PoolDbTupleCallback Class Reference

#include <PoolDbTupleCallback.h>

Inheritance diagram for PoolDbTupleCallback:

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Collaboration diagram for PoolDbTupleCallback:

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List of all members.

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)
	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.

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.

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 28 of file PoolDbTupleCallback.cpp.

00029 : pool::DbDefaultDataHandler(),
00030   pool::DbObjectCallBack(0), 
00031   m_iter(0), m_cntH(pool::POOL_StorageType)
00032 {
00033   m_refCount = 1;
00034   setObject(pObj);
00035   s_count->increment();
00036 }

PoolDbTupleCallback::~PoolDbTupleCallback ( ) [virtual]

Standard Destructor.

Definition at line 39 of file PoolDbTupleCallback.cpp.

00040 {
00041   pool::deletePtr(m_iter);
00042   s_count->decrement();
00043   const pool::DbTypeInfo* typ = (const pool::DbTypeInfo*)shape();
00044   if ( typ ) typ->deleteRef();
00045 }

Member Function Documentation

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

Virtual copy.

Reimplemented from pool::DbObjectCallBack.

Definition at line 48 of file PoolDbTupleCallback.cpp.

00049 {
00050   PoolDbTupleCallback* cb = const_cast<PoolDbTupleCallback*>(this);
00051   cb->m_refCount++;
00052   return cb;
00053 }

void PoolDbTupleCallback::release ( ) [virtual]

Virtual delete.

Reimplemented from pool::DataCallBack.

Definition at line 56 of file PoolDbTupleCallback.cpp.

00057 {
00058   if ( --m_refCount <= 0 ) {
00059     delete this;
00060   }
00061 }

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

Access to the bound addresses.

Definition at line 80 of file PoolDbTupleCallback.h.

00080 {  return m_addr;     }

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

Access re-direction map.

Definition at line 82 of file PoolDbTupleCallback.h.

00082 {  return m_map;      }

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

Access to pointers of the links.

Definition at line 84 of file PoolDbTupleCallback.h.

00084 {  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.

00086 {  return m_stream;   }

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

Access to select statement.

Definition at line 88 of file PoolDbTupleCallback.h.

00088 {  return m_iter;     }

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

Select new tokens according to new selection criteria.

Definition at line 97 of file PoolDbTupleCallback.cpp.

00097                                                   {
00098   pool::deletePtr(m_iter);
00099   if ( m_cntH.isValid() )  {
00100     std::string criteria = (sel && (sel->type() & ISelectStatement::STRING))
00101       ? sel->criteria() : std::string("");
00102     m_iter = new pool::DbSelect( criteria );
00103     pool::DbDatabase dbH = m_cntH.containedIn();
00104     m_iter->start(dbH, m_cntH.name());
00105   }
00106   return m_iter;
00107 }

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 64 of file PoolDbTupleCallback.cpp.

00067 {
00068   pool::DbTypeInfo::Columns::const_iterator ic;
00069   const INTuple::ItemContainer& items = pTuple->items();
00070   const pool::DbTypeInfo::Columns& cols = typ->columns();
00071   size_t colsize = cols.size();
00072   m_map.resize(items.size()+1,-1);
00073   for(size_t item_no = 0; item_no < items.size(); ++item_no ) {
00074     int icc = 0;
00075     m_map[item_no] = -1;
00076     const std::string& itm_nam = items[item_no]->name();
00077     for (ic=cols.begin(); ic != cols.end(); ++ic, ++icc )  {
00078       if ( (*ic)->name() == itm_nam )  {
00079         m_map[item_no] = icc;
00080         break;
00081       }
00082     }
00083   }
00084   m_addr.resize(colsize);
00085   m_addr[colsize-1] = &m_stream;
00086   m_links.resize(m_map.size());
00087   m_plinks.resize(m_map.size());
00088   for(size_t i = 0; i < m_map.size(); ++i )  {
00089     m_plinks[i] = &m_links[i];
00090   }
00091   m_cntH = cntH;
00092   typ->addRef();
00093   setShape(typ);
00094 }

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 111 of file PoolDbTupleCallback.cpp.

00114 {
00115   return pool::Success;
00116 }

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 119 of file PoolDbTupleCallback.cpp.

00121 {
00122   return pool::Success;
00123 }

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 127 of file PoolDbTupleCallback.cpp.

00132 {
00133   switch(action_type)  {
00134   case GET:
00135     *data_pointer = m_addr[col_number];
00136     break;
00137   case PUT:
00138     *data_pointer = m_addr[col_number];
00139     break;
00140   }
00141   return pool::Success;
00142 }

Member Data Documentation

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

Vector with all addresses mapped.

Definition at line 47 of file PoolDbTupleCallback.h.

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

Vector to store pointers link information for address columns.

Definition at line 49 of file PoolDbTupleCallback.h.

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

Vector to store pointers link information for address columns.

Definition at line 51 of file PoolDbTupleCallback.h.

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

Redirection map between N-tuple columns and DbTypeInfo columns.

Definition at line 53 of file PoolDbTupleCallback.h.

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

Pointer to hold the select statement.

Definition at line 55 of file PoolDbTupleCallback.h.

pool::DbBlob PoolDbTupleCallback::m_stream [private]

Reference to streambuffer to hold blobified data.

Definition at line 57 of file PoolDbTupleCallback.h.

pool::DbContainer PoolDbTupleCallback::m_cntH [private]

Pointer to pool container handle.

Definition at line 59 of file PoolDbTupleCallback.h.

long PoolDbTupleCallback::m_refCount [private]

Reference counter.

Definition at line 61 of file PoolDbTupleCallback.h.

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

/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r4/GaudiPoolDb/GaudiPoolDb/PoolDbTupleCallback.h
/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r4/GaudiPoolDb/src/PoolDbTupleCallback.cpp

	Gaudi Framework, version v20r4
	Generated: 8 Jan 2009

Gaudi Framework, version v20r4

PoolDbTupleCallback Class Reference

Detailed Description

Public Member Functions

Private Types

Private Attributes

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation