BinaryEvaluatedTC


1   /**
2    * MEDOR: Middleware Enabling Distributed Object Requests
3    *
4    * Copyright (C) 2001-2003 France Telecom R&D
5    * Contact: alexandre.lefebvre@rd.francetelecom.com
6    *
7    * This library is free software; you can redistribute it and/or
8    * modify it under the terms of the GNU Lesser General Public
9    * License as published by the Free Software Foundation; either
10   * version 2.1 of the License, or (at your option) any later version.
11   *
12   * This library is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this library; if not, write to the Free Software
19   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20   *
21   * Initial developers: M. Alia, A. Lefebvre
22   */
23  
24  /**
25   * Package definition.
26   */
27  package org.objectweb.medor.eval.api;
28  
29  import org.objectweb.medor.api.MedorException;
30  import org.objectweb.medor.tuple.api.TupleCollection;
31  
32  /**
33   * This interface represent a result of a Medor Query. It is dynamic because the evaluator
34   * search result and iterate them by filtering the left and the right tuples.
35   */
36  public interface BinaryEvaluatedTC extends TupleCollection {
37  
38      /**
39       * Get the current row of the left TupleCollection
40       * @return an int
41       * @throws MedorException if error in left TupleCollection
42       */
43      int getLeftTCCursor() throws MedorException;
44  
45      /**
46       * Get the current row of the right TupleCollection
47       * @return an int
48       * @throws MedorException if error in right TupleCollection
49       */
50      int getRightTCCursor() throws MedorException;
51  }
52  
53
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