01: /*
02: * $Id: DropCommand.java,v 1.3 2005/12/20 18:32:28 ahimanikya Exp $
03: * =======================================================================
04: * Copyright (c) 2002-2006 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.commands;
42:
43: import org.axiondb.AxionException;
44: import org.axiondb.Database;
45: import org.axiondb.jdbc.AxionResultSet;
46:
47: /**
48: * Abstract base class for things like <code>DROP TABLE</code> and
49: * <code>DROP SEQUENCE</code>.
50: *
51: * @version $Revision: 1.3 $ $Date: 2005/12/20 18:32:28 $
52: * @author Rodney Waldhoff
53: * @author Ahimanikya Satapathy
54: */
55: public abstract class DropCommand extends BaseAxionCommand {
56:
57: public abstract boolean execute(Database db) throws AxionException;
58:
59: /** Unsupported **/
60: public AxionResultSet executeQuery(Database database)
61: throws AxionException {
62: throw new UnsupportedOperationException("Use execute.");
63: }
64:
65: public int executeUpdate(Database database) throws AxionException {
66: execute(database);
67: return 0;
68: }
69:
70: public String getObjectName() {
71: return _objectName;
72: }
73:
74: public boolean isCascade() {
75: return _cascade;
76: }
77:
78: public boolean isIfExists() {
79: return _ifExists;
80: }
81:
82: public void setCascade(boolean cascade) {
83: _cascade = cascade;
84: }
85:
86: public void setIfExists(boolean flag) {
87: _ifExists = flag;
88: }
89:
90: public void setObjectName(String name) {
91: _objectName = name;
92: }
93:
94: private boolean _cascade = false;
95: private boolean _ifExists = false;
96: private String _objectName;
97: }
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