ora::WriteBuffer Class Reference

List of all members.

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

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Detailed Description

Definition at line 20 of file DatabaseContainer.cc.

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Constructor & Destructor Documentation

ora::WriteBuffer::WriteBuffer

(

ContainerSchema &

contSchema

)

[inline, explicit]

Definition at line 22 of file DatabaseContainer.cc.

                                                         :
        m_buffer(),
        m_contSchema( contSchema ){
      }

ora::WriteBuffer::~WriteBuffer

(

)

[inline]

Definition at line 27 of file DatabaseContainer.cc.

                    {
      }

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Member Function Documentation

size_t ora::WriteBuffer::flush

(

)

[inline]

Definition at line 34 of file DatabaseContainer.cc.

References ora::InputRelationalData::addId(), ora::MappingElement::columnNames(), 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 Reflex::Type& type = m_contSchema.type();
          MappingElement::iterator iMap = topLevelMapping.find( type.Name(Reflex::SCOPED) );
          // the first inner mapping is the relevant...
          if( iMap == topLevelMapping.end()){
            throwException("Could not find a mapping element for class \""+
                           type.Name(Reflex::SCOPED)+"\"",
                           "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 30 of file DatabaseContainer.cc.

References m_buffer.

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

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Member Data Documentation

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

Definition at line 71 of file DatabaseContainer.cc.

Referenced by flush(), and registerForWrite().

ContainerSchema& ora::WriteBuffer::m_contSchema [private]

Definition at line 72 of file DatabaseContainer.cc.

Referenced by flush().