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diff --git a/bdb/docs/ref/upgrade.3.2/callback.html b/bdb/docs/ref/upgrade.3.2/callback.html new file mode 100644 index 00000000000..f60a81d5c56 --- /dev/null +++ b/bdb/docs/ref/upgrade.3.2/callback.html @@ -0,0 +1,39 @@ +<!--$Id: callback.so,v 1.5 2000/10/26 15:20:40 bostic Exp $--> +<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.--> +<!--All rights reserved.--> +<html> +<head> +<title>Berkeley DB Reference Guide: Release 3.2: DB callback functions, app_private field</title> +<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> +<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++"> +</head> +<body bgcolor=white> +<table><tr valign=top> +<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></h3></td> +<td width="1%"><a href="../../ref/upgrade.3.2/set_flags.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.2/renumber.html"><img src="../../images/next.gif" alt="Next"></a> +</td></tr></table> +<p> +<h1 align=center>Release 3.2: DB callback functions, app_private field</h1> +<p>In the Berkeley DB 3.2 release, four application callback functions (the +callback functions set by <a href="../../api_c/db_set_bt_compare.html">DB->set_bt_compare</a>, +<a href="../../api_c/db_set_bt_prefix.html">DB->set_bt_prefix</a>, <a href="../../api_c/db_set_dup_compare.html">DB->set_dup_compare</a> and +<a href="../../api_c/db_set_h_hash.html">DB->set_h_hash</a>) were modified to take a reference to a +DB object as their first argument. This change allows the Berkeley DB +Java API to reasonably support these interfaces. There is currently no +need for the callback functions to do anything with this additional +argument. +<p>C and C++ applications that specify their own Btree key comparison, +Btree prefix comparison, duplicate data item comparison or Hash +functions should modify these functions to take a reference to a +DB structure as their first argument. No further change is +required. +<p>The app_private field of the <a href="../../api_c/dbt.html">DBT</a> structure (accessible only from +the Berkeley DB C API) has been removed in the 3.2 release. It was replaced +with app_private fields in the DB_ENV and DB handles. +Applications using this field will have to convert to using one of the +replacement fields. +<table><tr><td><br></td><td width="1%"><a href="../../ref/upgrade.3.2/set_flags.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../ref/toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.2/renumber.html"><img src="../../images/next.gif" alt="Next"></a> +</td></tr></table> +<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> +</body> +</html> |