KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > db4o > test > CaseInsensitive


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 package com.db4o.test;
22
23 import java.io.*;
24
25 import com.db4o.*;
26 import com.db4o.query.*;
27
28 /**
29  * demonstrates a case-insensitive query using an Evaluation
30  */
31 public class CaseInsensitive implements Serializable {
32     
33     public String JavaDoc name;
34     
35     public CaseInsensitive() {
36     }
37     
38     public CaseInsensitive(String JavaDoc name) {
39         this.name = name;
40     }
41     
42     public void store(){
43         Test.deleteAllInstances(this);
44         Test.store(new CaseInsensitive("HelloWorld"));
45     }
46     
47     public void test(){
48         Test.ensure(queryingCaseInsensitiveResults("heLLOworld") == 1);
49     }
50     
51     private int queryingCaseInsensitiveResults(final String JavaDoc name){
52         ObjectContainer objectContainer = Test.objectContainer();
53         Query q = objectContainer.query();
54         q.constrain(CaseInsensitive.class);
55         q.constrain(new Evaluation() {
56             public void evaluate(Candidate candidate) {
57                 CaseInsensitive ci = (CaseInsensitive)candidate.getObject();
58                 candidate.include(ci.name.toLowerCase().equals(name.toLowerCase()));
59             }
60         });
61         return q.execute().size();
62     }
63 }
64
Popular Tags