srdiindex.html

jxta的api库

<PRE>
public <B>SrdiIndex</B>(<A HREF="../../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A>&nbsp;group,
                 java.lang.String&nbsp;indexName,
                 long&nbsp;interval)</PRE>
<DL>
<DD>Construct a SrdiIndex and starts a GC thread which runs every "interval"
  milliseconds
<P>
<DT><B>Parameters:</B><DD><CODE>interval</CODE> - the interval at which the gc will run in milliseconds<DD><CODE>group</CODE> - group context<DD><CODE>indexName</CODE> - SrdiIndex name</DL>

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<B>Method Detail</B></FONT></TD>
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<A NAME="startGC(net.jxta.peergroup.PeerGroup, java.lang.String, long)"><!-- --></A><H3>
startGC</H3>
<PRE>
protected void <B>startGC</B>(<A HREF="../../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A>&nbsp;group,
                       java.lang.String&nbsp;indexName,
                       long&nbsp;interval)</PRE>
<DL>
<DD>Start the GC thread
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getIndexName()"><!-- --></A><H3>
getIndexName</H3>
<PRE>
public java.lang.String <B>getIndexName</B>()</PRE>
<DL>
<DD>Returns the name of this srdi index.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>index name.</DL>
</DD>
</DL>
<HR>

<A NAME="add(java.lang.String, java.lang.String, java.lang.String, net.jxta.peer.PeerID, long)"><!-- --></A><H3>
add</H3>
<PRE>
public void <B>add</B>(java.lang.String&nbsp;primaryKey,
                java.lang.String&nbsp;attribute,
                java.lang.String&nbsp;value,
                <A HREF="../../../../net/jxta/peer/PeerID.html" title="class in net.jxta.peer">PeerID</A>&nbsp;pid,
                long&nbsp;expiration)</PRE>
<DL>
<DD>add an index entry
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>primaryKey</CODE> - primary key<DD><CODE>attribute</CODE> - Attribute String to query on<DD><CODE>value</CODE> - value of the attribute string<DD><CODE>expiration</CODE> - expiration associated with this entry relative time in
      milliseconds<DD><CODE>pid</CODE> - peerid reference</DL>
</DD>
</DL>
<HR>

<A NAME="remove(net.jxta.peer.PeerID)"><!-- --></A><H3>
remove</H3>
<PRE>
public void <B>remove</B>(<A HREF="../../../../net/jxta/peer/PeerID.html" title="class in net.jxta.peer">PeerID</A>&nbsp;pid)</PRE>
<DL>
<DD>remove entries pointing to peer id from cache
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pid</CODE> - peer id to remove</DL>
</DD>
</DL>
<HR>

<A NAME="query(java.lang.String, java.lang.String, java.lang.String, int)"><!-- --></A><H3>
query</H3>
<PRE>
public java.util.Vector <B>query</B>(java.lang.String&nbsp;primaryKey,
                              java.lang.String&nbsp;attribute,
                              java.lang.String&nbsp;value,
                              int&nbsp;threshold)</PRE>
<DL>
<DD>Query SrdiIndex
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attribute</CODE> - Attribute String to query on<DD><CODE>value</CODE> - value of the attribute string
<DT><B>Returns:</B><DD>an enumeration of canonical paths</DL>
</DD>
</DL>
<HR>

<A NAME="query(java.lang.String)"><!-- --></A><H3>
query</H3>
<PRE>
public java.util.Vector <B>query</B>(java.lang.String&nbsp;primaryKey)</PRE>
<DL>
<DD>Query SrdiIndex
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>primaryKey</CODE> - primary key
<DT><B>Returns:</B><DD>an enumeration of peerids</DL>
</DD>
</DL>
<HR>

<A NAME="getData(java.util.ArrayList)"><!-- --></A><H3>
getData</H3>
<PRE>
public static byte[] <B>getData</B>(java.util.ArrayList&nbsp;list)</PRE>
<DL>
<DD>converts an ArrayList into a byte[]
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>list</CODE> - ArrayList to convert
<DT><B>Returns:</B><DD>byte []</DL>
</DD>
</DL>
<HR>

<A NAME="readRecord(net.jxta.impl.xindice.core.data.Record)"><!-- --></A><H3>
readRecord</H3>
<PRE>
public static java.util.ArrayList <B>readRecord</B>(<A HREF="../../../../net/jxta/impl/xindice/core/data/Record.html" title="class in net.jxta.impl.xindice.core.data">Record</A>&nbsp;record)</PRE>
<DL>
<DD>Reads the content of a record into ArrayList
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>record</CODE> - Btree Record
<DT><B>Returns:</B><DD>ArrayList of entries</DL>
</DD>
</DL>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Empties the index completely.
 The entries are abandonned to the GC.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="garbageCollect()"><!-- --></A><H3>
garbageCollect</H3>
<PRE>
public void <B>garbageCollect</B>()</PRE>
<DL>
<DD>Garbage Collect expired entries
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="removeKey(java.lang.String, java.lang.String)"><!-- --></A><H3>
removeKey</H3>
<PRE>
public void <B>removeKey</B>(java.lang.String&nbsp;primaryKey,
                      java.lang.String&nbsp;secondaryKey)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="stop()"><!-- --></A><H3>
stop</H3>
<PRE>
public void <B>stop</B>()</PRE>
<DL>
<DD>stop the current running thread
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="run()"><!-- --></A><H3>
run</H3>
<PRE>
public void <B>run</B>()</PRE>
<DL>
<DD>

  <p/>Periodic thread for GC
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>run</CODE> in interface <CODE>java.lang.Runnable</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="clearSrdi(net.jxta.peergroup.PeerGroup)"><!-- --></A><H3>
clearSrdi</H3>
<PRE>
public static void <B>clearSrdi</B>(<A HREF="../../../../net/jxta/peergroup/PeerGroup.html" title="interface in net.jxta.peergroup">PeerGroup</A>&nbsp;group)</PRE>
<DL>
<DD>Flushes the Srdi directory for a specified group
  this method should only be called before initialization of a given group
  calling this method on a running group would have undefined results
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>group</CODE> - group context</DL>
</DD>
</DL>
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