1<?xml version="1.0" encoding="UTF-8" standalone="no"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 6 <title>Chapter 2. Dbstl Container Classes</title> 7 <link rel="stylesheet" href="apiReference.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> 10 <link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" /> 11 <link rel="prev" href="stldbstl_global_functionsclose_db_cursors.html" title="close_db_cursors" /> 12 <link rel="next" href="db_container.html" title="Chapter 3. Db_container" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Chapter 2. 19 Dbstl Container Classes </th> 20 </tr> 21 <tr> 22 <td width="20%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td> 23 <th width="60%" align="center"> </th> 24 <td width="20%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td> 25 </tr> 26 </table> 27 <hr /> 28 </div> 29 <div class="chapter" lang="en" xml:lang="en"> 30 <div class="titlepage"> 31 <div> 32 <div> 33 <h2 class="title"><a id="dbstl_containers"></a>Chapter 2. 34 Dbstl Container Classes </h2> 35 </div> 36 </div> 37 </div> 38 <p>A dbstl container is very much like a C++ STL container. </p> 39 <p>It stores a collection of data items, or key/data pairs. Each container is backed by a Berkeley DB database created in an explicit database environment or an internal private environment; And the database itself can be created explicitly with all kinds of configurations, or by dbstl internally. For each type of container, some specific type of database and/or configurations must be used or specified to the database and its environment. dbstl will check the database and environment conform to the requirement. When users don't have a chance to specify a container's backing database and environment, like in copy constructors, dbstl will create proper databases and/or environment for it. There are two helper functions to make it easier to create/open an environment or database, they are <a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a> 40 and <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a> 41; </p> 42 <h4><a id="id1541063"></a> 43See Also 44</h4> 45 <p> </p> 46 <p><a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a> 47 <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a> 48 <a class="link" href="db_vector.html" title="Chapter 4. Db_vector">db_vector</a> 49 <a class="link" href="db_map.html" title="Chapter 5. Db_map">db_map</a> 50 <a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap">db_multimap</a> 51 <a class="link" href="db_set.html" title="Chapter 7. Db_set">db_set</a> 52 <a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset">db_multiset</a> 53 </p> 54 <h4><a id="id1543847"></a> Public Members </h4> 55 <div class="informaltable"> 56 <table border="1" width="80%"> 57 <colgroup> 58 <col /> 59 <col /> 60 </colgroup> 61 <thead> 62 <tr> 63 <th>Member</th> 64 <th>Description</th> 65 </tr> 66 </thead> 67 <tbody> 68 <tr> 69 <td> 70<a class="link" href="db_container.html" title="Chapter 3. Db_container"> 71db_container</a> 72</td> 73 <td> 74db_container</td> 75 </tr> 76 <tr> 77 <td> 78<a class="link" href="db_map.html" title="Chapter 5. Db_map"> 79db_map</a> 80</td> 81 <td> 82db_map</td> 83 </tr> 84 <tr> 85 <td> 86<a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap"> 87db_multimap</a> 88</td> 89 <td> 90db_multimap</td> 91 </tr> 92 <tr> 93 <td> 94<a class="link" href="db_set.html" title="Chapter 7. Db_set"> 95db_set</a> 96</td> 97 <td> 98db_set</td> 99 </tr> 100 <tr> 101 <td> 102<a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset"> 103db_multiset</a> 104</td> 105 <td> 106db_multiset</td> 107 </tr> 108 <tr> 109 <td> 110<a class="link" href="db_vector.html" title="Chapter 4. Db_vector"> 111db_vector</a> 112</td> 113 <td> 114db_vector</td> 115 </tr> 116 </tbody> 117 </table> 118 </div> 119 <h4><a id="id1543838"></a> 120Group</h4> 121 <p> 122None</p> 123 </div> 124 <div class="navfooter"> 125 <hr /> 126 <table width="100%" summary="Navigation footer"> 127 <tr> 128 <td width="40%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td> 129 <td width="20%" align="center"> </td> 130 <td width="40%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td> 131 </tr> 132 <tr> 133 <td width="40%" align="left" valign="top"> 134close_db_cursors 135 </td> 136 <td width="20%" align="center"> 137 <a accesskey="h" href="index.html">Home</a> 138 </td> 139 <td width="40%" align="right" valign="top"> Chapter 3. 140 Db_container </td> 141 </tr> 142 </table> 143 </div> 144 </body> 145</html> 146