FODBSodaIndexPath.java

00001 /*
00002  * OpenMobileIS - a free Java(TM) Framework for mobile applications Java(TM)
00003  * Copyright (C) 2004-2006 Philippe Delrieu
00004  * All rights reserved.
00005  * Contact: pdelrieu@openmobileis.org
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with this library; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
00020  * USA
00021  *
00022  *  Author : Philippe Delrieu
00023  *  
00024  *  Modifications :
00025  *  2004 Creation P.Delrieu
00026  *  2004 Modified by Romain Beaugrand
00027  * 
00028  */
00029 package org.openmobileis.database.fastobjectdb.db.query.soda;
00030 
00031 import org.openmobileis.database.fastobjectdb.FODBStringIndexDescriptor;
00032 import org.openmobileis.database.fastobjectdb.db.exception.FODBException;
00033 import org.openmobileis.database.fastobjectdb.db.index.FODBIndex;
00034 import org.openmobileis.database.fastobjectdb.db.index.FODBIntIndex;
00035 import org.openmobileis.database.fastobjectdb.db.index.FODBLongIndex;
00036 import org.openmobileis.database.fastobjectdb.db.index.FODBStringIndex;
00037 
00044 public final class FODBSodaIndexPath {
00045         private FODBIndex index;
00046         private SodaIndexComparator comparator;
00050   public FODBSodaIndexPath(FODBIndex index) {
00051     super();
00052     this.index = index;
00053     if (index instanceof FODBStringIndex)       {
00054         FODBStringIndexDescriptor descr = (FODBStringIndexDescriptor)index.getIndexDescriptor();
00055         comparator = new SodaStringIndexComparator(descr.isCaseSensitive());
00056                 } else  if (index instanceof FODBIntIndex)      {
00057                         comparator = new SodaIntIndexComparator();      
00058                 } else  if (index instanceof FODBLongIndex)     {
00059                         comparator = new SodaLongIndexComparator();     
00060     }
00061   }
00062         SodaIndexComparator getIndexComparator()        {
00063                 return comparator;
00064         }
00065   
00066         void mergeIndexComporator(SodaIndexComparator index)    {
00067                 comparator.mergeIndexComporator(index);
00068         }
00069   
00070   public String getIndexMember()        {
00071         return this.index.getIndexDescriptor().getMemberName();
00072   }
00073   
00074         public boolean setOperand(Object ope)   {
00075         if (comparator != null) {
00076                 return comparator.setOperand(ope);
00077         }
00078         return false;
00079         }
00080         public long[] execute() throws FODBException {
00081                 return index.query(comparator);
00082         }
00083   
00084         public boolean addComparator(int comp)  {
00085                 if (comparator != null) {
00086                         return comparator.addComparator(comp);
00087                 }
00088                 return false;
00089                 
00090         }
00091   
00092 }

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