migration::cassandra::impl::FullTableScannerAdapterBase< TableDesc > Struct Template Reference

The base class for the full table scanner adapter. It is responsible for reading the rows from the full table scanner and call the callback when a row is read. With this base class, each table adapter can focus on the actual row data converting. More...

#include <FullTableScannerAdapterBase.hpp>

Public Member Functions
	FullTableScannerAdapterBase (std::shared_ptr< CassandraMigrationBackend > backend)
	Construct a new Full Table Scanner Adapter Base object.
void	readByTokenRange (TokenRange const &range, boost::asio::yield_context yield)
	Read the row in the given token range from database, this is the adapt function for the FullTableScanner.
virtual void	onRowRead (TableDesc::Row const &row)=0
	Called when a row is read. The derived class should implement this function to convert the database blob to actual data type.

Protected Attributes
std::shared_ptr< CassandraMigrationBackend >	backend_
	The backend to use.

Detailed Description

template<TableSpec TableDesc>
struct migration::cassandra::impl::FullTableScannerAdapterBase< TableDesc >

The base class for the full table scanner adapter. It is responsible for reading the rows from the full table scanner and call the callback when a row is read. With this base class, each table adapter can focus on the actual row data converting.

Template Parameters

TableDesc

The table description, it has to be a TableSpec.

Constructor & Destructor Documentation

FullTableScannerAdapterBase()

template<TableSpec TableDesc>

migration::cassandra::impl::FullTableScannerAdapterBase< TableDesc >::FullTableScannerAdapterBase ( std::shared_ptr< CassandraMigrationBackend > backend )

inline

Construct a new Full Table Scanner Adapter Base object.

Parameters

backend

The backend

Member Function Documentation

onRowRead()

template<TableSpec TableDesc>

virtual void migration::cassandra::impl::FullTableScannerAdapterBase< TableDesc >::onRowRead ( TableDesc::Row const & row )

pure virtual

Called when a row is read. The derived class should implement this function to convert the database blob to actual data type.

Parameters

row	The row read

readByTokenRange()

template<TableSpec TableDesc>

void migration::cassandra::impl::FullTableScannerAdapterBase< TableDesc >::readByTokenRange ( TokenRange const & range, boost::asio::yield_context yield )

inline

Read the row in the given token range from database, this is the adapt function for the FullTableScanner.

Parameters

range	The token range to read
yield	The yield context

---

The documentation for this struct was generated from the following file:

• /__w/clio/clio/src/migration/cassandra/impl/FullTableScannerAdapterBase.hpp