ora::WriteBuffer Class Reference

Public Member Functions
size_t	flush ()
void	registerForWrite (int oid, const void *data)
	WriteBuffer (ContainerSchema &contSchema)
	~WriteBuffer ()

Private Attributes
std::vector< std::pair< int, const void * > >	m_buffer
ContainerSchema &	m_contSchema

Detailed Description

Definition at line 22 of file DatabaseContainer.cc.

Constructor & Destructor Documentation

ora::WriteBuffer::WriteBuffer ( ContainerSchema &  contSchema )

inlineexplicit

Definition at line 24 of file DatabaseContainer.cc.

                                                         :
        m_buffer(),
        m_contSchema( contSchema ){
      }

ora::WriteBuffer::~WriteBuffer ( )

inline

Definition at line 29 of file DatabaseContainer.cc.

                    {
      }

Member Function Documentation

size_t ora::WriteBuffer::flush ( )

inline

Definition at line 36 of file DatabaseContainer.cc.

References ora::InputRelationalData::addId(), ora::MappingElement::columnNames(), edm::TypeWithDict::cppName(), data, ora::MappingElement::end(), ora::MappingElement::find(), m_buffer, m_contSchema, ora::ContainerSchema::mapping(), ora::RelationalStreamerFactory::newWriter(), ora::ContainerSchema::storageSchema(), ora::MappingElement::tableName(), ora::throwException(), ora::MappingTree::topElement(), and ora::ContainerSchema::type().

                    {
        size_t nobj = 0;
        if( m_buffer.size() ){
      MappingElement& topLevelMapping = m_contSchema.mapping( true ).topElement();
      RelationalBuffer operationBuffer( m_contSchema.storageSchema() );
      InsertOperation* topLevelInsert = &operationBuffer.newInsert( topLevelMapping.tableName() );
      topLevelInsert->addId(  topLevelMapping.columnNames()[ 0 ] );
      const edm::TypeWithDict& type = m_contSchema.type();
      MappingElement::iterator iMap = topLevelMapping.find( type.cppName() );
      // the first inner mapping is the relevant...
      if( iMap == topLevelMapping.end()){
        throwException("Could not find a mapping element for class \""+
               type.cppName()+"\"",
               "WriteBuffer::flush");
      }
      MappingElement& mapping = iMap->second;
      RelationalStreamerFactory streamerFactory( m_contSchema );
      DataElement topLevelElement;
      std::auto_ptr<IRelationalWriter> writer( streamerFactory.newWriter( type, mapping ) );
      writer->build( topLevelElement, *topLevelInsert, operationBuffer );
      
      for( std::vector<std::pair<int, const void*> >::const_iterator iW = m_buffer.begin();
           iW != m_buffer.end(); ++iW ){
        int oid = iW->first;
        const void* data = iW->second;
        coral::AttributeList& dataBuff = topLevelInsert->data();
        dataBuff.begin()->data<int>() = oid;
        writer->write( oid, data );
        if( operationBuffer.flush() ) nobj++;
      }
      m_buffer.clear();
    }
        return nobj;
      }

void ora::WriteBuffer::registerForWrite ( int  oid, const void *  data  )

inline

Definition at line 32 of file DatabaseContainer.cc.

References m_buffer.

                                                        {
        m_buffer.push_back( std::make_pair(oid, data ) );
      }

Member Data Documentation

std::vector<std::pair<int, const void*> > ora::WriteBuffer::m_buffer

private

Definition at line 73 of file DatabaseContainer.cc.

Referenced by flush(), and registerForWrite().

ContainerSchema& ora::WriteBuffer::m_contSchema

private

Definition at line 74 of file DatabaseContainer.cc.

Referenced by flush().