01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.sql;
30:
31: /**
32: * Represtents a prepared statement cache key.
33: */
34: class PreparedStatementKey {
35: private String _sql;
36: private int _resultType;
37:
38: PreparedStatementKey() {
39: }
40:
41: PreparedStatementKey(String sql) {
42: init(sql);
43: }
44:
45: PreparedStatementKey(String sql, int resultType) {
46: _sql = sql;
47: _resultType = resultType;
48: }
49:
50: void init(String sql, int resultType) {
51: _sql = sql;
52: _resultType = resultType;
53: }
54:
55: void init(String sql) {
56: _sql = sql;
57: _resultType = -1;
58: }
59:
60: PreparedStatementKey copy() {
61: return new PreparedStatementKey(_sql, _resultType);
62: }
63:
64: public int hashCode() {
65: int hash = _sql.hashCode();
66:
67: hash = 65521 * hash + _resultType;
68:
69: return hash;
70: }
71:
72: public boolean equals(Object o) {
73: if (o == null || !getClass().equals(o.getClass()))
74: return false;
75:
76: PreparedStatementKey key = (PreparedStatementKey) o;
77:
78: if (!_sql.equals(key._sql))
79: return false;
80: else if (_resultType != key._resultType)
81: return false;
82: else
83: return true;
84: }
85: }
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