified by:

evaluate in interface Evaluable

Throws:

ComputationException

evaluateToString

public String evaluateToString()
                        throws ComputationException

Specified by:

evaluateToString in interface Evaluable

Throws:

ComputationException

getQuality

public int getQuality()
               throws ComputationException

Throws:

ComputationException

toNotation

public String toNotation(Constants.Notation notation)
                  throws ComputationException

Specified by:

toNotation in interface Evaluable

Throws:

ComputationException

registerAsListener

public void registerAsListener(Updatable u)

Specified by:

registerAsListener in interface UpdatableListener

unregisterAsListener

public void unregisterAsListener(Updatable u)

Specified by:

unregisterAsListener in interface UpdatableListener

unregisterAsListener

public void unregisterAsListener()

Specified by:

unregisterAsListener in interface UpdatableListener

dataUpdated

public void dataUpdated(Updatable u)

Specified by:

dataUpdated in interface UpdatableListener

compute

protected void compute()
                throws ComputationException

Throws:

ComputationException

makeConditionalExpression

protected hec.hecmath.computation.Computation.ConditionalExpression makeConditionalExpression(String conditionText,
 String toDo)
                                                                                       throws ComputationException

Throws:

ComputationException

setExpression

protected void setExpression(String expr)
                      throws ComputationException

Throws:

ComputationException

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

registerListener

public void registerListener(UpdatableListener listener)

Specified by:

registerListener in interface Updatable

unregisterListener

public void unregisterListener(UpdatableListener listener)

Specified by:

unregisterListener in interface Updatable

notifyListeners

public void notifyListeners()

Specified by:

notifyListeners in interface Updatable