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146 lines
5.8 KiB
HTML
146 lines
5.8 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Chapter 2. Dbstl Container Classes</title>
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<link rel="stylesheet" href="apiReference.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
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<link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
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<link rel="prev" href="stldbstl_global_functionsclose_db_cursors.html" title="close_db_cursors" />
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<link rel="next" href="db_container.html" title="Chapter 3. Db_container" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 11.2.5.2</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Chapter 2.
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Dbstl Container Classes </th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td>
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<th width="60%" align="center"> </th>
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<td width="20%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="chapter" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title"><a id="dbstl_containers"></a>Chapter 2.
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Dbstl Container Classes </h2>
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</div>
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</div>
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</div>
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<p>A dbstl container is very much like a C++ STL container. </p>
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<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>
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and <a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a>
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; </p>
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<h4><a id="id2714743"></a>
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See Also
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</h4>
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<p> </p>
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<p><a class="link" href="stldbstl_global_functionsopen_db.html" title="open_db">dbstl::open_db()</a>
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<a class="link" href="stldbstl_global_functionsopen_env.html" title="open_env">dbstl::open_env()</a>
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<a class="link" href="db_vector.html" title="Chapter 4. Db_vector">db_vector</a>
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<a class="link" href="db_map.html" title="Chapter 5. Db_map">db_map</a>
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<a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap">db_multimap</a>
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<a class="link" href="db_set.html" title="Chapter 7. Db_set">db_set</a>
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<a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset">db_multiset</a>
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</p>
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<h4><a id="id3591796"></a> Public Members </h4>
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<div class="informaltable">
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<table border="1" width="80%">
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<colgroup>
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<col />
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<col />
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</colgroup>
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<thead>
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<tr>
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<th>Member</th>
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<th>Description</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>
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<a class="link" href="db_container.html" title="Chapter 3. Db_container">
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db_container</a>
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</td>
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<td>
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db_container</td>
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</tr>
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<tr>
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<td>
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<a class="link" href="db_map.html" title="Chapter 5. Db_map">
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db_map</a>
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</td>
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<td>
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db_map</td>
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</tr>
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<tr>
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<td>
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<a class="link" href="db_multimap.html" title="Chapter 6. Db_multimap">
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db_multimap</a>
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</td>
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<td>
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db_multimap</td>
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</tr>
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<tr>
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<td>
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<a class="link" href="db_set.html" title="Chapter 7. Db_set">
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db_set</a>
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</td>
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<td>
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db_set</td>
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</tr>
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<tr>
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<td>
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<a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset">
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db_multiset</a>
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</td>
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<td>
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db_multiset</td>
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</tr>
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<tr>
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<td>
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<a class="link" href="db_vector.html" title="Chapter 4. Db_vector">
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db_vector</a>
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</td>
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<td>
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db_vector</td>
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</tr>
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</tbody>
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</table>
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</div>
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<h4><a id="id3594425"></a>
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Group</h4>
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<p>
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None</p>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_db_cursors.html">Prev</a> </td>
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<td width="20%" align="center"> </td>
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<td width="40%" align="right"> <a accesskey="n" href="db_container.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">close_db_cursors </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> Chapter 3.
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Db_container </td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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