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IDataItem.h
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1 #ifndef IDATAITEM_H
2 #define IDATAITEM_H
3 
8 
9 #include <stdexcept>
10 #include <map>
12 
16 class IDataItem : public IDBObject {
17 
18  public:
20  : m_writeStmt(0),
21  m_readStmt(0)
22  {}
23 
24  virtual std::string getTable() =0;
25 
26 
27  protected:
28  oracle::occi::Statement* m_writeStmt;
29  oracle::occi::Statement* m_readStmt;
30 
31  inline void checkPrepare() noexcept(false)
32  {
33  if (m_writeStmt == NULL) {
34  throw(std::runtime_error("Write statement not prepared"));
35  }
36  }
37 
39  {
40  if (m_writeStmt != NULL) {
41  m_conn->terminateStatement(m_writeStmt);
42  } else {
43  std::cout << "Warning from IDataItem: statement was aleady closed"<< std::endl;
44  }
45  }
46 
47 
49  {
50  m_readStmt=m_conn->createStatement();
51  }
52 
53  inline void setPrefetchRowCount(int ncount) noexcept(false)
54  {
55  m_readStmt->setPrefetchRowCount(ncount);
56  }
57 
59  {
60  if (m_readStmt != NULL) {
61  m_conn->terminateStatement(m_readStmt);
62  } else {
63  std::cout << "Warning from IDataItem: statement was aleady closed"<< std::endl;
64  }
65  }
66 
67 
68 
69  // Prepare a statement for writing operations
70  virtual void prepareWrite() noexcept(false) = 0;
71 
72 
73 };
74 
75 #endif
void setPrefetchRowCount(int ncount) noexcept(false)
Definition: IDataItem.h:53
oracle::occi::Statement * m_writeStmt
Definition: IDataItem.h:28
oracle::occi::Connection * m_conn
Definition: IDBObject.h:39
#define noexcept
#define NULL
Definition: scimark2.h:8
void checkPrepare() noexcept(false)
Definition: IDataItem.h:31
void createReadStatement() noexcept(false)
Definition: IDataItem.h:48
void terminateWriteStatement() noexcept(false)
Definition: IDataItem.h:38
oracle::occi::Statement * m_readStmt
Definition: IDataItem.h:29
void terminateReadStatement() noexcept(false)
Definition: IDataItem.h:58
virtual std::string getTable()=0
IDataItem()
Definition: IDataItem.h:19
tuple cout
Definition: gather_cfg.py:145
virtual void prepareWrite() noexcept(false)=0
volatile std::atomic< bool > shutdown_flag false