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MSHistory.h
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1 //# MSHistory.h: The MeasurementSet HISTORY Table
2 //# Copyright (C) 1996,1999,2000
3 //# Associated Universities, Inc. Washington DC, USA.
4 //#
5 //# This library is free software; you can redistribute it and/or modify it
6 //# under the terms of the GNU Library General Public License as published by
7 //# the Free Software Foundation; either version 2 of the License, or (at your
8 //# option) any later version.
9 //#
10 //# This library is distributed in the hope that it will be useful, but WITHOUT
11 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 //# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
13 //# License for more details.
14 //#
15 //# You should have received a copy of the GNU Library General Public License
16 //# along with this library; if not, write to the Free Software Foundation,
17 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
18 //#
19 //# Correspondence concerning AIPS++ should be addressed as follows:
20 //# Internet email: aips2-request@nrao.edu.
21 //# Postal address: AIPS++ Project Office
22 //# National Radio Astronomy Observatory
23 //# 520 Edgemont Road
24 //# Charlottesville, VA 22903-2475 USA
25 //#
26 //#
27 //# $Id$
28 
29 #ifndef MS_MSHISTORY_H
30 #define MS_MSHISTORY_H
31 
32 #include <casacore/casa/aips.h>
35 
36 namespace casacore { //# NAMESPACE CASACORE - BEGIN
37 
38 // <summary>
39 // A Table intended to hold a MeasurementSet OBSERVATIONLOG table.
40 // </summary>
41 
42 // <use visibility=export>
43 
44 // <reviewed reviewer="Bob Garwood" date="1997/02/01" tests="" demos="">
45 
46 // <prerequisite>
47 // <li> <linkto class="MeasurementSet:description">MeasurementSet</linkto>
48 // <li> <linkto class="MSTable">MSTable</linkto>
49 // </prerequisite>
50 //
51 // <etymology>
52 // MSHistory stands for the MeasurementSet ObservationLog table.
53 // </etymology>
54 //
55 // <synopsis>
56 // An MSHistory is a table intended to hold the OBSERVATIONLOG table for
57 // the MeasurementSet. It has an identical set of member functions as
58 // the main MeasurementSet class, except (currently) for the default
59 // calibration members. For further info and examples see the
60 // MeasurementSet class.
61 // </synopsis>
62 //
63 // <example>
64 // See the MeasurementSet for an example of how to access and use this class.
65 // </example>
66 //
67 // <motivation>
68 // It was found that subtables and the main table of the MeasurementSet have
69 // a lot in common, therefore they derive their interface from the same
70 // base class. Each subtable has its own class to keep the enum definitions
71 // and conversion functions in separate scopes.
72 // </motivation>
73 //
74 // <todo asof="1999/1/14">
75 // see MeasurementSet.
76 // </todo>
77 
79  public MSTable<MSHistoryEnums>
80 {
81 public:
82 
83  // This constructs an empty MSHistory
84  MSHistory ();
85 
86  // These constructors mirror the Table ones with additional checking
87  // on validity (verifying that the MSHistory will have the required columns
88  // and keywords)
89  // An exception is thrown if the constructed Table is not a valid MSHistory
90  // <thrown>
91  // <li> AipsError
92  // </thrown>
93  // <group name=tableLikeConstructors>
95  MSHistory (const String &tableName, const String &tableDescName,
97  MSHistory (SetupNewTable &newTab, rownr_t nrrow = 0, Bool initialize = False);
98  MSHistory (const Table &table);
99  MSHistory (const MSHistory &other);
100  // </group>
101 
102  // As with tables, the destructor writes the table if necessary.
103  // Additional checking is done here to verify that all required
104  // columns are still present.
105  // If it is NOT valid, it will write the table and then throw an exception.
106  // <thrown>
107  // <li> AipsError
108  // </thrown>
109  ~MSHistory();
110 
111  // Assignment operator, reference semantics
112  MSHistory& operator=(const MSHistory&);
113 
114  // Make a special copy of this Table which references all columns from
115  // this Table except those mentioned; those are empty and writable.
116  // Each forwarded column has the same writable status as the underlying
117  // column. The mentioned columns all use the AipsIO storage manager.
118  // This function is inherited from MSTable and unlikely to be of use,
119  // except in the class MeasurementSet (see comment there)..
120  MSHistory referenceCopy(const String& newTableName,
121  const Block<String>& writableColumns) const;
122 
123  // Initialize the statics appropriately. This does not need to be
124  // called by users, it is called by the implementation class
125  // MSTableImpl.
126  static MSTableMaps initMaps();
127 
128 private:
129 
130  // required by the need to throw an exception in the destructor
132 };
133 
134 
135 } //# NAMESPACE CASACORE - END
136 
137 #endif
138 
139 
140 
A Table intended to hold a MeasurementSet OBSERVATIONLOG table.
Definition: MSHistory.h:78
~MSHistory()
As with tables, the destructor writes the table if necessary.
Create a new table - define shapes, data managers, etc.
Definition: SetupNewTab.h:340
Main interface class to a read/write table.
Definition: Table.h:157
Bool hasBeenDestroyed_p
required by the need to throw an exception in the destructor
Definition: MSHistory.h:131
const String & tableName() const
Get the table name.
Definition: Table.h:1187
MSHistory 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...
existing table
Definition: Table.h:174
MSHistory & operator=(const MSHistory &)
Assignment operator, reference semantics.
bool Bool
Define the standard types used by Casacore.
Definition: aipstype.h:42
const Bool False
Definition: aipstype.h:44
MSHistory()
This constructs an empty MSHistory.
simple 1-D array
Definition: Allocator.h:210
uInt64 rownr_t
Define the type of a row number in a table.
Definition: aipsxtype.h:46
A struct holding the maps used in MSTable.
Definition: MSTable.h:51
A Table intended to hold astronomical data.
Definition: MSTable.h:146
Enums for the MeasurementSet HISTORY table.
String: the storage and methods of handling collections of characters.
Definition: String.h:225
static MSTableMaps initMaps()
Initialize the statics appropriately.
TableOption
Define the possible options how a table can be opened.
Definition: Table.h:172