com.zfqjava.formula
Interface Operator

All Known Implementing Classes:

AbstractOperator

public interface Operator

Method Summary

Object	evaluate(Object arg) Returns the value for the specified argument.
Object	evaluate(Object arg1, Object arg2) Returns the value for the specified arguments.
int	getPrecedence() Returns the precedence of this operator.
String	getSymbol() Returns the symbol.
boolean	isRightAssociative() Determins whether the operator is right associative.
boolean	isUnary() Determins whether the operator is unary or binary.

Method Detail

getSymbol

String getSymbol()

Returns the symbol.

isUnary

boolean isUnary()

Determins whether the operator is unary or binary.

isRightAssociative

boolean isRightAssociative()

Determins whether the operator is right associative.

getPrecedence

int getPrecedence()

Returns the precedence of this operator.

evaluate

Object evaluate(Object arg)

Returns the value for the specified argument.

Parameters:

arg - the operator argument

Returns:

the object

evaluate

Object evaluate(Object arg1,
                Object arg2)

Returns the value for the specified arguments.

Parameters:

arg1 - the operator argument

arg2 - the operator argument

Returns:

the object