ora::BlobReader Class Reference

#include <BlobStreamer.h>

Inheritance diagram for ora::BlobReader:

List of all members.

Public Member Functions
	BlobReader (const Reflex::Type &objectType, MappingElement &mapping, ContainerSchema &contSchema)
bool	build (DataElement &dataElement, IRelationalData &relationalData)
void	clear ()
void	read (void *data)
	Reads a data element.
void	select (int oid)
void	setRecordId (const std::vector< int > &identity)
virtual	~BlobReader ()
Private Attributes
IBlobStreamingService *	m_blobReader
int	m_columnIndex
DataElement *	m_dataElement
MappingElement &	m_mapping
Reflex::Type	m_objectType
IRelationalData *	m_relationalData
ContainerSchema &	m_schema

---

Detailed Description

Definition at line 71 of file BlobStreamer.h.

---

Constructor & Destructor Documentation

ora::BlobReader::BlobReader	(	const Reflex::Type &	objectType,
		MappingElement &	mapping,
		ContainerSchema &	contSchema
	)

Definition at line 114 of file BlobStreamer.cc.

                                                          :
  m_objectType( objectType ),
  m_mapping( mapping ),
  m_columnIndex( -1 ),
  m_schema( contSchema ),
  m_dataElement( 0 ),
  m_relationalData( 0 ),
  m_blobReader( 0 ){
}

ora::BlobReader::~BlobReader

(

)

[virtual]

Definition at line 126 of file BlobStreamer.cc.

                          {
}

---

Member Function Documentation

bool ora::BlobReader::build	(	DataElement &	dataElement,
		IRelationalData &	relationalData
	)		[virtual]

Implements ora::IRelationalReader.

Definition at line 129 of file BlobStreamer.cc.

References ora::IRelationalData::addBlobData(), and ora::throwException().

                                                            {
  
  if( m_mapping.columnNames().size() == 0 ){
    throwException( "The mapping element does not contain columns.",
                    "BlobReader::build");
  }

  m_dataElement = &dataElement;
  std::string columnName = m_mapping.columnNames()[0];
  m_columnIndex = relationalData.addBlobData( columnName );
  m_relationalData = &relationalData;
  m_blobReader = m_schema.blobStreamingService();
  if(!m_blobReader){
    throwException("Blob Streaming Service is not installed.",
                   "BlobReader::build");
  }
  return true;
}

void ora::BlobReader::clear

(

void

)

[virtual]

Implements ora::IRelationalReader.

Definition at line 165 of file BlobStreamer.cc.

                         {
}

void ora::BlobReader::read

(

void *

address

)

[virtual]

Reads a data element.

Implements ora::IRelationalReader.

Definition at line 155 of file BlobStreamer.cc.

References ora::throwException().

                                    {
  if( ! m_dataElement ){
    throwException( "The streamer has not been built.",
                    "BlobReader::read");
  }
  void* dataElementAddress = m_dataElement->address( data );
  coral::Attribute& relDataElement = m_relationalData->data()[ m_columnIndex ];
  m_blobReader->read(relDataElement.data<coral::Blob>(), dataElementAddress, m_objectType );
}

void ora::BlobReader::select

(

int

oid

)

[virtual]

Implements ora::IRelationalReader.

Definition at line 149 of file BlobStreamer.cc.

                               {
}

void ora::BlobReader::setRecordId

(

const std::vector< int > &

identity

)

[virtual]

Implements ora::IRelationalReader.

Definition at line 152 of file BlobStreamer.cc.

                                                      {
}

---

Member Data Documentation

IBlobStreamingService* ora::BlobReader::m_blobReader [private]

Definition at line 97 of file BlobStreamer.h.

int ora::BlobReader::m_columnIndex [private]

Definition at line 91 of file BlobStreamer.h.

DataElement* ora::BlobReader::m_dataElement [private]

Definition at line 95 of file BlobStreamer.h.

MappingElement& ora::BlobReader::m_mapping [private]

Definition at line 90 of file BlobStreamer.h.

Reflex::Type ora::BlobReader::m_objectType [private]

Definition at line 89 of file BlobStreamer.h.

IRelationalData* ora::BlobReader::m_relationalData [private]

Definition at line 96 of file BlobStreamer.h.

ContainerSchema& ora::BlobReader::m_schema [private]

Definition at line 92 of file BlobStreamer.h.