1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #if ! defined INCLUDED_DP_PERSMAP_H
25 #define INCLUDED_DP_PERSMAP_H
26 
27 #include "rtl/ustring.hxx"
28 #include "db.hxx"
29 #include <hash_map>
30 
31 using namespace berkeleydbproxy;
32 
33 namespace dp_misc
34 {
35 
36 typedef ::std::hash_map<
37     ::rtl::OString, ::rtl::OString, ::rtl::OStringHash > t_string2string_map;
38 
39 //==============================================================================
40 class PersistentMap
41 {
42     ::rtl::OUString m_sysPath;
43     mutable Db m_db;
44     void throw_rtexc( int err, char const * msg = 0 ) const;
45 
46 public:
47     ~PersistentMap();
48     PersistentMap( ::rtl::OUString const & url, bool readOnly );
49     /** in mem db */
50     PersistentMap();
51 
52     bool has( ::rtl::OString const & key ) const;
53     bool get( ::rtl::OString * value, ::rtl::OString const & key ) const;
54     t_string2string_map getEntries() const;
55     void put( ::rtl::OString const & key, ::rtl::OString const & value );
56     bool erase( ::rtl::OString const & key, bool flush_immediately = true );
57 };
58 
59 }
60 
61 #endif
62