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Java > Open Source Codes > jfun > parsec > Accumulator


1 /*****************************************************************************
2  * Copyright (C) Zephyr Business Solutions Corp. All rights reserved. *
3  * ------------------------------------------------------------------------- *
4  * The software in this package is published under the terms of the BSD *
5  * style license a copy of which has been included with this distribution in *
6  * the LICENSE.txt file. *
7  *****************************************************************************/
8 package jfun.parsec;
9
10 /**
11  * Used to accumulate objects.
12  * Parsers.manyAccum() use Accumulator to collect return values.
13  * Can be parameterized as Accumulator<T,R>
14  * @author Ben Yu
15  *
16  * 2004-11-12
17  */
18 public interface Accumulator<From,To> extends java.io.Serializable JavaDoc{
19   /**
20    * accumulate one object into the result.
21    * @param obj the object to be accumulated.
22    */
23   void accumulate(From obj);
24   /**
25    * gets the accumulated result.
26    * @return the result.
27    */
28   To getResult();
29 }
30
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