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
110
111
112
113
114
115
116
117
118
119
120
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Class Poco::Data::AbstractExtractor</title>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/>
<meta name="language" content="en"/>
<meta name="date" content="2009-11-24"/>
<meta name="generator" content="PocoDoc"/>
<link rel="stylesheet" href="css/styles.css" type="text/css"/>
</head>
<body bgcolor="#ffffff" leftmargin="0" topmargin="0">
<div class="header">
<h1 class="namespace"><a href="Poco.Data.html" class="namespace">Poco::Data</a></h1>
<h1 class="symbol">class AbstractExtractor</h1>
</div>
<div class="body">
<p>
<b>Library:</b> Data<br />
<b>Package:</b> DataCore<br />
<b>Header:</b> Poco/Data/AbstractExtractor.h</p>
<h2>Description</h2>
<div class="description">
<p>Interface used to extract data from a single result row. If an extractor receives null it is not allowed to change val! </p>
</div>
<h2>Inheritance</h2>
<p><b>Known Derived Classes: </b><a href="Poco.Data.MySQL.Extractor.html" title="class Poco::Data::MySQL::Extractor">Poco::Data::MySQL::Extractor</a>, <a href="Poco.Data.ODBC.Extractor.html" title="class Poco::Data::ODBC::Extractor">Poco::Data::ODBC::Extractor</a>, <a href="Poco.Data.SQLite.Extractor.html" title="class Poco::Data::SQLite::Extractor">Poco::Data::SQLite::Extractor</a></p>
<h2>Member Summary</h2>
<p><b>Member Functions: </b><a href="Poco.Data.AbstractExtractor.html#2159" title="Poco::Data::AbstractExtractor::extract()">extract</a></p>
<h2>Constructors</h2>
<h3><a name="2157">AbstractExtractor</a></h3>
<p class="decl"><a href="Poco.Data.AbstractExtractor.html" title="class Poco::Data::AbstractExtractor">AbstractExtractor</a>();</p>
<div class="description">
<p>Creates the <a href="Poco.Data.AbstractExtractor.html" title="class Poco::Data::AbstractExtractor">AbstractExtractor</a>. </p>
</div>
<h2>Destructor</h2>
<h3><a name="2158">~AbstractExtractor</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual ~<a href="Poco.Data.AbstractExtractor.html" title="class Poco::Data::AbstractExtractor">AbstractExtractor</a>();</p>
<div class="description">
<p>Destroys the <a href="Poco.Data.AbstractExtractor.html" title="class Poco::Data::AbstractExtractor">AbstractExtractor</a>. </p>
</div>
<h2>Member Functions</h2>
<h3><a name="2159">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11349" title="Poco::Int8">Poco::Int8</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11349" title="Poco::Int8">Int8</a>. Returns false if null was received. </p>
</div>
<h3><a name="2162">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11350" title="Poco::UInt8">Poco::UInt8</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11350" title="Poco::UInt8">UInt8</a>. Returns false if null was received. </p>
</div>
<h3><a name="2165">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11351" title="Poco::Int16">Poco::Int16</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11351" title="Poco::Int16">Int16</a>. Returns false if null was received. </p>
</div>
<h3><a name="2168">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11352" title="Poco::UInt16">Poco::UInt16</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11352" title="Poco::UInt16">UInt16</a>. Returns false if null was received. </p>
</div>
<h3><a name="2171">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11353" title="Poco::Int32">Poco::Int32</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11353" title="Poco::Int32">Int32</a>. Returns false if null was received. </p>
</div>
<h3><a name="2174">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11354" title="Poco::UInt32">Poco::UInt32</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11354" title="Poco::UInt32">UInt32</a>. Returns false if null was received. </p>
</div>
<h3><a name="2177">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11357" title="Poco::Int64">Poco::Int64</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11357" title="Poco::Int64">Int64</a>. Returns false if null was received. </p>
</div>
<h3><a name="2180">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.html#11358" title="Poco::UInt64">Poco::UInt64</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts an <a href="Poco.html#11358" title="Poco::UInt64">UInt64</a>. Returns false if null was received. </p>
</div>
<h3><a name="2183">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> bool & val<br />) = 0;</p>
<div class="description">
<p>Extracts a boolean. Returns false if null was received. </p>
</div>
<h3><a name="2186">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> float & val<br />) = 0;</p>
<div class="description">
<p>Extracts a float. Returns false if null was received. </p>
</div>
<h3><a name="2189">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> double & val<br />) = 0;</p>
<div class="description">
<p>Extracts a double. Returns false if null was received. </p>
</div>
<h3><a name="2192">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> char & val<br />) = 0;</p>
<div class="description">
<p>Extracts a single character. Returns false if null was received. </p>
</div>
<h3><a name="2195">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> std::string & val<br />) = 0;</p>
<div class="description">
<p>Extracts a string. Returns false if null was received. </p>
</div>
<h3><a name="2198">extract</a> <img src="images/virtual.gif" alt="virtual" title="virtual" style="vertical-align:baseline;" border="0" /> </h3>
<p class="decl">virtual bool extract(<br /> std::size_t pos,<br /> <a href="Poco.Data.BLOB.html" title="class Poco::Data::BLOB">BLOB</a> & val<br />) = 0;</p>
<div class="description">
<p>Extracts a <a href="Poco.Data.BLOB.html" title="class Poco::Data::BLOB">BLOB</a>. Returns false if null was received. </p>
</div>
<p class="footer">POCO C++ Libraries 1.3.6-all<br />
Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p>
</div>
</body>
</html>
|
