Source Code Cross Referenced for IntBTreeIndexLoader.java in  » Database-DBMS » axion » org » axiondb » engine » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » axion » org.axiondb.engine 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01:        /*
02:         * $Id: IntBTreeIndexLoader.java,v 1.9 2005/04/24 21:29:11 ahimanikya Exp $
03:         * =======================================================================
04:         * Copyright (c) 2002-2005 Axion Development Team.  All rights reserved.
05:         *  
06:         * Redistribution and use in source and binary forms, with or without 
07:         * modification, are permitted provided that the following conditions 
08:         * are met:
09:         * 
10:         * 1. Redistributions of source code must retain the above 
11:         *    copyright notice, this list of conditions and the following 
12:         *    disclaimer. 
13:         *   
14:         * 2. Redistributions in binary form must reproduce the above copyright 
15:         *    notice, this list of conditions and the following disclaimer in 
16:         *    the documentation and/or other materials provided with the 
17:         *    distribution. 
18:         *   
19:         * 3. The names "Tigris", "Axion", nor the names of its contributors may 
20:         *    not be used to endorse or promote products derived from this 
21:         *    software without specific prior written permission. 
22:         *  
23:         * 4. Products derived from this software may not be called "Axion", nor 
24:         *    may "Tigris" or "Axion" appear in their names without specific prior
25:         *    written permission.
26:         *   
27:         * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
28:         * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
29:         * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
30:         * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
31:         * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
32:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
33:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
34:         * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
35:         * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
36:         * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
37:         * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38:         * =======================================================================
39:         */
40:
41:        package org.axiondb.engine;
42:
43:        import java.io.File;
44:        import java.io.IOException;
45:
46:        import org.axiondb.AxionException;
47:        import org.axiondb.Column;
48:        import org.axiondb.Index;
49:        import org.axiondb.IndexLoader;
50:        import org.axiondb.engine.indexes.BaseBTreeIndexLoader;
51:        import org.axiondb.engine.indexes.IntBTreeIndex;
52:
53:        /**
54:         * An {@link IndexLoader}for {@link IntBTreeIndex}.
55:         * 
56:         * @version $Revision: 1.9 $ $Date: 2005/04/24 21:29:11 $
57:         * @author Dave Pekarek Krohn
58:         * @author Ahimanikya Satapathy
59:         */
60:        public class IntBTreeIndexLoader extends BaseBTreeIndexLoader implements 
61:                IndexLoader {
62:            public IntBTreeIndexLoader() {
63:            }
64:
65:            protected Index makeIndex(String name, Column col, boolean unique,
66:                    File dataDirectory) throws AxionException {
67:                return new IntBTreeIndex(name, col, unique, dataDirectory);
68:            }
69:
70:            public void save(Index ndx, File dataDirectory)
71:                    throws AxionException {
72:                IntBTreeIndex index = (IntBTreeIndex) ndx;
73:                try {
74:                    index.getBTree().save(dataDirectory);
75:                } catch (IOException e) {
76:                    throw new AxionException(e);
77:                } catch (ClassNotFoundException e) {
78:                    throw new AxionException(e);
79:                }
80:            }
81:
82:            public void saveIndexAfterTruncate(Index ndx, File dataDirectory)
83:                    throws AxionException {
84:                IntBTreeIndex index = (IntBTreeIndex) ndx;
85:                try {
86:                    index.getBTree().saveAfterTruncate();
87:                } catch (IOException e) {
88:                    throw new AxionException(e);
89:                } catch (ClassNotFoundException e) {
90:                    throw new AxionException(e);
91:                }
92:            }
93:        }
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