# Package org.apache.tiles.core.evaluator

package org.apache.tiles.core.evaluator
Interfaces to manage attribute value evaluation.

- Related Packages
  Package
  Description
  org.apache.tiles.core.evaluator.impl
  Classes to manage attribute value evaluation.
- Class
  Description
  AbstractAttributeEvaluator
  Abstract class to link a correct evaluation of an attribute, by evaluating `Attribute.getValue()` and then `Attribute.getExpressionObject()`.
  AttributeEvaluator
  It represents an object that resolves a string to return an object.
  AttributeEvaluatorFactory
  Creates an attribute evaluator using the language or an attribute.
  AttributeEvaluatorFactoryAware
  It represents an object that can use an `AttributeEvaluatorFactory`.
  BasicAttributeEvaluatorFactory
  Basic implementation of `AttributeEvaluatorFactory`.
  EvaluationException
  Exception raised when an expression language evaluation fails.