Gaudi Framework, version v20r2
	Generated: 18 Jul 2008

PoolDbTupleCallback Class Reference

#include <PoolDbTupleCallback.h>

Inheritance diagram for PoolDbTupleCallback:

[legend]Collaboration diagram for PoolDbTupleCallback:

[legend]List of all members.

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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 40 of file PoolDbTupleCallback.h.

Public Member Functions
	PoolDbTupleCallback (DataObject *pObj)
	Parameters: svc  [IN] Manager interface of conversion service
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.

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Member Typedef Documentation

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

Reflection information.

Reimplemented from pool::DataCallBack.

Definition at line 45 of file PoolDbTupleCallback.h.

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Constructor & Destructor Documentation

PoolDbTupleCallback::PoolDbTupleCallback

(

DataObject *

pObj

)

Parameters:

svc

[IN] Manager interface of conversion service

Parameters:

	pObj	[IN] Pointer to N-tuple object
	reading	[IN] Read/Write flag (Needed by base class

Returns:

Reference to object

Definition at line 24 of file PoolDbTupleCallback.cpp.

References pool::DbInstanceCount::Counter::increment(), m_refCount, s_count, and pool::DbObjectCallBack::setObject().

: 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 35 of file PoolDbTupleCallback.cpp.

References pool::DbInstanceCount::Counter::decrement(), pool::deletePtr(), pool::DbTypeInfo::deleteRef(), m_iter, s_count, and pool::DbObjectCallBack::shape().

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

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Member Function Documentation

pool::DataCallBack * PoolDbTupleCallback::clone

(

)

const [virtual]

Virtual copy.

Reimplemented from pool::DbObjectCallBack.

Definition at line 44 of file PoolDbTupleCallback.cpp.

References m_refCount.

Referenced by PoolDbNTupleCnv::fillRepRefs().

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

void PoolDbTupleCallback::release

(

)

[virtual]

Virtual delete.

Reimplemented from pool::DataCallBack.

Definition at line 52 of file PoolDbTupleCallback.cpp.

References m_refCount.

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

std::vector<void*>& PoolDbTupleCallback::addresses

(

)

[inline]

Access to the bound addresses.

Definition at line 80 of file PoolDbTupleCallback.h.

References m_addr.

Referenced by PoolDbNTupleCnv::bindRead(), and PoolDbNTupleCnv::bindWrite().

{  return m_addr;     }

const std::vector<int>& PoolDbTupleCallback::mapping

(

)

[inline]

Access re-direction map.

Definition at line 82 of file PoolDbTupleCallback.h.

References m_map.

Referenced by PoolDbNTupleCnv::bindRead(), PoolDbNTupleCnv::bindWrite(), and PoolDbNTupleCnv::readData().

{  return m_map;      }

std::vector<PoolDbTokenWrap*>& PoolDbTupleCallback::links

(

)

[inline]

Access to pointers of the links.

Definition at line 84 of file PoolDbTupleCallback.h.

References m_plinks.

Referenced by PoolDbNTupleCnv::bindRead(), PoolDbNTupleCnv::bindWrite(), and PoolDbNTupleCnv::readData().

{  return m_plinks; }

pool::DbBlob& PoolDbTupleCallback::stream

(

)

[inline]

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

Definition at line 86 of file PoolDbTupleCallback.h.

References m_stream.

Referenced by PoolDbNTupleCnv::bindWrite(), and PoolDbNTupleCnv::readData().

{  return m_stream;   }

pool::DbSelect* PoolDbTupleCallback::iterator

(

)

const [inline]

Access to select statement.

Definition at line 88 of file PoolDbTupleCallback.h.

References m_iter.

Referenced by PoolDbNTupleCnv::updateObj().

{  return m_iter;     }

pool::DbSelect * PoolDbTupleCallback::select

(

ISelectStatement *

sel

)

Select new tokens according to new selection criteria.

Definition at line 93 of file PoolDbTupleCallback.cpp.

References pool::DbContainer::containedIn(), ISelectStatement::criteria(), pool::deletePtr(), pool::DbHandleBase< T >::isValid(), m_cntH, m_iter, pool::DbContainer::name(), pool::DbSelect::start(), ISelectStatement::STRING, and ISelectStatement::type().

Referenced by PoolDbNTupleCnv::updateObj().

                                                  {
  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;
}

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 60 of file PoolDbTupleCallback.cpp.

References pool::DbTypeInfo::addRef(), std::vector< _Tp, _Alloc >::begin(), pool::DbTypeInfo::columns(), std::vector< _Tp, _Alloc >::end(), INTuple::items(), m_addr, m_cntH, m_links, m_map, m_plinks, m_stream, std::vector< _Tp, _Alloc >::resize(), pool::DbObjectCallBack::setShape(), and std::vector< _Tp, _Alloc >::size().

{
  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::start	(	CallType	action_type,
		void *	pObj,
		void **	context
	)			[virtual]

Callback when a read sequence should be started.

Reimplemented from pool::DbObjectCallBack.

Definition at line 107 of file PoolDbTupleCallback.cpp.

References pool::Success.

{
  return pool::Success;
}

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 115 of file PoolDbTupleCallback.cpp.

References pool::Success.

{
  return pool::Success;
}

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 123 of file PoolDbTupleCallback.cpp.

References pool::DataCallBack::GET, m_addr, pool::DataCallBack::PUT, and pool::Success.

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

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Member Data Documentation

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

Vector with all addresses mapped.

Definition at line 47 of file PoolDbTupleCallback.h.

Referenced by addresses(), bind(), and configure().

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

Vector to store pointers link information for address columns.

Definition at line 49 of file PoolDbTupleCallback.h.

Referenced by configure().

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

Vector to store pointers link information for address columns.

Definition at line 51 of file PoolDbTupleCallback.h.

Referenced by configure(), and links().

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

Redirection map between N-tuple columns and DbTypeInfo columns.

Definition at line 53 of file PoolDbTupleCallback.h.

Referenced by configure(), and mapping().

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

Pointer to hold the select statement.

Definition at line 55 of file PoolDbTupleCallback.h.

Referenced by iterator(), select(), and ~PoolDbTupleCallback().

pool::DbBlob PoolDbTupleCallback::m_stream [private]

Reference to streambuffer to hold blobified data.

Definition at line 57 of file PoolDbTupleCallback.h.

Referenced by configure(), and stream().

pool::DbContainer PoolDbTupleCallback::m_cntH [private]

Pointer to pool container handle.

Definition at line 59 of file PoolDbTupleCallback.h.

Referenced by configure(), and select().

long PoolDbTupleCallback::m_refCount [private]

Reference counter.

Definition at line 61 of file PoolDbTupleCallback.h.

Referenced by clone(), PoolDbTupleCallback(), and release().

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r2/GaudiPoolDb/v4r0/GaudiPoolDb/PoolDbTupleCallback.h
• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r2/GaudiPoolDb/v4r0/src/PoolDbTupleCallback.cpp

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