1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
// -*- mode: c++; c-basic-offset:4 -*-
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
// Copyright (c) 2002,2003 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
// (c) COPYRIGHT URI/MIT 1995-1999
// Please read the full copyright statement in the file COPYRIGHT_URI.
//
// Authors:
// jhrg,jimg James Gallagher <jgallagher@gso.uri.edu>
// Interface for the class Structure. A structure contains a single set of
// variables, all at the same lexical level. Of course, a structure may
// contain other structures... The variables contained in a structure are
// stored by instances of this class in a SLList of BaseType pointers.
//
// jhrg 9/14/94
#ifndef _structure_h
#define _structure_h 1
#include <vector>
#include "Constructor.h"
namespace libdap
{
class DDS;
class ConstraintEvaluator;
class D4Group;
/** This data type is used to hold a collection of related data types,
in a manner roughly corresponding to a C structure. The member
types can be simple or compound types, and can include other
Structures.
The DAP2 structure is defined as a singly-linked list. This means
that Structure elements can be accessed either by name, with the
<tt>var()</tt> function, or by their position in the list, either with
the overloaded version of <tt>var()</tt>, or the combination of the
<tt>first_var()</tt> and <tt>next_var()</tt> functions.
The <tt>val2buf()</tt> and <tt>buf2val()</tt> functions only
return the size of
the structure. To read parts of a DAP2 Structure into an
application program, use the <tt>buf2val()</tt> function of the element
of the Structure in question.
Note that the predicate-setting functions <tt>set_send_p()</tt> and
<tt>set_read_p()</tt> set their flags for the Structure as well as for
each of the Structure's member elements.
Similar to C, you can refer to members of Structure elements
with a ``.'' notation. For example, if the Structure has a member
Structure called ``Tom'' and Tom has a member Float32 called
``shoe_size'', then you can refer to Tom's shoe size as
``Tom.shoe_size''.
@brief Holds a structure (aggregate) type.
*/
class Structure: public Constructor
{
private:
protected:
public:
Structure(const string &n);
Structure(const string &n, const string &d);
Structure(const Structure &rhs);
virtual ~Structure();
Structure &operator=(const Structure &rhs);
virtual BaseType *ptr_duplicate();
virtual BaseType *transform_to_dap4(D4Group *root, Constructor *container);
virtual bool is_linear();
virtual void set_leaf_sequence(int level = 1);
virtual void dump(ostream &strm) const ;
};
} // namespace libdap
#endif // _structure_h
|
