FIX::DatabaseConnectionPool< T > Class Template Reference

#include <DatabaseConnectionPool.h>

Public Member Functions
	DatabaseConnectionPool (bool poolConnections)
T *	create (const DatabaseConnectionID &id)
bool	destroy (T *pConnection)

Private Types
typedef std::pair< T *, int >	Connection
typedef std::map< DatabaseConnectionID, Connection >	Connections

Private Attributes
Connections	m_connections
bool	m_poolConnections

Detailed Description

template<typename T>
class FIX::DatabaseConnectionPool< T >

Definition at line 35 of file DatabaseConnectionPool.h.

Member Typedef Documentation

Connection

template<typename T>

typedef std::pair<T*, int> FIX::DatabaseConnectionPool< T >::Connection

private

Definition at line 82 of file DatabaseConnectionPool.h.

Connections

template<typename T>

typedef std::map<DatabaseConnectionID, Connection> FIX::DatabaseConnectionPool< T >::Connections

private

Definition at line 84 of file DatabaseConnectionPool.h.

Constructor & Destructor Documentation

DatabaseConnectionPool()

template<typename T>

FIX::DatabaseConnectionPool< T >::DatabaseConnectionPool ( bool poolConnections )

inline

Definition at line 38 of file DatabaseConnectionPool.h.

  : m_poolConnections( poolConnections ) {}

References m_poolConnections.

Member Function Documentation

create()

template<typename T>

T * FIX::DatabaseConnectionPool< T >::create ( const DatabaseConnectionID & id )

inline

Definition at line 41 of file DatabaseConnectionPool.h.

  {
    if( !m_poolConnections )
      return new T( id );
 
    if( m_connections.find( id ) == m_connections.end() )
    {
      m_connections[id] = Connection
        ( new T(id), 0 );
    }
    m_connections[id].second++;
    return m_connections[id].first;
  }

References m_connections, and m_poolConnections.

destroy()

template<typename T>

bool FIX::DatabaseConnectionPool< T >::destroy ( T * pConnection )

inline

Definition at line 55 of file DatabaseConnectionPool.h.

  {
    if( !m_poolConnections )
    {
      delete pConnection;
      return true;
    }
 
    const DatabaseConnectionID& id = pConnection->connectionID();
    if( m_connections.find( id ) == m_connections.end() )
      return false;
 
    Connection& connection = m_connections[id];
    if( connection.first != pConnection )
      return false;
 
    connection.second--;
    if( connection.second == 0 )
    {
      m_connections.erase( id );
      delete pConnection;
    }
    return true;
  }

References m_connections, and m_poolConnections.

Member Data Documentation

m_connections

template<typename T>

Connections FIX::DatabaseConnectionPool< T >::m_connections

private

Definition at line 86 of file DatabaseConnectionPool.h.

Referenced by create(), and destroy().

m_poolConnections

template<typename T>

bool FIX::DatabaseConnectionPool< T >::m_poolConnections

private

Definition at line 87 of file DatabaseConnectionPool.h.

Referenced by create(), DatabaseConnectionPool(), and destroy().

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The documentation for this class was generated from the following file:

• DatabaseConnectionPool.h