MSDataDescription.h
Classes
- MSDataDescription -- A Table intended to hold a MeasurementSet DATADESCRIPTION table. (full description)
class MSDataDescription:public MSDataDescriptionEnums, public MSTable<MSDataDescriptionEnums::PredefinedColumns, MSDataDescriptionEnums::PredefinedKeywords>
Interface
- Public Members
- MSDataDescription ()
- MSDataDescription (const String &tableName, TableOption = Table::Old)
- MSDataDescription (const String &tableName, const String &tableDescName, TableOption = Table::Old)
- MSDataDescription (SetupNewTable &newTab, uInt nrrow = 0, Bool initialize = False)
- MSDataDescription (const Table &table)
- MSDataDescription (const MSDataDescription &other)
- ~MSDataDescription()
- MSDataDescription& operator=(const MSDataDescription&)
- MSDataDescription referenceCopy(const String& newTableName, const Block<String>& writableColumns) const
- static void init()
Review Status
- Reviewed By:
- Bob Garwood
- Date Reviewed:
- 1997/02/01
Prerequisite
Etymology
MSDataDescription stands for the MeasurementSet Datadescription table.
Synopsis
An MSDataDescription is a table intended to hold the DATADESCRIPTION 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
This constructs an empty MSDataDescription
These constructors mirror the Table ones with additional checking
on validity (verifying that the MSDataDescription will have the required columns
and keywords).
An exception is thrown if the constructed Table is not a valid MSDataDescription
Thrown Exceptions
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
MSDataDescription& operator=(const MSDataDescription&)
Assignment operator, reference semantics
MSDataDescription 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.