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Catalog (Rice Pastry - API Specifications)
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<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
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Rice Pastry API</EM>
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<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
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SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
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DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD>
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rice.persistence</FONT>
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Interface Catalog</H2>
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<DL>
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<DT><B>All Known Subinterfaces:</B> <DD><A HREF="../../rice/persistence/Cache.html" title="interface in rice.persistence">Cache</A>, <A HREF="../../rice/persistence/Storage.html" title="interface in rice.persistence">Storage</A>, <A HREF="../../rice/persistence/StorageManager.html" title="interface in rice.persistence">StorageManager</A></DD>
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<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../rice/persistence/EmptyCache.html" title="class in rice.persistence">EmptyCache</A>, <A HREF="../../rice/persistence/LRUCache.html" title="class in rice.persistence">LRUCache</A>, <A HREF="../../rice/persistence/MemoryStorage.html" title="class in rice.persistence">MemoryStorage</A>, <A HREF="../../rice/persistence/PersistentStorage.html" title="class in rice.persistence">PersistentStorage</A>, <A HREF="../../rice/persistence/StorageManagerImpl.html" title="class in rice.persistence">StorageManagerImpl</A></DD>
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<DL>
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<DT><PRE>public interface <B>Catalog</B></DL>
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</PRE>
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<P>
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This interface is the abstraction of something which holds objects
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which are available for lookup. This interface does not, however,
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specify how the objects are inserted, and makes NO guarantees as to
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whether objects available at a given point in time will be available
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at a later time.
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Implementations of the Catalog interface are designed to be interfaces
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which specify how objects are inserted and stored, and are designed to
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include a cache and persistent storage interface.
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<P>
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<P>
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<HR>
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<P>
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<!-- ========== METHOD SUMMARY =========== -->
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<A NAME="method_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Method Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> boolean</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#exists(rice.p2p.commonapi.Id)">exists</A></B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id)</CODE>
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<BR>
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Returns whether or not an object is present in the location <code>id</code>.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#flush(rice.Continuation)">flush</A></B>(<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</CODE>
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<BR>
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Method which is used to erase all data stored in the Catalog.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> java.io.Serializable</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#getMetadata(rice.p2p.commonapi.Id)">getMetadata</A></B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id)</CODE>
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<BR>
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Returns the metadata associated with the provided object, or null if
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no metadata exists.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#getObject(rice.p2p.commonapi.Id, rice.Continuation)">getObject</A></B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id,
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<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</CODE>
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<BR>
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Returns the object identified by the given id, or <code>null</code> if
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there is no corresponding object (through receiveResult on c).</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#getSize()">getSize</A></B>()</CODE>
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<BR>
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Returns the number of Ids currently stored in the catalog</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> long</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#getTotalSize()">getTotalSize</A></B>()</CODE>
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<BR>
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Returns the total size of the stored data in bytes.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> void</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#rename(rice.p2p.commonapi.Id, rice.p2p.commonapi.Id, rice.Continuation)">rename</A></B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> oldId,
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<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> newId,
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<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</CODE>
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<BR>
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Renames the given object to the new id.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> <A HREF="../../rice/p2p/commonapi/IdSet.html" title="interface in rice.p2p.commonapi">IdSet</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scan()">scan</A></B>()</CODE>
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<BR>
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Return all objects currently stored by this catalog
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NOTE: This method blocks so if the behavior of this method changes and
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no longer stored in memory, this method may be deprecated.</TD>
|
||
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> <A HREF="../../rice/p2p/commonapi/IdSet.html" title="interface in rice.p2p.commonapi">IdSet</A></CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scan(rice.p2p.commonapi.IdRange)">scan</A></B>(<A HREF="../../rice/p2p/commonapi/IdRange.html" title="interface in rice.p2p.commonapi">IdRange</A> range)</CODE>
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<BR>
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Return the objects identified by the given range of ids.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> java.util.SortedMap</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scanMetadata()">scanMetadata</A></B>()</CODE>
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<BR>
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Returns a map which contains keys mapping ids to the associated
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metadata.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> java.util.SortedMap</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scanMetadata(rice.p2p.commonapi.IdRange)">scanMetadata</A></B>(<A HREF="../../rice/p2p/commonapi/IdRange.html" title="interface in rice.p2p.commonapi">IdRange</A> range)</CODE>
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<BR>
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Returns a map which contains keys mapping ids to the associated
|
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metadata.</TD>
|
||
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</TR>
|
||
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE> java.util.SortedMap</CODE></FONT></TD>
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scanMetadataValuesHead(java.lang.Object)">scanMetadataValuesHead</A></B>(java.lang.Object value)</CODE>
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||
|
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||
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<BR>
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Returns the submapping of ids which have metadata less than the provided
|
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value.</TD>
|
||
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</TR>
