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1   /**
2    * Copyright (c) 2011, University of Konstanz, Distributed Systems Group
3    * All rights reserved.
4    * 
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions are met:
7    * * Redistributions of source code must retain the above copyright
8    * notice, this list of conditions and the following disclaimer.
9    * * Redistributions in binary form must reproduce the above copyright
10   * notice, this list of conditions and the following disclaimer in the
11   * documentation and/or other materials provided with the distribution.
12   * * Neither the name of the University of Konstanz nor the
13   * names of its contributors may be used to endorse or promote products
14   * derived from this software without specific prior written permission.
15   * 
16   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19   * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
20   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26   */
27  
28  package org.treetank.service.xml.diff;
29  
30  import org.treetank.api.INodeReadTrx;
31  import org.treetank.axis.AbsAxis;
32  
33  /**
34   * @author Johannes Lichtenberger, University of Konstanz
35   * 
36   */
37  public class DiffAxis extends AbsAxis {
38  
39      /**
40       * Constructor.
41       * 
42       * @param pNewRtx
43       *            {@link INodeReadTrx} on new revision
44       * @param pOldRtx
45       *            {@link INodeReadTrx} on old revision
46       */
47      public DiffAxis(final INodeReadTrx pNewRtx, final INodeReadTrx pOldRtx) {
48          super(pNewRtx);
49      }
50  
51      /** {@inheritDoc} */
52      @Override
53      public boolean hasNext() {
54          return false;
55          // if (getTransaction().getNode().getKind() != ENode.ROOT_KIND) {
56          // if (mHashKind == HashKind.None || mDiffKind == EDiffKind.NORMAL) {
57          // mDiff = diff(getTransaction(), mOldRtx, mDepth, EFireDiff.TRUE);
58          // } else {
59          // mDiff = optimizedDiff(getTransaction(), mOldRtx, mDepth,
60          // EFireDiff.TRUE);
61          // }
62          // }
63  
64      }
65  
66  }