Main Page   Modules   Namespace List   Class Hierarchy   Alphabetical List   Compound List   Compound Members   Related Pages  

CCfits::Table::NoSuchColumn Class Reference

Exception to be thrown on a failure to retrieve a column specified either by name or index number. More...

#include <Table.h>

Inheritance diagram for CCfits::Table::NoSuchColumn::

Inheritance diagram
CCfits::FitsException List of all members.

Public Methods

 NoSuchColumn (const string &name, bool silent=true)
 NoSuchColumn (int index, bool silent=true)

Detailed Description

Exception to be thrown on a failure to retrieve a column specified either by name or index number.

When a Table object is created, the header is read and a column object created for each column defined. Thus id this exception is thrown the column requested does not exist in the HDU (note that the column can easily exist and not contain any data since the user controls whether the column will be read when the FITS object is instantiated).

It is expected that the index number calls will be primarily internal. The underlying implementation makes lookup by name more efficient.

The exception has two variants, which take either an integer or a string as parameter. These are used according to the accessor that threw them, either by name or index.


Constructor & Destructor Documentation

CCfits::Table::NoSuchColumn::NoSuchColumn ( const string & name,
bool silent = true )
 

Exception ctor for exception thrown if the requested column (specified by name) is not present.

Message: Fits Error: cannot find Column named: name is printed.

Parameters:
name   the requested column name
silent   if true, print message whether FITS::verboseMode is set or not.

CCfits::Table::NoSuchColumn::NoSuchColumn ( int index,
bool silent = true )
 

Exception ctor for exception thrown if the requested column (specified by name) is not present.

Message: Fits Error: column not present - Column number index is printed.

Parameters:
index   the requested column number
silent   if true, print message whether FITS::verboseMode is set or not.


The documentation for this class was generated from the following files:
Generated at Fri Apr 11 16:05:12 2003 for CCfits by doxygen1.2.7 written by Dimitri van Heesch, © 1997-2001