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	CassandraClient
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	SUMMARY: NESTED \| <A HREF="#field_summary">FIELD</A> \| <A HREF="#constructor_summary">CONSTR</A> \| <A HREF="#method_summary">METHOD</A></FONT></TD>
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	com.yahoo.ycsb.db</FONT>
	<BR>
	Class CassandraClient</H2>
	<PRE>
	java.lang.Object
	<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">com.yahoo.ycsb.DB</A>
	<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.yahoo.ycsb.db.CassandraClient</B>
	</PRE>
	<HR>
	<DL>
	<DT><PRE>public class <B>CassandraClient</B><DT>extends <A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></DL>
	</PRE>

	<P>
	XXXX if we do replication, fix the consistency levels
	<P>

	<P>
	<HR>

	<P>
	<!-- =========== FIELD SUMMARY =========== -->

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	<B>Field Summary</B></FONT></TH>
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	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#CONNECTION_RETRY_PROPERTY">CONNECTION_RETRY_PROPERTY</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#CONNECTION_RETRY_PROPERTY_DEFAULT">CONNECTION_RETRY_PROPERTY_DEFAULT</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#ConnectionRetries">ConnectionRetries</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#Error">Error</A></B></CODE>

	<BR>
	</TD>
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	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#Ok">Ok</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#OPERATION_RETRY_PROPERTY">OPERATION_RETRY_PROPERTY</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static java.lang.String</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#OPERATION_RETRY_PROPERTY_DEFAULT">OPERATION_RETRY_PROPERTY_DEFAULT</A></B></CODE>

	<BR>
	</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#OperationRetries">OperationRetries</A></B></CODE>

	<BR>
	</TD>
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	<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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	<B>Constructor Summary</B></FONT></TH>
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	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#CassandraClient()">CassandraClient</A></B>()</CODE>

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	<CODE> void</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#cleanup()">cleanup</A></B>()</CODE>

	<BR>
	Cleanup any state for this DB.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#delete(java.lang.String, java.lang.String)">delete</A></B>(java.lang.String table,
	java.lang.String key)</CODE>

	<BR>
	Delete a record from the database.</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="../../../../com/yahoo/ycsb/db/CassandraClient.html#init()">init</A></B>()</CODE>

	<BR>
	Initialize any state for this DB.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#insert(java.lang.String, java.lang.String, java.util.HashMap)">insert</A></B>(java.lang.String table,
	java.lang.String key,
	java.util.HashMap<java.lang.String,java.lang.String> values)</CODE>

	<BR>
	Insert a record in the database.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE>static void</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#main(java.lang.String[])">main</A></B>(java.lang.String[] args)</CODE>

	<BR>
	</TD>
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	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#read(java.lang.String, java.lang.String, java.util.Set, java.util.HashMap)">read</A></B>(java.lang.String table,
	java.lang.String key,
	java.util.Set<java.lang.String> fields,
	java.util.HashMap<java.lang.String,java.lang.String> result)</CODE>

	<BR>
	Read a record from the database.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#scan(java.lang.String, java.lang.String, int, java.util.Set, java.util.Vector)">scan</A></B>(java.lang.String table,
	java.lang.String startkey,
	int recordcount,
	java.util.Set<java.lang.String> fields,
	java.util.Vector<java.util.HashMap<java.lang.String,java.lang.String>> result)</CODE>

	<BR>
	Perform a range scan for a set of records in the database.</TD>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
	<CODE> int</CODE></FONT></TD>
	<TD><CODE><B><A HREF="../../../../com/yahoo/ycsb/db/CassandraClient.html#update(java.lang.String, java.lang.String, java.util.HashMap)">update</A></B>(java.lang.String table,
	java.lang.String key,
	java.util.HashMap<java.lang.String,java.lang.String> values)</CODE>

	<BR>
	Update a record in the database.</TD>
	</TR>
	</TABLE>
	<A NAME="methods_inherited_from_class_com.yahoo.ycsb.DB"><!-- --></A>
	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
	<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
	<TH ALIGN="left"><B>Methods inherited from class com.yahoo.ycsb.<A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></B></TH>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#getProperties()">getProperties</A>, <A HREF="../../../../com/yahoo/ycsb/DB.html#setProperties(java.util.Properties)">setProperties</A></CODE></TD>
	</TR>
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	<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
	<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
	<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
	</TR>
	<TR BGCOLOR="white" CLASS="TableRowColor">
	<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
	</TR>
	</TABLE>

