1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<!--NewPage--> 3<HTML> 4<HEAD> 5<!-- Generated by javadoc (build 1.5.0) on Thu May 15 17:17:30 EDT 2008 --> 6<TITLE> 7BtreePrefixCalculator (Oracle - Berkeley DB Java API) 8</TITLE> 9 10<META NAME="keywords" CONTENT="com.sleepycat.db.BtreePrefixCalculator interface"> 11 12<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../style.css" TITLE="Style"> 13 14<SCRIPT type="text/javascript"> 15function windowTitle() 16{ 17 parent.document.title="BtreePrefixCalculator (Oracle - Berkeley DB Java API)"; 18} 19</SCRIPT> 20<NOSCRIPT> 21</NOSCRIPT> 22 23</HEAD> 24 25<BODY BGCOLOR="white" onload="windowTitle();"> 26 27 28<!-- ========= START OF TOP NAVBAR ======= --> 29<A NAME="navbar_top"><!-- --></A> 30<A HREF="#skip-navbar_top" title="Skip navigation links"></A> 31<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 32<TR> 33<TD COLSPAN=2 BGCOLOR="#EEEEFF" 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Classes</B></A>'); 64 } 65 //--> 66</SCRIPT> 67<NOSCRIPT> 68 <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> 69</NOSCRIPT> 70 71 72</FONT></TD> 73</TR> 74<TR> 75<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 76 SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> 77<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 78DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> 79</TR> 80</TABLE> 81<A NAME="skip-navbar_top"></A> 82<!-- ========= END OF TOP NAVBAR ========= --> 83 84<HR> 85<!-- ======== START OF CLASS DATA ======== --> 86<H2> 87<FONT SIZE="-1"> 88com.sleepycat.db</FONT> 89<BR> 90Interface BtreePrefixCalculator</H2> 91<HR> 92<DL> 93<DT><PRE>public interface <B>BtreePrefixCalculator</B></DL> 94</PRE> 95 96<P> 97An interface specifying how Btree prefixes should be calculated. 98<P> 99 100<P> 101<HR> 102 103<P> 104 105<!-- ========== METHOD SUMMARY =========== --> 106 107<A NAME="method_summary"><!-- --></A> 108<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 109<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 110<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 111<B>Method Summary</B></FONT></TH> 112</TR> 113<TR BGCOLOR="white" CLASS="TableRowColor"> 114<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 115<CODE> int</CODE></FONT></TD> 116<TD><CODE><B><A HREF="../../../com/sleepycat/db/BtreePrefixCalculator.html#prefix(com.sleepycat.db.Database, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)">prefix</A></B>(<A HREF="../../../com/sleepycat/db/Database.html" title="class in com.sleepycat.db">Database</A> db, 117 <A HREF="../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dbt1, 118 <A HREF="../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dbt2)</CODE> 119 120<BR> 121 The application-specific Btree prefix callback.</TD> 122</TR> 123</TABLE> 124 125<P> 126 127<!-- ============ METHOD DETAIL ========== --> 128 129<A NAME="method_detail"><!-- --></A> 130<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 131<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 132<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 133<B>Method Detail</B></FONT></TH> 134</TR> 135</TABLE> 136 137<A NAME="prefix(com.sleepycat.db.Database, com.sleepycat.db.DatabaseEntry, com.sleepycat.db.DatabaseEntry)"><!-- --></A><H3> 138prefix</H3> 139<PRE> 140int <B>prefix</B>(<A HREF="../../../com/sleepycat/db/Database.html" title="class in com.sleepycat.db">Database</A> db, 141 <A HREF="../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dbt1, 142 <A HREF="../../../com/sleepycat/db/DatabaseEntry.html" title="class in com.sleepycat.db">DatabaseEntry</A> dbt2)</PRE> 143<DL> 144<DD>The application-specific Btree prefix callback. 145 <p> 146<P> 147<DD><DL> 148<DT><B>Parameters:</B><DD><CODE>db</CODE> - The enclosing database handle.<DD><CODE>dbt1</CODE> - A database entry representing a database key.<DD><CODE>dbt2</CODE> - A database entry representing a database key.</DL> 149</DD> 150</DL> 151<!-- ========= END OF CLASS DATA ========= --> 152<HR> 153 154 155<!-- ======= START OF BOTTOM NAVBAR ====== --> 156<A NAME="navbar_bottom"><!-- --></A> 157<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> 158<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 159<TR> 160<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 161<A NAME="navbar_bottom_firstrow"><!-- --></A> 162<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 163 <TR ALIGN="center" VALIGN="top"> 164 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> 165 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 166 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> 167 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/BtreePrefixCalculator.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> 168 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> 169 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> 170 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> 171 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> 172 </TR> 173</TABLE> 174</TD> 175<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> 176<b>Berkeley DB</b><br><font size="-1"> version 4.7.25</font></EM> 177</TD> 178</TR> 179 180<TR> 181<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 182 PREV CLASS 183 <A HREF="../../../com/sleepycat/db/BtreeStats.html" title="class in com.sleepycat.db"><B>NEXT CLASS</B></A></FONT></TD> 184<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> 185 <A HREF="../../../index.html?com/sleepycat/db/BtreePrefixCalculator.html" target="_top"><B>FRAMES</B></A> 186 <A HREF="BtreePrefixCalculator.html" target="_top"><B>NO FRAMES</B></A> 187 <SCRIPT type="text/javascript"> 188 <!-- 189 if(window==top) { 190 document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); 191 } 192 //--> 193</SCRIPT> 194<NOSCRIPT> 195 <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> 196</NOSCRIPT> 197 198 199</FONT></TD> 200</TR> 201<TR> 202<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 203 SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> 204<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 205DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> 206</TR> 207</TABLE> 208<A NAME="skip-navbar_bottom"></A> 209<!-- ======== END OF BOTTOM NAVBAR ======= --> 210 211<HR> 212<font size=1>Copyright (c) 1996,2008 Oracle. 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