org.codehaus.plexus.component.configurator.expression

Interface TypeAwareExpressionEvaluator

All Superinterfaces:

ExpressionEvaluator

public interface TypeAwareExpressionEvaluator
extends ExpressionEvaluator

Evaluate an expression.

Version:

$Id: TypeAwareExpressionEvaluator.java 8347 2009-08-20 17:37:19Z bentmann $

Author:

Brett Porter

Field Summary

Fields inherited from interface org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator

ROLE

Method Summary

Methods

Modifier and Type	Method and Description
Object	evaluate(String expression, Class<?> type) Evaluate an expression.

Methods inherited from interface org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator

alignToBaseDirectory, evaluate

Method Detail

evaluate

Object evaluate(String expression,
              Class<?> type)
                throws ExpressionEvaluationException

Evaluate an expression. The optional type provided to this method is a hint (not a requirement) for the evaluator to resolve the expression to a compatible value. The evaluator is not expected to perform any conversion but rather filter out incompatible values from its result.

Parameters:

expression - the expression

type - The expected type of expression result, may be null.

Returns:

the value of the expression

Throws:

ExpressionEvaluationException