org.vesalainen.grammar.math

Class SimpleMathStateMachine

java.lang.Object

org.vesalainen.util.AbstractStateMachine<BooleanMathExpression,org.vesalainen.util.AbstractStateMachine.State>

org.vesalainen.grammar.math.AbstractMathStateMachine

org.vesalainen.grammar.math.SimpleMathStateMachine

public class SimpleMathStateMachine
extends AbstractMathStateMachine

SimpleMathStateMachine implements variables by using DoubleMap.

Author:

tkv

See Also:

DoubleMap

Nested Class Summary

Nested classes/interfaces inherited from class org.vesalainen.util.AbstractStateMachine

org.vesalainen.util.AbstractStateMachine.State

Field Summary

Fields inherited from class org.vesalainen.grammar.math.AbstractMathStateMachine

ELAPSED_TIME, START_TIME, STATE_ELAPSED_TIME, STATE_START_TIME

Constructor Summary

Constructors

Constructor and Description
SimpleMathStateMachine(String start)
SimpleMathStateMachine(String start, boolean useDegrees)
SimpleMathStateMachine(String start, java.util.function.Supplier<java.time.Clock> clockSupplier, boolean useDegrees)

Method Summary

Modifier and Type	Method and Description
protected double	getVariable(String identifier) Returns the current value of given variable.
protected void	register(Set<String> variables) This method is called before evaluation for information of variables that may need to be registered.
void	setVariable(String identifier, double value) Assign value to named variable.
protected void	unregister(Set<String> variables) This method is called after evaluation for information of variables that can be unregistered.

Methods inherited from class org.vesalainen.grammar.math.AbstractMathStateMachine

addTransition, evaluate, getCurrentVariables

Methods inherited from class org.vesalainen.util.AbstractStateMachine

addState, addState, addState, addState, addTransition, getCurrentConditions, getCurrentState, getElapsedTime, getStartTime, getStateElapsedTime, getStateStartTime

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleMathStateMachine

public SimpleMathStateMachine(String start)

SimpleMathStateMachine

public SimpleMathStateMachine(String start,
                              boolean useDegrees)

SimpleMathStateMachine

public SimpleMathStateMachine(String start,
                              java.util.function.Supplier<java.time.Clock> clockSupplier,
                              boolean useDegrees)

Method Detail

setVariable

public void setVariable(String identifier,
                        double value)

Assign value to named variable.

Parameters:

identifier -

value -

getVariable

protected double getVariable(String identifier)

Description copied from class: AbstractMathStateMachine

Returns the current value of given variable.

Specified by:

getVariable in class AbstractMathStateMachine

Returns:

register

protected void register(Set<String> variables)

Description copied from class: AbstractMathStateMachine

This method is called before evaluation for information of variables that may need to be registered. Set content is valid only during this method call.

Specified by:

register in class AbstractMathStateMachine

unregister

protected void unregister(Set<String> variables)

Description copied from class: AbstractMathStateMachine

This method is called after evaluation for information of variables that can be unregistered. Set content is valid only during this method call.

Specified by:

unregister in class AbstractMathStateMachine