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193 lines
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193 lines
6.6 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>DbHeapRecordId</title>
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<link rel="stylesheet" href="apiReference.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 C++ API Reference" />
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<link rel="up" href="db.html" title="Chapter 2. The Db Handle" />
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<link rel="prev" href="dbverify.html" title="Db::verify()" />
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<link rel="next" href="dbc.html" title="Chapter 3. The Dbc Handle" />
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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 11.2.5.2</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">DbHeapRecordId</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="dbverify.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 2.
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The Db Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="dbc.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="db_heap_rid"></a>DbHeapRecordId</h2>
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</div>
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</div>
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</div>
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<pre class="programlisting">#include <db_cxx.h>
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class _exported DbHeapRecordId : private DB_HEAP_RID
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{
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public:
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db_pgno_t get_pgno() const { return pgno; }
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void set_pgno(db_pgno_t value) { pgno = value; }
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db_indx_t get_indx() const { return indx; }
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void set_indx(db_indx_t value) { indx = value; }
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DB_HEAP_RID *get_DB_HEAP_RID() { return (DB_HEAP_RID *)this; }
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const DB_HEAP_RID *get_const_DB_HEAP_RID() const
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{ return (const DB_HEAP_RID *)this; }
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static DbHeapRecordId* get_DbHeapRecordId(DB_HEAP_RID *rid)
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{ return (DbHeapRecordId *)rid; }
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static const DbHeapRecordId* get_const_DbHeapRecordId(DB_HEAP_RID *rid)
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{ return (const DbHeapRecordId *)rid; }
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DbHeapRecordId(db_pgno_t pgno, db_indx_t indx);
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DbHeapRecordId();
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~DbHeapRecordId();
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DbHeapRecordId(const DbHeapRecordId &);
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DbHeapRecordId &operator = (const DbHeapRecordId &);
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};</pre>
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<p>
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Content used for the key in a Heap database record. Berkeley DB
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<span>instantiates an object of this class</span>
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for you when you create a record in a Heap database. You should
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never
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<span>instantiate an object of this class or modify the contents of this class</span>
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yourself; Berkeley DB must create and manage it for you.
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</p>
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<p>
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This
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<span>object</span>
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is returned in the <span class="bold"><strong>key</strong></span>
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Dbt parameter of the method that you use to add a record to the
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Heap database.
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</p>
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<div class="sect2" 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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<h3 class="title"><a id="id3602830"></a>Class Methods</h3>
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</div>
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</div>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3602619"></a>get_pgno()</h4>
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</div>
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</div>
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</div>
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<p>
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Returns the database page number where the record is stored.
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</p>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3603514"></a>get_indx()</h4>
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</div>
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</div>
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</div>
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<p>
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Returns the index in the offset table where the record can be found.
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</p>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3603521"></a>get_DB_HEAP_RID()</h4>
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</div>
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</div>
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</div>
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<p>
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Returns a pointer to the underlying C-language structure
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used to store the database page number and offset table
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index information.
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</p>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3603530"></a>set_pgno()</h4>
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</div>
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</div>
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</div>
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<p>
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For internal use only. Changing the offset index has
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unpredictable results.
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</p>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3603537"></a>set_indx()</h4>
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</div>
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</div>
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</div>
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<p>
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For internal use only. Changing the offset index has
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unpredictable results.
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</p>
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</div>
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</div>
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<div class="sect2" 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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<h3 class="title"><a id="id3603447"></a>See Also</h3>
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</div>
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</div>
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</div>
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<p>
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<a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a>,
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</p>
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</div>
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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="dbverify.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="db.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="dbc.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">Db::verify() </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 3.
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The Dbc Handle
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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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