Package redempt.crunch.functional

Class EvaluationEnvironment

java.lang.Object

redempt.crunch.functional.EvaluationEnvironment

public class EvaluationEnvironment
extends Object

Represents an environment containing functions that can be called in expressions

Constructor Summary

Constructors

Constructor	Description
EvaluationEnvironment()	Creates a new EvaluationEnvironment

Method Summary

Modifier and Type	Method	Description
void	addFunction(String name, int argCount, ToDoubleFunction<double[]> func)	Adds a Function that can be called from expressions with this environment
void	addFunction(Function function)	Adds a Function that can be called from expressions with this environment
void	addFunctions(Function... functions)	Adds any number of Functions that can be called from expressions with this environment
void	addLazyVariable(String name, DoubleSupplier supply)	Adds a lazily-evaluated variable that will not need to be passed with the variable values
void	clearFunctions()	Removes all functions
CharTree<Token>	getNamedTokens()
void	setVariableNames(String... names)

Methods inherited from class java.lang.Object

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

Constructor Details

EvaluationEnvironment

public EvaluationEnvironment()

Creates a new EvaluationEnvironment

Method Details

addFunction

public void addFunction(Function function)

Adds a Function that can be called from expressions with this environment

Parameters:

function - The function

addFunctions

public void addFunctions(Function... functions)

Adds any number of Functions that can be called from expressions with this environment

Parameters:

functions - The functions to add

addLazyVariable

public void addLazyVariable(String name,
 DoubleSupplier supply)

Adds a lazily-evaluated variable that will not need to be passed with the variable values

Parameters:

name - The name of the lazy variable

supply - A function to supply the value of the variable when needed

setVariableNames

public void setVariableNames(String... names)

addFunction

public void addFunction(String name,
 int argCount,
 ToDoubleFunction<double[]> func)

Adds a Function that can be called from expressions with this environment

Parameters:

name - The function name

argCount - The argument count for the function

func - The lambda to accept the arguments as a double array and return a value

clearFunctions

public void clearFunctions()

Removes all functions

getNamedTokens

public CharTree<Token> getNamedTokens()