|
||
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<TR BGCOLOR="white" CLASS="TableRowColor">
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||
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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||
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<CODE> java.util.SortedMap</CODE></FONT></TD>
|
||
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#scanMetadataValuesNull()">scanMetadataValuesNull</A></B>()</CODE>
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||
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||
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<BR>
|
||
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Returns the submapping of ids which have metadata null</TD>
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||
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</TR>
|
||
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<TR BGCOLOR="white" CLASS="TableRowColor">
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||
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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||
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<CODE> void</CODE></FONT></TD>
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||
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<TD><CODE><B><A HREF="../../rice/persistence/Catalog.html#setMetadata(rice.p2p.commonapi.Id, java.io.Serializable, rice.Continuation)">setMetadata</A></B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id,
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java.io.Serializable metadata,
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||
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<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> command)</CODE>
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||
|
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||
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<BR>
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||
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Updates the metadata stored under the given key to be the provided
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||
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value.</TD>
|
||
|
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</TR>
|
||
|
|
</TABLE>
|
||
|
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|
||
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<P>
|
||
|
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|
||
|
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<!-- ============ METHOD DETAIL ========== -->
|
||
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||
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<A NAME="method_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Method Detail</B></FONT></TH>
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||
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</TR>
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||
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</TABLE>
|
||
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||
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<A NAME="exists(rice.p2p.commonapi.Id)"><!-- --></A><H3>
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||
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exists</H3>
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<PRE>
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||
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boolean <B>exists</B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id)</PRE>
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||
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<DL>
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||
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<DD>Returns whether or not an object is present in the location <code>id</code>.
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<P>
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||
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<DD><DL>
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||
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<DT><B>Parameters:</B><DD><CODE>id</CODE> - The id of the object in question.
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<DT><B>Returns:</B><DD>Whether or not an object is present at id.</DL>
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||
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</DD>
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||
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</DL>
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||
|
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<HR>
|
||
|
|
|
||
|
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<A NAME="getObject(rice.p2p.commonapi.Id, rice.Continuation)"><!-- --></A><H3>
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||
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getObject</H3>
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||
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<PRE>
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||
|
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void <B>getObject</B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id,
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||
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<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</PRE>
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||
|
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<DL>
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||
|
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<DD>Returns the object identified by the given id, or <code>null</code> if
|
||
|
|
there is no corresponding object (through receiveResult on c).
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>id</CODE> - The id of the object in question.<DD><CODE>c</CODE> - The command to run once the operation is complete</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="getMetadata(rice.p2p.commonapi.Id)"><!-- --></A><H3>
|
||
|
|
getMetadata</H3>
|
||
|
|
<PRE>
|
||
|
|
java.io.Serializable <B>getMetadata</B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns the metadata associated with the provided object, or null if
|
||
|
|
no metadata exists. The metadata must be stored in memory, so this
|
||
|
|
operation is guaranteed to be fast and non-blocking.
|
||
|
|
|
||
|
|
The metadata returned from this method must *NOT* be mutated in any way,
|
||
|
|
as the actual reference to the internal object is returned. Mutating
|
||
|
|
this metadata may make the internal indices incorrect, resulting
|
||
|
|
in undefined behavior. Changing the metadata should be done by creating
|
||
|
|
a new metadata object and calling setMetadata().
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>id</CODE> - The id for which the metadata is needed
|
||
|
|
<DT><B>Returns:</B><DD>The metadata, or null if none exists</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="setMetadata(rice.p2p.commonapi.Id, java.io.Serializable, rice.Continuation)"><!-- --></A><H3>
|
||
|
|
setMetadata</H3>
|
||
|
|
<PRE>
|
||
|
|
void <B>setMetadata</B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> id,
|
||
|
|
java.io.Serializable metadata,
|
||
|
|
<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> command)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Updates the metadata stored under the given key to be the provided
|
||
|
|
value. As this may require a disk access, the requestor must
|
||
|
|
also provide a continuation to return the result to.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>id</CODE> - The id for the metadata<DD><CODE>metadata</CODE> - The metadata to store<DD><CODE>c</CODE> - The command to run once the operation is complete</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="rename(rice.p2p.commonapi.Id, rice.p2p.commonapi.Id, rice.Continuation)"><!-- --></A><H3>
|
||
|
|
rename</H3>
|
||
|
|
<PRE>
|
||
|
|
void <B>rename</B>(<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> oldId,
|
||
|
|
<A HREF="../../rice/p2p/commonapi/Id.html" title="interface in rice.p2p.commonapi">Id</A> newId,
|
||
|
|
<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Renames the given object to the new id. This method is potentially faster
|
||
|
|
than store/cache and unstore/uncache.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>oldId</CODE> - The id of the object in question.<DD><CODE>newId</CODE> - The new id of the object in question.<DD><CODE>c</CODE> - The command to run once the operation is complete</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scan(rice.p2p.commonapi.IdRange)"><!-- --></A><H3>
|
||
|
|
scan</H3>
|
||
|
|
<PRE>
|
||
|
|
<A HREF="../../rice/p2p/commonapi/IdSet.html" title="interface in rice.p2p.commonapi">IdSet</A> <B>scan</B>(<A HREF="../../rice/p2p/commonapi/IdRange.html" title="interface in rice.p2p.commonapi">IdRange</A> range)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Return the objects identified by the given range of ids. The IdSet
|
||
|
|
returned contains the Ids of the stored objects. The range is
|
||
|
|
partially inclusive, the lower range is inclusive, and the upper
|
||
|
|
exclusive.
