01: /*
02: * sqlc 1
03: * SQL Compiler
04: * Copyright (C) 2003 Hammurapi Group
05: *
06: * This program 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 of the License, or (at your option) any later version.
10: *
11: * This program 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: * URL: http://www.hammurapi.biz/products/sqlc/index.html
21: * e-Mail: support@hammurapi.biz
22: */
23: package biz.hammurapi.sql.metadata;
24:
25: /**
26: * @author Pavel Vlasov
27: * @version $Revision: 1.1 $
28: */
29: public interface IndexInfo {
30:
31: String getJavaName();
32:
33: /**
34: * @return true if this index shall be used for ordered selects
35: */
36: boolean isOrdered();
37:
38: /**
39: * @return true if this index shall be used to select
40: * rows with index columns equal to parameters
41: */
42: boolean isEQ();
43:
44: /**
45: * @return true if this index shall be used to select rows with
46: * index columns not equal to parameters
47: */
48: boolean isNE();
49:
50: /**
51: * @return true if this index shall be used to select rows with
52: * position in the index before the position specified by parameters.
53: */
54: boolean isLT();
55:
56: /**
57: * @return true if this index shall be used to select rows
58: * with index columns "less" or equal to parameters
59: */
60: boolean isLE();
61:
62: /**
63: * @return true if this index shall be used to select rows
64: * with index columns "greater" than parameters
65: */
66: boolean isGT();
67:
68: /**
69: * @return true if this index shall be used to
70: * select rows with index columns greater or equal to parameters
71: */
72: boolean isGE();
73: }
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