Description: Specialized callback to handle N-tuple interactions while saving and lodaing POOL data. More...

#include <PoolDbTupleCallback.h>

Inheritance diagram for PoolDbTupleCallback:

Collaboration diagram for PoolDbTupleCallback:

Public Member Functions
	PoolDbTupleCallback (DataObject *pObj)
	Initializing constructor for N-tuple callback object.
virtual	~PoolDbTupleCallback ()
	Standard Destructor.
virtual pool::DataCallBack *	clone () const
	Virtual copy.
virtual void	release ()
	Virtual delete.
std::vector< void * > &	addresses ()
	Access to the bound addresses.
const std::vector< int > &	mapping ()
	Access re-direction map.
std::vector< PoolDbTokenWrap * > &	links ()
	Access to pointers of the links.
pool::DbBlob &	stream ()
	Access to streambuffer object, for items which must be blobified.
pool::DbSelect *	iterator () const
	Access to select statement.
pool::DbSelect *	select (ISelectStatement *sel)
	Select new tokens according to new selection criteria.
void	configure (const INTuple pTuple, const pool::DbTypeInfo typ, const pool::DbContainer &cntH)
	Configure N-tuple callback and store properties for re-use.
virtual pool::DbStatus	start (CallType action_type, void pObj, void *context)
	Callback when a read sequence should be started.
virtual pool::DbStatus	end (CallType action_type, void *context)
	Callback when a read sequence should be started.
virtual pool::DbStatus	bind (CallType action_type, const pool::DbColumn col_ident, int col_number, void context, void **data_pointer)
	Callback to retrieve the absolute address of a column.
Private Types
typedef const ROOT::Reflex::Type &	TypeH
	Reflection information.
Private Attributes
std::vector< void * >	m_addr
	Vector with all addresses mapped.
std::vector< PoolDbTokenWrap >	m_links
	Vector to store pointers link information for address columns.
std::vector< PoolDbTokenWrap * >	m_plinks
	Vector to store pointers link information for address columns.
std::vector< int >	m_map
	Redirection map between N-tuple columns and DbTypeInfo columns.
pool::DbSelect *	m_iter
	Pointer to hold the select statement.
pool::DbBlob	m_stream
	Reference to streambuffer to hold blobified data.
pool::DbContainer	m_cntH
	Pointer to pool container handle.
long	m_refCount
	Reference counter.

Detailed Description

Description: Specialized callback to handle N-tuple interactions while saving and lodaing POOL data.

Author:: M.Frank

Version:: 1.0

Definition at line 41 of file PoolDbTupleCallback.h.

Member Typedef Documentation

typedef const ROOT::Reflex::Type& PoolDbTupleCallback::TypeH [private]

Reflection information.

Reimplemented from pool::DataCallBack.

Definition at line 46 of file PoolDbTupleCallback.h.

Constructor & Destructor Documentation

PoolDbTupleCallback::PoolDbTupleCallback ( DataObject * pObj )

Initializing constructor for N-tuple callback object.

Parameters:

svc	[IN] Manager interface of conversion service
pObj	[IN] Pointer to N-tuple object
reading	[IN] Read/Write flag (Needed by base class

Returns:: Reference to object

Definition at line 33 of file PoolDbTupleCallback.cpp.

: pool::DbDefaultDataHandler(),
  pool::DbObjectCallBack(0), 
  m_iter(0), m_cntH(pool::POOL_StorageType)
{
  m_refCount = 1;
  setObject(pObj);
  s_count->increment();
}

PoolDbTupleCallback::~PoolDbTupleCallback ( ) [virtual]

Standard Destructor.

Definition at line 44 of file PoolDbTupleCallback.cpp.

{
  pool::deletePtr(m_iter);
  s_count->decrement();
  const pool::DbTypeInfo* typ = (const pool::DbTypeInfo*)shape();
  if ( typ ) typ->deleteRef();
}

Member Function Documentation

std::vector<void*>& PoolDbTupleCallback::addresses ( ) [inline]

Access to the bound addresses.

Definition at line 81 of file PoolDbTupleCallback.h.

{  return m_addr;     }

pool::DbStatus PoolDbTupleCallback::bind	(	CallType	action_type,
		const pool::DbColumn *	col_ident,
		int	col_number,
		void *	context,
		void **	data_pointer
	)		`[virtual]`

Callback to retrieve the absolute address of a column.

Reimplemented from pool::DbObjectCallBack.

Definition at line 132 of file PoolDbTupleCallback.cpp.

{
  switch(action_type)  {
  case GET:
    *data_pointer = m_addr[col_number];
    break;
  case PUT:
    *data_pointer = m_addr[col_number];
    break;
  }
  return pool::Success;
}

pool::DataCallBack * PoolDbTupleCallback::clone ( ) const [virtual]

Virtual copy.

Reimplemented from pool::DbObjectCallBack.

Definition at line 53 of file PoolDbTupleCallback.cpp.

{
  PoolDbTupleCallback* cb = const_cast<PoolDbTupleCallback*>(this);
  cb->m_refCount++;
  return cb;
}

void PoolDbTupleCallback::configure	(	const INTuple *	pTuple,
		const pool::DbTypeInfo *	typ,
		const pool::DbContainer &	cntH
	)

Configure N-tuple callback and store properties for re-use.

