casacore
Public Types | Public Member Functions | Private Attributes | List of all members
casacore::StorageOption Class Reference

Options defining how table files are organized. More...

#include <StorageOption.h>

Public Types

enum  Option {
  MultiFile,
  MultiHDF5,
  SepFile,
  Default,
  Aipsrc
}
 Define the possible options how table files are organized. More...
 

Public Member Functions

 StorageOption (Option option=Aipsrc, Int blockSize=-2)
 Create an option object. More...
 
void fillOption ()
 Fill the option in case Aipsrc or Default was given. More...
 
Option option () const
 Get the option. More...
 
void setOption (Option option)
 Set the option. More...
 
uInt blockSize () const
 Get the block size. More...
 
void setBlockSize (Int blockSize)
 Set the block size. More...
 

Private Attributes

Option itsOption
 
Int itsBlockSize
 

Detailed Description

Options defining how table files are organized.

Intended use:

Public interface

Review Status

Reviewed By:
TPPR
Date Reviewed:
08.11.94
Test programs:
tTable

Synopsis

This class can be used to define how the files of a table are organized. There are two ways:

  1. The old way where each storage manager has its own file(s).
  2. Using MultiFile that storage managers can use to combine about all table files in a single file. This mode is particularly useful for new file systems (like Lustre) requiring large block sizes.
    The block size to be used in a MultiFile can be defined in this class. Default is 4 MByte.
  3. Using MultiHDF5 which behaves similar to MultiFile but uses an HDF5 file instead of a regular file.

It is possible to specify the storage type and block size using aipsrc. The aipsrc variables are:

Definition at line 71 of file StorageOption.h.

Member Enumeration Documentation

◆ Option

Define the possible options how table files are organized.

Enumerator
MultiFile 

Let storage managers use a combined MultiFile.

MultiHDF5 

Let storage managers use a combined MultiHDF5.

SepFile 

Let storage managers use separate files.

Default 

Use default (currently MultiFile).

Aipsrc 

Use as defined in the aipsrc file.

Definition at line 75 of file StorageOption.h.

Constructor & Destructor Documentation

◆ StorageOption()

casacore::StorageOption::StorageOption ( Option  option = Aipsrc,
Int  blockSize = -2 
)

Create an option object.

The parameter values are described in the synopsis. A size value -2 means reading that size from the aipsrc file.

Member Function Documentation

◆ blockSize()

uInt casacore::StorageOption::blockSize ( ) const
inline

Get the block size.

Definition at line 106 of file StorageOption.h.

References itsBlockSize.

Referenced by setBlockSize().

◆ fillOption()

void casacore::StorageOption::fillOption ( )

Fill the option in case Aipsrc or Default was given.

It is done as explained in the synopsis.

◆ option()

Option casacore::StorageOption::option ( ) const
inline

Get the option.

Definition at line 98 of file StorageOption.h.

References itsOption.

Referenced by setOption().

◆ setBlockSize()

void casacore::StorageOption::setBlockSize ( Int  blockSize)
inline

Set the block size.

Definition at line 110 of file StorageOption.h.

References blockSize(), and itsBlockSize.

◆ setOption()

void casacore::StorageOption::setOption ( Option  option)
inline

Set the option.

Definition at line 102 of file StorageOption.h.

References itsOption, and option().

Member Data Documentation

◆ itsBlockSize

Int casacore::StorageOption::itsBlockSize
private

Definition at line 115 of file StorageOption.h.

Referenced by blockSize(), and setBlockSize().

◆ itsOption

Option casacore::StorageOption::itsOption
private

Definition at line 114 of file StorageOption.h.

Referenced by option(), and setOption().


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