org.matheclipse.parser.client.eval.api

Interface IEvaluator<DATA,DATA_VARIABLE>

Type Parameters:

DATA - the generic type

DATA_VARIABLE - the generic type

All Known Subinterfaces:

IASTVisitor<DATA,DATA_VARIABLE,USER_DATA_TYPE>

All Known Implementing Classes:

AbstractASTVisitor, ComplexEvalVisitor

public interface IEvaluator<DATA,DATA_VARIABLE>

Interface for java.lang.Object based evaluation engines (typicaly implemented as IASTVisitors). For example the ComplexEvalVisitor class uses the Complex class data type.

See Also:

IASTVisitor, ComplexEvalVisitor

Method Summary

Modifier and Type	Method and Description
void	clearVariables() Clear all defined variables for this evaluator.
void	defineVariable(String variableName, BooleanVariable value) Define a boolean value for a given variable name.
void	defineVariable(String variableName, DATA_VARIABLE value) Define a value for a given variable name.
DATA	evaluateNode(ASTNode node) Evaluate an already parsed in abstract syntax tree node into a DATA value.
DATA_VARIABLE	getVariable(String variableName) Returns the data variable value to which the specified variableName is mapped, or null if this map contains no mapping for the variableName.
ASTNode	optimizeFunction(FunctionNode functionNode) Optimize an already parsed in functionNode into an ASTNode.

Method Detail

clearVariables

void clearVariables()

Clear all defined variables for this evaluator.

defineVariable

void defineVariable(String variableName,
                    BooleanVariable value)

Define a boolean value for a given variable name.

Parameters:

variableName - the variable name

value - the value

defineVariable

void defineVariable(String variableName,
                    DATA_VARIABLE value)

Define a value for a given variable name.

Parameters:

variableName - the variable name

value - the value

evaluateNode

DATA evaluateNode(ASTNode node)

Evaluate an already parsed in abstract syntax tree node into a DATA value.

Parameters:

node - abstract syntax tree node

Returns:

the evaluated DATA

getVariable

DATA_VARIABLE getVariable(String variableName)

Returns the data variable value to which the specified variableName is mapped, or null if this map contains no mapping for the variableName.

Parameters:

variableName - the variable name

Returns:

the variable

optimizeFunction

ASTNode optimizeFunction(FunctionNode functionNode)

Optimize an already parsed in functionNode into an ASTNode.

Parameters:

functionNode - the function node

Returns:

the AST node