Definition at line 69 of file PoolDbTupleCallback.cpp.

{
  pool::DbTypeInfo::Columns::const_iterator ic;
  const INTuple::ItemContainer& items = pTuple->items();
  const pool::DbTypeInfo::Columns& cols = typ->columns();
  size_t colsize = cols.size();
  m_map.resize(items.size()+1,-1);
  for(size_t item_no = 0; item_no < items.size(); ++item_no ) {
    int icc = 0;
    m_map[item_no] = -1;
    const std::string& itm_nam = items[item_no]->name();
    for (ic=cols.begin(); ic != cols.end(); ++ic, ++icc )  {
      if ( (*ic)->name() == itm_nam )  {
        m_map[item_no] = icc;
        break;
      }
    }
  }
  m_addr.resize(colsize);
  m_addr[colsize-1] = &m_stream;
  m_links.resize(m_map.size());
  m_plinks.resize(m_map.size());
  for(size_t i = 0; i < m_map.size(); ++i )  {
    m_plinks[i] = &m_links[i];
  }
  m_cntH = cntH;
  typ->addRef();
  setShape(typ);
}

pool::DbStatus PoolDbTupleCallback::end	(	CallType	action_type,
		void *	context
	)		`[virtual]`

Callback when a read sequence should be started.

Reimplemented from pool::DbObjectCallBack.

Definition at line 124 of file PoolDbTupleCallback.cpp.

{
  return pool::Success;
}

pool::DbSelect* PoolDbTupleCallback::iterator ( ) const [inline]

Access to select statement.

Definition at line 89 of file PoolDbTupleCallback.h.

{  return m_iter;     }

std::vector<PoolDbTokenWrap*>& PoolDbTupleCallback::links ( ) [inline]

Access to pointers of the links.

Definition at line 85 of file PoolDbTupleCallback.h.

{  return m_plinks; }

const std::vector<int>& PoolDbTupleCallback::mapping ( ) [inline]

Access re-direction map.

Definition at line 83 of file PoolDbTupleCallback.h.

{  return m_map;      }

void PoolDbTupleCallback::release ( ) [virtual]

Virtual delete.

Reimplemented from pool::DataCallBack.

Definition at line 61 of file PoolDbTupleCallback.cpp.

{
  if ( --m_refCount <= 0 ) {
    delete this;
  }
}

pool::DbSelect * PoolDbTupleCallback::select ( ISelectStatement * sel )

Select new tokens according to new selection criteria.

Definition at line 102 of file PoolDbTupleCallback.cpp.

                                                  {
  pool::deletePtr(m_iter);
  if ( m_cntH.isValid() )  {
    std::string criteria = (sel && (sel->type() & ISelectStatement::STRING))
      ? sel->criteria() : std::string("");
    m_iter = new pool::DbSelect( criteria );
    pool::DbDatabase dbH = m_cntH.containedIn();
    m_iter->start(dbH, m_cntH.name());
  }
  return m_iter;
}

pool::DbStatus PoolDbTupleCallback::start	(	CallType	action_type,
		void *	pObj,
		void **	context
	)		`[virtual]`

Callback when a read sequence should be started.

Reimplemented from pool::DbObjectCallBack.

Definition at line 116 of file PoolDbTupleCallback.cpp.

{
  return pool::Success;
}

pool::DbBlob& PoolDbTupleCallback::stream ( ) [inline]

Access to streambuffer object, for items which must be blobified.

Definition at line 87 of file PoolDbTupleCallback.h.

{  return m_stream;   }

Member Data Documentation

std::vector< void* > PoolDbTupleCallback::m_addr [private]

Vector with all addresses mapped.

Definition at line 48 of file PoolDbTupleCallback.h.

pool::DbContainer PoolDbTupleCallback::m_cntH [private]

Pointer to pool container handle.

Definition at line 60 of file PoolDbTupleCallback.h.

pool::DbSelect* PoolDbTupleCallback::m_iter [private]

Pointer to hold the select statement.

Definition at line 56 of file PoolDbTupleCallback.h.

std::vector<PoolDbTokenWrap> PoolDbTupleCallback::m_links [private]

Vector to store pointers link information for address columns.

Definition at line 50 of file PoolDbTupleCallback.h.

std::vector<int> PoolDbTupleCallback::m_map [private]

Redirection map between N-tuple columns and DbTypeInfo columns.

Definition at line 54 of file PoolDbTupleCallback.h.

std::vector<PoolDbTokenWrap*> PoolDbTupleCallback::m_plinks [private]

Vector to store pointers link information for address columns.

Definition at line 52 of file PoolDbTupleCallback.h.

long PoolDbTupleCallback::m_refCount [private]

Reference counter.

Definition at line 62 of file PoolDbTupleCallback.h.

pool::DbBlob PoolDbTupleCallback::m_stream [private]

Reference to streambuffer to hold blobified data.

Definition at line 58 of file PoolDbTupleCallback.h.

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

/afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiPoolDb/GaudiPoolDb/PoolDbTupleCallback.h
/afs/.cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r2/GaudiPoolDb/src/PoolDbTupleCallback.cpp

Gaudi Framework, version v22r2

PoolDbTupleCallback Class Reference

Public Member Functions

Private Types

Private Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation