Session


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;
22  
23  final class Session
24  {
25      final String              i_fileName;
26      YapStream               i_stream;
27      private int             i_openCount;
28      
29      Session(String   a_fileName){
30          i_fileName = a_fileName;
31      }
32      
33      /**
34       * returns true, if session is to be closed completely
35       */
36      boolean closeInstance(){
37          i_openCount --;
38          return i_openCount < 0;
39      }
40      
41      public boolean equals(Object   a_object){
42          return i_fileName.equals(((Session)a_object).i_fileName);
43      }
44      
45      String   fileName(){
46          return i_fileName;
47      }
48      
49      YapStream subSequentOpen(){
50          if( i_stream.isClosed()){
51              return null;
52          }
53          i_openCount ++;
54          return i_stream;
55      }
56      
57  
58      
59  }
60
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