MSFeed.h

Classes

MSFeed -- A Table intended to hold a MeasurementSet FEED table. (full description)

class MSFeed:public MSFeedEnums, public MSTable<MSFeedEnums::PredefinedColumns, MSFeedEnums::PredefinedKeywords>

Interface

Public Members
MSFeed ()
MSFeed (const String &tableName, TableOption = Table::Old)
MSFeed (const String &tableName, const String &tableDescName, TableOption = Table::Old)
MSFeed (SetupNewTable &newTab, uInt nrrow = 0, Bool initialize = False)
MSFeed (const Table &table)
MSFeed (const MSFeed &other)
~MSFeed()
MSFeed& operator=(const MSFeed&)
MSFeed referenceCopy(const String& newTableName, const Block<String>& writableColumns) const
static void init()

Description

Review Status

Reviewed By:
Bob Garwood
Date Reviewed:
1997/02/01

Prerequisite

Etymology

MSFeed stands for the MeasurementSet Feed table.

Synopsis

An MSFeed is a table intended to hold the FEED table for the MeasurementSet. It has an identical set of member functions as the main MeasurementSet class, except (currently) for the default calibration members. For further info and examples see the MeasurementSet class.

Example

See the MeasurementSet for an example of how to access and use this class.

Motivation

It was found that subtables and the main table of the MeasurementSet have a lot in common, therefore they derive their interface from the same base class. Each subtable has its own class to keep the enum definitions and conversion functions in separate scopes.

To Do

Member Description

MSFeed ()

This constructs an empty MSFeed.

MSFeed (const String &tableName, TableOption = Table::Old)
MSFeed (const String &tableName, const String &tableDescName, TableOption = Table::Old)
MSFeed (SetupNewTable &newTab, uInt nrrow = 0, Bool initialize = False)
MSFeed (const Table &table)
MSFeed (const MSFeed &other)

These constructors mirror the Table ones with additional checking on validity (verifying that the MSFeed will have the required columns and keywords) An exception is thrown if the constructed Table is not a valid MSFeed

Thrown Exceptions

~MSFeed()

As with tables, the destructor writes the table if necessary. Additional checking is done here to verify that all required columns are still present. If it is NOT valid, it will write the table and then throw an exception.

Thrown Exceptions

MSFeed& operator=(const MSFeed&)

Assignment operator, reference semantics

MSFeed referenceCopy(const String& newTableName, const Block<String>& writableColumns) const

Make a special copy of this Table which references all columns from this Table except those mentioned; those are empty and writable. Each forwarded column has the same writable status as the underlying column. The mentioned columns all use the AipsIO storage manager. This function is inherited from MSTable and unlikely to be of use, except in the class MeasurementSet (see comment there)..

static void init()

Initialize the statics appropriately. This does not need to be called by users, it is called by the implementation class MSTableImpl.