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79 lines
3.7 KiB
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<title>Dbstl typical use cases</title>
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<p>Library Version 11.2.5.2</p>
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<th colspan="3" align="center">Dbstl typical use cases</th>
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<td width="20%" align="left"><a accesskey="p" href="stl.html">Prev</a> </td>
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<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>
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Among others, the following are some typical use cases where dbstl would
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be prefered over C++ STL:
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<div class="itemizedlist"><ul type="disc"><li><p>
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Working with a large amount of data, more than can reside in memory.
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Using C++ STL would force a number of page swaps, which will degrade
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performance. When using dbstl, data is stored in a database and Berkeley
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DB ensures the needed data is in memory, so that the overall performance
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of the machine is not slowed down.
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</p></li><li><p>
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Familiar Interface. dbstl provides a familiar interface to Berkeley DB,
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hiding the marshalling and unmashalling details and automatically
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managing Berkeley DB structures and objects.
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</p></li><li><p>
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Transaction semantics. dbstl provides the ACID properties (or a subset of
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the ACID properties) in addition to supporting all of the STL
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functionality.
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</p></li><li><p>
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Concurrent access. Few (if any) existing C++ STL implementations support
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reading/writing to the same container concurrently, dbstl does.
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</p></li><li><p>
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Object persistence. dbstl allows your application to store objects in a
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database, and use the objects across different runs of your application.
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dbstl is capable of storing complicated objects which are not located in
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a contiguous chunk of memory, with some user configurations.
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</p></li></ul></div></div>
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<a accesskey="u" href="stl.html">Up</a>
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<td width="40%" align="right"> <a accesskey="n" href="stl_examples.html">Next</a></td>
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<tr>
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<td width="40%" align="left" valign="top">Chapter 7. Standard Template Library API </td>
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<a accesskey="h" href="index.html">Home</a>
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