01: /*
02: This source file is part of Smyle, a database library.
03: For up-to-date information, see http://www.drjava.de/smyle
04: Copyright (C) 2001 Stefan Reich (doc@drjava.de)
05:
06: This library is free software; you can redistribute it and/or
07: modify it under the terms of the GNU Lesser General Public
08: License as published by the Free Software Foundation; either
09: version 2.1 of the License, or (at your option) any later version.
10:
11: This library is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: Lesser General Public License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public
17: License along with this library; if not, write to the Free Software
18: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19:
20: For full license text, see doc/license/lgpl.txt in this distribution
21: */
22:
23: package drjava.smyle.core;
24:
25: import java.util.*;
26: import drjava.smyle.*;
27: import drjava.smyle.meta.*;
28:
29: class SubList<T extends Struct<T>> extends AbstractList<T> {
30: final TableImpl<T> table;
31: final List<ChunkRef> chunkRefs;
32:
33: SubList(TableImpl<T> table, List<ChunkRef> chunkRefs) {
34: this .table = table;
35: this .chunkRefs = chunkRefs;
36: }
37:
38: public int size() {
39: return chunkRefs.size();
40: }
41:
42: public T get(int index) {
43: return table.loadElement(chunkRefs.get(index));
44: }
45:
46: /*public T set(int index, T t) { synchronized(table.snapshot) {
47: table.assertMutable();
48: ChunkRef chunk = chunkRefs.get(index);
49: int index2 = table.elements.indexOf(chunk);
50: T old = table.loadElement(index2);
51: table.removeFromIndex(old, chunk);
52: table.saveElement(t, index2);
53: chunkRefs.set(index, table.elements.get(index2));
54: return old;
55: }}*/
56:
57: public List<T> subList(int i, int j) {
58: return new SubList<T>(table, chunkRefs.subList(i, j));
59: }
60: }
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