	<P>

	<!-- ============ FIELD DETAIL =========== -->

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	<B>Field Detail</B></FONT></TH>
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	<A NAME="Ok"><!-- --></A><H3>
	Ok</H3>
	<PRE>
	public static final int <B>Ok</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.Ok">Constant Field Values</A></DL>
	</DL>
	<HR>

	<A NAME="Error"><!-- --></A><H3>
	Error</H3>
	<PRE>
	public static final int <B>Error</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.Error">Constant Field Values</A></DL>
	</DL>
	<HR>

	<A NAME="ConnectionRetries"><!-- --></A><H3>
	ConnectionRetries</H3>
	<PRE>
	public int <B>ConnectionRetries</B></PRE>
	<DL>
	<DL>
	</DL>
	</DL>
	<HR>

	<A NAME="OperationRetries"><!-- --></A><H3>
	OperationRetries</H3>
	<PRE>
	public int <B>OperationRetries</B></PRE>
	<DL>
	<DL>
	</DL>
	</DL>
	<HR>

	<A NAME="CONNECTION_RETRY_PROPERTY"><!-- --></A><H3>
	CONNECTION_RETRY_PROPERTY</H3>
	<PRE>
	public static final java.lang.String <B>CONNECTION_RETRY_PROPERTY</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.CONNECTION_RETRY_PROPERTY">Constant Field Values</A></DL>
	</DL>
	<HR>

	<A NAME="CONNECTION_RETRY_PROPERTY_DEFAULT"><!-- --></A><H3>
	CONNECTION_RETRY_PROPERTY_DEFAULT</H3>
	<PRE>
	public static final java.lang.String <B>CONNECTION_RETRY_PROPERTY_DEFAULT</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.CONNECTION_RETRY_PROPERTY_DEFAULT">Constant Field Values</A></DL>
	</DL>
	<HR>

	<A NAME="OPERATION_RETRY_PROPERTY"><!-- --></A><H3>
	OPERATION_RETRY_PROPERTY</H3>
	<PRE>
	public static final java.lang.String <B>OPERATION_RETRY_PROPERTY</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.OPERATION_RETRY_PROPERTY">Constant Field Values</A></DL>
	</DL>
	<HR>

	<A NAME="OPERATION_RETRY_PROPERTY_DEFAULT"><!-- --></A><H3>
	OPERATION_RETRY_PROPERTY_DEFAULT</H3>
	<PRE>
	public static final java.lang.String <B>OPERATION_RETRY_PROPERTY_DEFAULT</B></PRE>
	<DL>
	<DL>
	<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.yahoo.ycsb.db.CassandraClient.OPERATION_RETRY_PROPERTY_DEFAULT">Constant Field Values</A></DL>
	</DL>

	<!-- ========= CONSTRUCTOR DETAIL ======== -->

	<A NAME="constructor_detail"><!-- --></A>
	<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
	<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
	<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
	<B>Constructor Detail</B></FONT></TH>
	</TR>
	</TABLE>

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

	<!-- ============ METHOD DETAIL ========== -->

	<A NAME="method_detail"><!-- --></A>
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	<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
	<B>Method Detail</B></FONT></TH>
	</TR>
	</TABLE>

	<A NAME="init()"><!-- --></A><H3>
	init</H3>
	<PRE>
	public void <B>init</B>()
	throws <A HREF="../../../../com/yahoo/ycsb/DBException.html" title="class in com.yahoo.ycsb">DBException</A></PRE>
	<DL>
	<DD>Initialize any state for this DB.
	Called once per DB instance; there is one DB instance per client thread.
	<P>
	<DD><DL>
	<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#init()">init</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>

	<DT><B>Throws:</B>
	<DD><CODE><A HREF="../../../../com/yahoo/ycsb/DBException.html" title="class in com.yahoo.ycsb">DBException</A></CODE></DL>
	</DD>
	</DL>
	<HR>

