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>Secondary Database Properties</title> 7 <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Getting Started with Berkeley DB" /> 10 <link rel="up" href="indexes.html" title="Chapter��10.��Secondary Databases" /> 11 <link rel="prev" href="keyCreator.html" title="Implementing Key Creators" /> 12 <link rel="next" href="readSecondary.html" title="Reading Secondary Databases" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Secondary Database Properties</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="keyCreator.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��10.��Secondary Databases</th> 23 <td width="20%" align="right">��<a accesskey="n" href="readSecondary.html">Next</a></td> 24 </tr> 25 </table> 26 <hr /> 27 </div> 28 <div class="sect1" lang="en" xml:lang="en"> 29 <div class="titlepage"> 30 <div> 31 <div> 32 <h2 class="title" style="clear: both"><a id="secondaryProps"></a>Secondary Database Properties</h2> 33 </div> 34 </div> 35 </div> 36 <p>Secondary databases accept <code class="classname">SecondaryConfig</code> 37 objects. <code class="classname">SecondaryConfig</code> is a subclass of <code class="classname">DatabaseConfig</code>, 38 so it can manage all of the same properties as does <code class="classname">DatabaseConfig</code>. 39 See <a class="xref" href="DBConfig.html" title="Database Properties">Database Properties</a> for more information.</p> 40 <p>In addition to the <code class="classname">DatabaseConfig</code> properties, 41 <code class="classname">SecondaryConfig</code> also allows you to manage the following properties: 42 </p> 43 <div class="itemizedlist"> 44 <ul type="disc"> 45 <li> 46 <p> 47 <code class="methodname">SecondaryConfig.setAllowPopulate()</code> 48 </p> 49 <p>If true, the secondary database can be auto-populated. This means 50 that on open, if the secondary database is empty then the primary 51 database is read in its entirety and additions/modifications to the 52 secondary's records occur automatically.</p> 53 </li> 54 <li> 55 <p> 56 <code class="methodname">SecondaryConfig.setKeyCreator()</code> 57 </p> 58 <p>Identifies the key creator object to be used for secondary key 59 creation. See <a class="xref" href="keyCreator.html" title="Implementing Key Creators">Implementing Key 60 <span>Creators</span> 61 62 </a> 63 for more information.</p> 64 </li> 65 </ul> 66 </div> 67 </div> 68 <div class="navfooter"> 69 <hr /> 70 <table width="100%" summary="Navigation footer"> 71 <tr> 72 <td width="40%" align="left"><a accesskey="p" href="keyCreator.html">Prev</a>��</td> 73 <td width="20%" align="center"> 74 <a accesskey="u" href="indexes.html">Up</a> 75 </td> 76 <td width="40%" align="right">��<a accesskey="n" href="readSecondary.html">Next</a></td> 77 </tr> 78 <tr> 79 <td width="40%" align="left" valign="top">Implementing Key 80 <span>Creators</span> 81 82 ��</td> 83 <td width="20%" align="center"> 84 <a accesskey="h" href="index.html">Home</a> 85 </td> 86 <td width="40%" align="right" valign="top">��Reading Secondary Databases</td> 87 </tr> 88 </table> 89 </div> 90 </body> 91</html> 92