namespace Akenti class ExpressionEvaluator

Public Methods

	Expression () DefaultConstructor
	Expression (const string& expression)
	~Expression ()
string	toString () const
bool	evaluate (ExpressionEvaluator& evaluator) const Use this method when it is possible for the evaluator to evaluate all non-boolean conditions
int	reduce (ExpressionEvaluator& evaluator, Expression& expr) const Use this method when it may not be possible for the evaluator to evaluate all non-boolean conditions
void	visit (ExpressionVisitor& visitor) const Use this method to visit all the non-boolean conditions
virtual	~ExpressionEvaluator ()
virtual bool	evaluate (Type type, const string& leftOperand, const string& rightOperand)
virtual int	reduce (Type type, const string& leftOperand, const string& rightOperand)

Expression()

DefaultConstructor

Expression(const string& expression)

~Expression()

string toString() const

bool evaluate(ExpressionEvaluator& evaluator) const

Use this method when it is possible for the evaluator to evaluate all non-boolean conditions

int reduce(ExpressionEvaluator& evaluator, Expression& expr) const

Use this method when it may not be possible for the evaluator to evaluate all non-boolean conditions. The resulting expression is placed in the out parameter expr

Returns:

s 1 or 0 if it was possible to evaluate the whole tree. -1 otherwise and the resulting expression is placed in expr.

void visit(ExpressionVisitor& visitor) const

Use this method to visit all the non-boolean conditions

virtual ~ExpressionEvaluator()

virtual bool evaluate(Type type, const string& leftOperand, const string& rightOperand)

virtual int reduce(Type type, const string& leftOperand, const string& rightOperand)

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