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>Db::get_priority()</title> 7 <link rel="stylesheet" href="apiReference.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Berkeley DB C++ API Reference" /> 10 <link rel="up" href="db.html" title="Chapter 2. The Db Handle" /> 11 <link rel="prev" href="dbget_pagesize.html" title="Db::get_pagesize()" /> 12 <link rel="next" href="dbget_q_extentsize.html" title="Db::get_q_extentsize()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Db::get_priority()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="dbget_pagesize.html">Prev</a> </td> 22 <th width="60%" align="center">Chapter 2. 23 The Db Handle 24 </th> 25 <td width="20%" align="right"> <a accesskey="n" href="dbget_q_extentsize.html">Next</a></td> 26 </tr> 27 </table> 28 <hr /> 29 </div> 30 <div class="sect1" lang="en" xml:lang="en"> 31 <div class="titlepage"> 32 <div> 33 <div> 34 <h2 class="title" style="clear: both"><a id="dbget_priority"></a>Db::get_priority()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db_cxx.h> 39 40int 41Db::get_priority(DB_CACHE_PRIORITY *priorityp);</pre> 42 <p> 43 The <code class="methodname">Db::get_priority()</code> method returns the cache priority for pages 44 referenced by the <a class="link" href="db.html" title="Chapter 2. The Db Handle">Db</a> 45 handle. This priority value is set using the 46 <a class="xref" href="dbset_priority.html" title="Db::set_priority()">Db::set_priority()</a> 47 method. 48 </p> 49 <p> 50 The <code class="methodname">Db::get_priority()</code> method may be called only after the database has been opened. 51 </p> 52 <p> 53 The <code class="methodname">Db::get_priority()</code> <span> 54 55 <span> 56 method either returns a non-zero error value or throws an 57 exception that encapsulates a non-zero error value on 58 failure, and returns 0 on success. 59 </span> 60 </span> 61 </p> 62 <div class="sect2" lang="en" xml:lang="en"> 63 <div class="titlepage"> 64 <div> 65 <div> 66 <h3 class="title"><a id="id1637622"></a>Parameters</h3> 67 </div> 68 </div> 69 </div> 70 <div class="sect3" lang="en" xml:lang="en"> 71 <div class="titlepage"> 72 <div> 73 <div> 74 <h4 class="title"><a id="id1637717"></a>priorityp</h4> 75 </div> 76 </div> 77 </div> 78 <p> 79 The <code class="methodname">Db::get_priority()</code> 80 method returns a reference to the cache priority 81 in <span class="bold"><strong>priorityp</strong></span>. 82 See <a class="xref" href="dbset_priority.html" title="Db::set_priority()">Db::set_priority()</a> 83 for a list of possible priorities. 84 </p> 85 </div> 86 </div> 87 <div class="sect2" lang="en" xml:lang="en"> 88 <div class="titlepage"> 89 <div> 90 <div> 91 <h3 class="title"><a id="id1637828"></a>Class</h3> 92 </div> 93 </div> 94 </div> 95 <p> 96 <a class="link" href="db.html" title="Chapter 2. The Db Handle">Db</a> 97 </p> 98 </div> 99 <div class="sect2" lang="en" xml:lang="en"> 100 <div class="titlepage"> 101 <div> 102 <div> 103 <h3 class="title"><a id="id1637933"></a>See Also</h3> 104 </div> 105 </div> 106 </div> 107 <p> 108 <a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a>, 109 <a class="xref" href="dbset_priority.html" title="Db::set_priority()">Db::set_priority()</a> 110 </p> 111 </div> 112 </div> 113 <div class="navfooter"> 114 <hr /> 115 <table width="100%" summary="Navigation footer"> 116 <tr> 117 <td width="40%" align="left"><a accesskey="p" href="dbget_pagesize.html">Prev</a> </td> 118 <td width="20%" align="center"> 119 <a accesskey="u" href="db.html">Up</a> 120 </td> 121 <td width="40%" align="right"> <a accesskey="n" href="dbget_q_extentsize.html">Next</a></td> 122 </tr> 123 <tr> 124 <td width="40%" align="left" valign="top">Db::get_pagesize() </td> 125 <td width="20%" align="center"> 126 <a accesskey="h" href="index.html">Home</a> 127 </td> 128 <td width="40%" align="right" valign="top"> Db::get_q_extentsize()</td> 129 </tr> 130 </table> 131 </div> 132 </body> 133</html> 134