KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > db4o > diagnostic > NativeQueryNotOptimized


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.diagnostic;
22
23 import com.db4o.query.*;
24
25 /**
26  * Diagnostic, if Native Query can not be run optimized.
27  */
28 public class NativeQueryNotOptimized extends DiagnosticBase{
29     
30     private final Predicate _predicate;
31     
32     public NativeQueryNotOptimized(Predicate predicate) {
33         _predicate = predicate;
34     }
35
36     public Object JavaDoc reason() {
37         return _predicate;
38     }
39
40     public String JavaDoc problem() {
41         return "Native Query Predicate could not be run optimized";
42     }
43
44     public String JavaDoc solution() {
45         return "This Native Query was run by instantiating all objects of the candidate class. "
46         + "Consider simplifying the expression in the Native Query method. If you feel that "
47         + "the Native Query processor should understand your code better, you are invited to "
48         + "post yout query code to db4o forums at http://developer.db4o.com/forums";
49     }
50
51 }
52
Popular Tags