Evaluator


1   package jfun.yan.xml.nut;
2   
3   /**
4    * This interface represents an object that evaluates a Nut
5    * object.
6    * <p>
7    * @author Ben Yu
8    * Nov 9, 2005 11:32:10 PM
9    */
10  public interface Evaluator extends java.io.Serializable   {
11    /**
12     * Evaluate the object.
13     * @param nut the object.
14     * @return the evaluation result.
15     * @throws Exception if any error happens.
16     */
17    Object   eval(Object   nut)
18    throws Exception  ;
19    /**
20     * Get the expected evaluation result type.
21     */
22    Class   getType();
23  }
24

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