com.bea.p13n.expression
Interface Evaluator

public interface Evaluator

An interface that is implemented by the classes that can evaluate an Expression.

Method Summary

java.lang.Object

evaluate(Expression expression) Evaluates a given expression.

Method Detail

evaluate

public java.lang.Object evaluate(Expression expression)
                          throws ExpressionException

Evaluates a given expression.

Parameters:

expression - An Expression to be evaluated.

Returns:

The result of evaluating the supplied expression.

Throws:

ExpressionException - if an error occurs during evaluation of the supplied expression.