Base class for the Data Manager Accessor classes. More...

#include <DataManAccessor.h>

Inheritance diagram for casa::RODataManAccessor:

Public Member Functions
	RODataManAccessor ()
	Construct an empty object.
	RODataManAccessor (const Table &table, const String &name, Bool byColumn)
	Construct the accessor object for a data manager in the table.
virtual	~RODataManAccessor ()
void	setProperties (const Record &) const
	Set data manager properties using the fields in the record.
Record	getProperties () const
	Get data manager properties as a record.
String	dataManagerType () const
	Get the data manager type.
String	dataManagerName () const
	Get the data manager name.
uInt	dataManagerSeqNr () const
	Get the data manager sequence nr.
void	showCacheStatistics (ostream &os) const
	Show IO statistics.
Protected Member Functions
DataManager *	baseDataManager () const
	Get the data manager for the given data manager or column name.
Private Attributes
DataManager *	itsDataManager

Detailed Description

Base class for the Data Manager Accessor classes.

Intended use:

Internal

Review Status

Reviewed By:: UNKNOWN
Date Reviewed:: before2004/08/25

Prerequisite

DataManager

Synopsis

The Table system has one or more data managers underneath. Once a table is constructed, these data managers are invisible and there is no way to get access to them. However, sometimes limited access to them is needed (e.g. to set the size of an internal cache).

This class should be used as the base class for specialized Data Manager Accessor classes (e.g. class

ROIncrementalStManAccessor . This base class provides the functionality to get the DataManager object for a given column.

Motivation

This base class makes it possible that every derived class can get the data manager, because RODataManAccessor is a friend of class Table. Otherwise all accessor classes needed to be friend of Table.

Definition at line 77 of file DataManAccessor.h.

Constructor & Destructor Documentation

casa::RODataManAccessor::RODataManAccessor ( ) [inline]

Construct an empty object.

Definition at line 81 of file DataManAccessor.h.

casa::RODataManAccessor::RODataManAccessor	(	const Table &	table,
		const String &	name,
		Bool	byColumn
	)

Construct the accessor object for a data manager in the table.

An exception is thrown if the name of the data manager or column is unknown.

virtual casa::RODataManAccessor::~RODataManAccessor ( ) [virtual]

Member Function Documentation

DataManager* casa::RODataManAccessor::baseDataManager ( ) const [inline, protected]

Get the data manager for the given data manager or column name.

Definition at line 118 of file DataManAccessor.h.

References itsDataManager.

String casa::RODataManAccessor::dataManagerName ( ) const [inline]

Get the data manager name.

Definition at line 105 of file DataManAccessor.h.

References casa::DataManager::dataManagerName(), and itsDataManager.

uInt casa::RODataManAccessor::dataManagerSeqNr ( ) const [inline]

Get the data manager sequence nr.

Definition at line 109 of file DataManAccessor.h.

References itsDataManager, and casa::DataManager::sequenceNr().

String casa::RODataManAccessor::dataManagerType ( ) const [inline]

Get the data manager type.

Definition at line 101 of file DataManAccessor.h.

References casa::DataManager::dataManagerType(), and itsDataManager.

Record casa::RODataManAccessor::getProperties ( ) const

Get data manager properties as a record.

void casa::RODataManAccessor::setProperties ( const Record & ) const

Set data manager properties using the fields in the record.

Each data manager has its specific set of properties.

void casa::RODataManAccessor::showCacheStatistics ( ostream & os ) const [inline]

Show IO statistics.

Definition at line 113 of file DataManAccessor.h.

References itsDataManager, and casa::DataManager::showCacheStatistics().

Member Data Documentation

DataManager* casa::RODataManAccessor::itsDataManager [private]

Definition at line 122 of file DataManAccessor.h.

Referenced by baseDataManager(), dataManagerName(), dataManagerSeqNr(), dataManagerType(), and showCacheStatistics().

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

casacore/tables/Tables/DataManAccessor.h

Public Member Functions

Protected Member Functions

Private Attributes