📄 filer.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><TITLE>Filer (Project JXTA J2SE)</TITLE><META NAME="keywords" CONTENT="net.jxta.impl.xindice.core.filer.Filer interface"><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="Filer (Project JXTA J2SE)";}</SCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="Skip navigation links"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Filer.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><a href='http://www.jxta.org' target='_blank'>Project JXTA</a></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../../net/jxta/impl/xindice/core/filer/BTreeCallback.html" title="interface in net.jxta.impl.xindice.core.filer"><B>PREV CLASS</B></A> <A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Streamable.html" title="interface in net.jxta.impl.xindice.core.filer"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../../index.html" target="_top"><B>FRAMES</B></A> <A HREF="Filer.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT> <A HREF="../../../../../../allclasses-noframe.html"><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><A NAME="skip-navbar_top"></A><!-- ========= END OF TOP NAVBAR ========= --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">net.jxta.impl.xindice.core.filer</FONT><BR>Interface Filer</H2><DL><DT><B>All Superinterfaces:</B> <DD><A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html" title="interface in net.jxta.impl.xindice.core">DBObject</A>, <A HREF="../../../../../../net/jxta/impl/xindice/util/Named.html" title="interface in net.jxta.impl.xindice.util">Named</A></DD></DL><DL><DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/BTreeFiler.html" title="class in net.jxta.impl.xindice.core.filer">BTreeFiler</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/filer/MemFiler.html" title="class in net.jxta.impl.xindice.core.filer">MemFiler</A></DD></DL><HR><DL><DT>public interface <B>Filer</B><DT>extends <A HREF="../../../../../../net/jxta/impl/xindice/util/Named.html" title="interface in net.jxta.impl.xindice.util">Named</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html" title="interface in net.jxta.impl.xindice.core">DBObject</A></DL><P>Filer is the low-level file management interface for Xindice. A Filer object is implemented in order to provide a data source to the Xindice Collection class. Filers are developed to perform transparent storage and retrieval to and from heterogenous data sources (such as FTP, HTTP, RDBMS, etc...)<P><P><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><!-- ======== CONSTRUCTOR SUMMARY ======== --><!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#deleteRecord(net.jxta.impl.xindice.core.data.Key)">deleteRecord</A></B>(<A HREF="../../../../../../net/jxta/impl/xindice/core/data/Key.html" title="class in net.jxta.impl.xindice.core.data">Key</A> key)</CODE><BR> deleteRecord removes a Record from the Filer based on the specified Key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#flush()">flush</A></B>()</CODE><BR> flush forcefully flushes any unwritten buffers to disk.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#getRecordCount()">getRecordCount</A></B>()</CODE><BR> getRecordCount returns the number of Records in the Filer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../../../net/jxta/impl/xindice/core/data/RecordSet.html" title="interface in net.jxta.impl.xindice.core.data">RecordSet</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#getRecordSet()">getRecordSet</A></B>()</CODE><BR> getRecordSet returns a RecordSet object for the current Filer.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../../../net/jxta/impl/xindice/core/data/Record.html" title="class in net.jxta.impl.xindice.core.data">Record</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#readRecord(net.jxta.impl.xindice.core.data.Key)">readRecord</A></B>(<A HREF="../../../../../../net/jxta/impl/xindice/core/data/Key.html" title="class in net.jxta.impl.xindice.core.data">Key</A> key)</CODE><BR> readRecord returns a Record from the Filer based on the specified Key.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../../../../net/jxta/impl/xindice/core/data/Record.html" title="class in net.jxta.impl.xindice.core.data">Record</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#readRecord(long)">readRecord</A></B>(long pos)</CODE><BR> readRecord returns a Record from the Filer at the specified position. </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> long</CODE></FONT></TD><TD><CODE><B><A HREF="../../../../../../net/jxta/impl/xindice/core/filer/Filer.html#writeRecord(net.jxta.impl.xindice.core.data.Key, net.jxta.impl.xindice.core.data.Value)">writeRecord</A></B>(<A HREF="../../../../../../net/jxta/impl/xindice/core/data/Key.html" title="class in net.jxta.impl.xindice.core.data">Key</A> key, <A HREF="../../../../../../net/jxta/impl/xindice/core/data/Value.html" title="class in net.jxta.impl.xindice.core.data">Value</A> value)</CODE><BR> writeRecord writes a Value to the Filer based on the specified Key.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_net.jxta.impl.xindice.util.Named"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface net.jxta.impl.xindice.util.<A HREF="../../../../../../net/jxta/impl/xindice/util/Named.html" title="interface in net.jxta.impl.xindice.util">Named</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../../net/jxta/impl/xindice/util/Named.html#getName()">getName</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_net.jxta.impl.xindice.core.DBObject"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from interface net.jxta.impl.xindice.core.<A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html" title="interface in net.jxta.impl.xindice.core">DBObject</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#close()">close</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#create()">create</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#drop()">drop</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#exists()">exists</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#isOpened()">isOpened</A>, <A HREF="../../../../../../net/jxta/impl/xindice/core/DBObject.html#open()">open</A></CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><!-- ========= CONSTRUCTOR DETAIL ======== --><!-- ============ METHOD DETAIL ========== -->⌨️ 快捷键说明
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