1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
// **********************************************************************
//
// Copyright (c) 2003-2011 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#ifndef FREEZE_OBJECT_STORE_H
#define FREEZE_OBJECT_STORE_H
#include <Ice/Ice.h>
#include <Ice/Identity.h>
#include <Freeze/DB.h>
#include <Freeze/EvictorStorage.h>
#include <Freeze/Index.h>
#include <Freeze/TransactionI.h>
#include <IceUtil/Cache.h>
#include <vector>
#include <list>
#include <db_cxx.h>
namespace Freeze
{
template<class T> class EvictorI;
class EvictorIBase;
class ObjectStoreBase
{
public:
ObjectStoreBase(const std::string&, const std::string&, bool, EvictorIBase*,
const std::vector<IndexPtr>&, bool);
virtual ~ObjectStoreBase();
const Ice::ObjectPtr& sampleServant() const;
bool dbHasObject(const Ice::Identity&, const TransactionIPtr&) const;
void save(Key& key, Value& value, Ice::Byte status, DbTxn* tx);
static void marshal(const Ice::Identity&, Key&, const Ice::CommunicatorPtr&);
static void unmarshal(Ice::Identity&, const Key&, const Ice::CommunicatorPtr&);
static void marshal(const ObjectRecord&, Value&, const Ice::CommunicatorPtr&);
static void unmarshal(ObjectRecord&, const Value&, const Ice::CommunicatorPtr&);
bool load(const Ice::Identity&, const TransactionIPtr&, ObjectRecord&);
void update(const Ice::Identity&, const ObjectRecord&, const TransactionIPtr&);
bool insert(const Ice::Identity&, const ObjectRecord&, const TransactionIPtr&);
bool remove(const Ice::Identity&, const TransactionIPtr&);
EvictorIBase* evictor() const;
//
// For IndexI and Iterator
//
Db* db() const;
const std::string& dbName() const;
const Ice::CommunicatorPtr& communicator() const;
const std::string& facet() const;
protected:
bool loadImpl(const Ice::Identity&, ObjectRecord&);
private:
std::auto_ptr<Db> _db;
std::string _facet;
std::string _dbName;
EvictorIBase* _evictor;
std::vector<IndexPtr> _indices;
Ice::CommunicatorPtr _communicator;
Ice::ObjectPtr _sampleServant;
};
template<class T>
class ObjectStore : public ObjectStoreBase, public IceUtil::Cache<Ice::Identity, T>
{
public:
ObjectStore(const std::string& facet, const std::string facetType,
bool createDb, EvictorIBase* evictor,
const std::vector<IndexPtr>& indices = std::vector<IndexPtr>(),
bool populateEmptyIndices = false) :
ObjectStoreBase(facet, facetType, createDb, evictor, indices, populateEmptyIndices)
{
}
#ifdef __BCPLUSPLUS__
bool load(const Ice::Identity& ident, const TransactionIPtr& trans, ObjectRecord& rec)
{
return ObjectStoreBase::load(ident, trans, rec);
}
#else
using ObjectStoreBase::load;
#endif
typedef IceUtil::Cache<Ice::Identity, T> Cache;
protected:
virtual IceUtil::Handle<T>
load(const Ice::Identity& ident)
{
ObjectRecord rec;
if(loadImpl(ident, rec))
{
return new T(rec, *this);
}
else
{
return 0;
}
}
virtual void
pinned(const IceUtil::Handle<T>& element, typename Cache::Position p)
{
element->init(p);
}
};
//
// Inline member function definitions
//
inline Db*
ObjectStoreBase::db() const
{
return _db.get();
}
inline const Ice::CommunicatorPtr&
ObjectStoreBase::communicator() const
{
return _communicator;
}
inline EvictorIBase*
ObjectStoreBase::evictor() const
{
return _evictor;
}
inline const std::string&
ObjectStoreBase::facet() const
{
return _facet;
}
inline const Ice::ObjectPtr&
ObjectStoreBase::sampleServant() const
{
return _sampleServant;
}
}
#endif
|