|
||
|
|
|
||
|
|
NOTE: This method blocks so if the behavior of this method changes and
|
||
|
|
no longer stored in memory, this method may be deprecated.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>range</CODE> - The range to query
|
||
|
|
<DT><B>Returns:</B><DD>The idset containing the keys</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scan()"><!-- --></A><H3>
|
||
|
|
scan</H3>
|
||
|
|
<PRE>
|
||
|
|
<A HREF="../../rice/p2p/commonapi/IdSet.html" title="interface in rice.p2p.commonapi">IdSet</A> <B>scan</B>()</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Return all objects currently stored by this catalog
|
||
|
|
|
||
|
|
NOTE: This method blocks so if the behavior of this method changes and
|
||
|
|
no longer stored in memory, this method may be deprecated.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
|
||
|
|
<DT><B>Returns:</B><DD>The idset containing the keys</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scanMetadata(rice.p2p.commonapi.IdRange)"><!-- --></A><H3>
|
||
|
|
scanMetadata</H3>
|
||
|
|
<PRE>
|
||
|
|
java.util.SortedMap <B>scanMetadata</B>(<A HREF="../../rice/p2p/commonapi/IdRange.html" title="interface in rice.p2p.commonapi">IdRange</A> range)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns a map which contains keys mapping ids to the associated
|
||
|
|
metadata.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>range</CODE> - The range to query
|
||
|
|
<DT><B>Returns:</B><DD>The map containing the keys</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scanMetadata()"><!-- --></A><H3>
|
||
|
|
scanMetadata</H3>
|
||
|
|
<PRE>
|
||
|
|
java.util.SortedMap <B>scanMetadata</B>()</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns a map which contains keys mapping ids to the associated
|
||
|
|
metadata.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
|
||
|
|
<DT><B>Returns:</B><DD>The treemap mapping ids to metadata</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scanMetadataValuesHead(java.lang.Object)"><!-- --></A><H3>
|
||
|
|
scanMetadataValuesHead</H3>
|
||
|
|
<PRE>
|
||
|
|
java.util.SortedMap <B>scanMetadataValuesHead</B>(java.lang.Object value)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns the submapping of ids which have metadata less than the provided
|
||
|
|
value.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>value</CODE> - The maximal metadata value
|
||
|
|
<DT><B>Returns:</B><DD>The submapping</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="scanMetadataValuesNull()"><!-- --></A><H3>
|
||
|
|
scanMetadataValuesNull</H3>
|
||
|
|
<PRE>
|
||
|
|
java.util.SortedMap <B>scanMetadataValuesNull</B>()</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns the submapping of ids which have metadata null
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
|
||
|
|
<DT><B>Returns:</B><DD>The submapping</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="getSize()"><!-- --></A><H3>
|
||
|
|
getSize</H3>
|
||
|
|
<PRE>
|
||
|
|
int <B>getSize</B>()</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns the number of Ids currently stored in the catalog
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
|
||
|
|
<DT><B>Returns:</B><DD>The number of ids in the catalog</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="getTotalSize()"><!-- --></A><H3>
|
||
|
|
getTotalSize</H3>
|
||
|
|
<PRE>
|
||
|
|
long <B>getTotalSize</B>()</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Returns the total size of the stored data in bytes.
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
|
||
|
|
<DT><B>Returns:</B><DD>The total storage size</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<HR>
|
||
|
|
|
||
|
|
<A NAME="flush(rice.Continuation)"><!-- --></A><H3>
|
||
|
|
flush</H3>
|
||
|
|
<PRE>
|
||
|
|
void <B>flush</B>(<A HREF="../../rice/Continuation.html" title="interface in rice">Continuation</A> c)</PRE>
|
||
|
|
<DL>
|
||
|
|
<DD>Method which is used to erase all data stored in the Catalog.
|
||
|
|
Use this method with care!
|
||
|
|
<P>
|
||
|
|
<DD><DL>
|
||
|
|
<DT><B>Parameters:</B><DD><CODE>c</CODE> - The command to run once done</DL>
|
||
|
|
</DD>
|
||
|
|
</DL>
|
||
|
|
<!-- ========= END OF CLASS DATA ========= -->
|
||
|
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<HR>
|
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|
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|
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<!-- ======= START OF BOTTOM NAVBAR ====== -->
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<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
|
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|
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SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD>
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