mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-16 09:06:25 +00:00
78 lines
3.7 KiB
HTML
78 lines
3.7 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||
<!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>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||
<title>Dbstl typical use cases</title>
|
||
<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
||
<link rel="start" href="index.html" title="Berkeley DB Programmer's Reference Guide" />
|
||
<link rel="up" href="stl.html" title="Chapter 7. Standard Template Library API" />
|
||
<link rel="prev" href="stl.html" title="Chapter 7. Standard Template Library API" />
|
||
<link rel="next" href="stl_examples.html" title="Dbstl examples" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.3</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">Dbstl typical use cases</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="stl.html">Prev</a> </td>
|
||
<th width="60%" align="center">Chapter 7. Standard Template Library API</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="stl_examples.html">Next</a></td>
|
||
</tr>
|
||
</table>
|
||
<hr />
|
||
</div>
|
||
<div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="stl_usecase"></a>Dbstl typical use cases</h2></div></div></div>
|
||
Among others, the following are some typical use cases where dbstl would
|
||
be prefered over C++ STL:
|
||
|
||
<div class="itemizedlist"><ul type="disc"><li><p>
|
||
Working with a large amount of data, more than can reside in memory.
|
||
Using C++ STL would force a number of page swaps, which will degrade
|
||
performance. When using dbstl, data is stored in a database and Berkeley
|
||
DB ensures the needed data is in memory, so that the overall performance
|
||
of the machine is not slowed down.
|
||
</p></li><li><p>
|
||
Familiar Interface. dbstl provides a familiar interface to Berkeley DB,
|
||
hiding the marshalling and unmashalling details and automatically
|
||
managing Berkeley DB structures and objects.
|
||
</p></li><li><p>
|
||
Transaction semantics. dbstl provides the ACID properties (or a subset of
|
||
the ACID properties) in addition to supporting all of the STL
|
||
functionality.
|
||
</p></li><li><p>
|
||
Concurrent access. Few (if any) existing C++ STL implementations support
|
||
reading/writing to the same container concurrently, dbstl does.
|
||
</p></li><li><p>
|
||
Object persistence. dbstl allows your application to store objects in a
|
||
database, and use the objects across different runs of your application.
|
||
dbstl is capable of storing complicated objects which are not located in
|
||
a contiguous chunk of memory, with some user configurations.
|
||
</p></li></ul></div></div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="stl.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="stl.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="stl_examples.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">Chapter 7. Standard Template Library API </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> Dbstl examples</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|