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119 lines
4.9 KiB
HTML
119 lines
4.9 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>Android Configuration Options</title>
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<link rel="stylesheet" href="gettingStarted.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 Installation and Build Guide" />
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<link rel="up" href="build_android_intro.html" title="Chapter 4. Building Berkeley DB for Android" />
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<link rel="prev" href="build_android_jdbc.html" title="Building the Android JDBC Driver" />
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<link rel="next" href="build_win.html" title="Chapter 5. Building Berkeley DB for Windows" />
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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 11.2.5.3</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">Android Configuration Options</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="build_android_jdbc.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 4. Building Berkeley DB for Android</th>
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<td width="20%" align="right"> <a accesskey="n" href="build_win.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="sect1" 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" style="clear: both"><a id="build_android_config"></a>Android Configuration Options</h2>
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</div>
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</div>
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</div>
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<p>There are several configuration options you can specify in <code class="literal">LOCAL_CFLAGS</code> located in the <code class="literal">Android.mk</code> file. </p>
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<div class="itemizedlist">
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<ul type="disc">
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<li>
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<p>
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BDBSQL_CONVERT_SQLITE
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</p>
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<p>
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This option enables to convert SQLite database to BDB SQL database format. See <a class="xref" href="build_android_intro.html#build_android_migrate" title="Migrating from SQLite to Berkeley DB">Migrating from SQLite to Berkeley DB</a>
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for more information.
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</p>
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</li>
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<li>
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<p>
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BDBSQL_SHARE_PRIVATE
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</p>
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<p>
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This flag is enabled by default and keeps all the region files in
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memory instead of the disk.
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This flag also implements database-level locking.
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</p>
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</li>
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<li>
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<p>
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SQLITE_DEFAULT_CACHE_SIZE
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</p>
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<p>
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SQLite provides an in-memory cache which you size according to the maximum number of
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database pages that you want to hold in memory at any given time.
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See <a class="xref" href="build_unix_sql.html#config_sql" title="Changing Compile Options">Changing Compile Options</a>.
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</p>
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</li>
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<li>
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<p>
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SQLITE_DEFAULT_JOURNAL_SIZE_LIMIT
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</p>
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<p>
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For SQLite, this pragma identifies the maximum size that the journal file is allowed
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to be. Berkeley DB does not have a journal file, but it writes and uses log files. A new log file is
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created when the current log file has reached the defined maximum size.
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This flag defines this maximum size for a log file. Default value is 10 MB for Berkeley DB SQL interface.
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</p>
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</li>
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</ul>
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</div>
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<p>
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Hard-coded numbers in the build can be adjusted using the following SQLite PRAGMA commands: </p>
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<div class="itemizedlist">
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<ul type="disc">
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<li>PRAGMA cache_size</li>
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<li>PRAGMA journal_size_limit</li>
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</ul>
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</div>
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<p>
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You can configure most aspects of your Berkeley DB environment by using the <a href="../api_reference/C/configuration_reference.html" class="olink">DB_CONFIG</a> file.
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</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="build_android_jdbc.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="build_android_intro.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="build_win.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">Building the Android JDBC Driver </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 5.
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Building Berkeley DB for Windows
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</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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