01: /*
02: * $Id: CreateDatabaseLinkCommand.java,v 1.1 2004/09/02 01:52:09 ahimanikya Exp $
03: * =======================================================================
04: * Copyright (c) 2002-2003 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 java.util.Properties;
44:
45: import org.axiondb.AxionException;
46: import org.axiondb.Database;
47: import org.axiondb.DatabaseLink;
48:
49: /**
50: * A <code>CREATE DATABASE LINK</code> command.
51: *
52: * @version $Revision: 1.1 $ $Date: 2004/09/02 01:52:09 $
53: * @author Ahimanikya Satapathy
54: */
55: public class CreateDatabaseLinkCommand extends CreateCommand {
56: public CreateDatabaseLinkCommand() {
57: }
58:
59: public CreateDatabaseLinkCommand(String serverName) {
60: setObjectName(serverName);
61: }
62:
63: public boolean execute(Database db) throws AxionException {
64: assertNotReadOnly(db);
65: if (!isIfNotExists() || !db.hasDatabaseLink(getObjectName())) {
66: db.createDatabaseLink(new DatabaseLink(getObjectName(),
67: _connectionSpec));
68: }
69: return false;
70: }
71:
72: public void setProperties(Properties prop) {
73: _connectionSpec = prop;
74: }
75:
76: Properties _connectionSpec = new Properties();
77: }
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