	<A NAME="cleanup()"><!-- --></A><H3>
	cleanup</H3>
	<PRE>
	public void <B>cleanup</B>()
	throws <A HREF="../../../../com/yahoo/ycsb/DBException.html" title="class in com.yahoo.ycsb">DBException</A></PRE>
	<DL>
	<DD>Cleanup any state for this DB.
	Called once per DB instance; there is one DB instance per client thread.
	<P>
	<DD><DL>
	<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#cleanup()">cleanup</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>

	<DT><B>Throws:</B>
	<DD><CODE><A HREF="../../../../com/yahoo/ycsb/DBException.html" title="class in com.yahoo.ycsb">DBException</A></CODE></DL>
	</DD>
	</DL>
	<HR>

	<A NAME="read(java.lang.String, java.lang.String, java.util.Set, java.util.HashMap)"><!-- --></A><H3>
	read</H3>
	<PRE>
	public int <B>read</B>(java.lang.String table,
	java.lang.String key,
	java.util.Set<java.lang.String> fields,
	java.util.HashMap<java.lang.String,java.lang.String> result)</PRE>
	<DL>
	<DD>Read a record from the database. Each field/value pair from the result will be stored in a HashMap.
	<P>
	<DD><DL>
	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#read(java.lang.String, java.lang.String, java.util.Set, java.util.HashMap)">read</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>
	<DT><B>Parameters:</B><DD><CODE>table</CODE> - The name of the table<DD><CODE>key</CODE> - The record key of the record to read.<DD><CODE>fields</CODE> - The list of fields to read, or null for all of them<DD><CODE>result</CODE> - A HashMap of field/value pairs for the result
	<DT><B>Returns:</B><DD>Zero on success, a non-zero error code on error</DL>
	</DD>
	</DL>
	<HR>

	<A NAME="scan(java.lang.String, java.lang.String, int, java.util.Set, java.util.Vector)"><!-- --></A><H3>
	scan</H3>
	<PRE>
	public int <B>scan</B>(java.lang.String table,
	java.lang.String startkey,
	int recordcount,
	java.util.Set<java.lang.String> fields,
	java.util.Vector<java.util.HashMap<java.lang.String,java.lang.String>> result)</PRE>
	<DL>
	<DD>Perform a range scan for a set of records in the database. Each field/value pair from the result will be stored in a HashMap.
	<P>
	<DD><DL>
	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#scan(java.lang.String, java.lang.String, int, java.util.Set, java.util.Vector)">scan</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>
	<DT><B>Parameters:</B><DD><CODE>table</CODE> - The name of the table<DD><CODE>startkey</CODE> - The record key of the first record to read.<DD><CODE>recordcount</CODE> - The number of records to read<DD><CODE>fields</CODE> - The list of fields to read, or null for all of them<DD><CODE>result</CODE> - A Vector of HashMaps, where each HashMap is a set field/value pairs for one record
	<DT><B>Returns:</B><DD>Zero on success, a non-zero error code on error</DL>
	</DD>
	</DL>
	<HR>

	<A NAME="update(java.lang.String, java.lang.String, java.util.HashMap)"><!-- --></A><H3>
	update</H3>
	<PRE>
	public int <B>update</B>(java.lang.String table,
	java.lang.String key,
	java.util.HashMap<java.lang.String,java.lang.String> values)</PRE>
	<DL>
	<DD>Update a record in the database. Any field/value pairs in the specified values HashMap will be written into the record with the specified
	record key, overwriting any existing values with the same field name.
	<P>
	<DD><DL>
	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#update(java.lang.String, java.lang.String, java.util.HashMap)">update</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>
	<DT><B>Parameters:</B><DD><CODE>table</CODE> - The name of the table<DD><CODE>key</CODE> - The record key of the record to write.<DD><CODE>values</CODE> - A HashMap of field/value pairs to update in the record
	<DT><B>Returns:</B><DD>Zero on success, a non-zero error code on error</DL>
	</DD>
	</DL>
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	<A NAME="insert(java.lang.String, java.lang.String, java.util.HashMap)"><!-- --></A><H3>
	insert</H3>
	<PRE>
	public int <B>insert</B>(java.lang.String table,
	java.lang.String key,
	java.util.HashMap<java.lang.String,java.lang.String> values)</PRE>
	<DL>
	<DD>Insert a record in the database. Any field/value pairs in the specified values HashMap will be written into the record with the specified
	record key.
	<P>
	<DD><DL>
	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#insert(java.lang.String, java.lang.String, java.util.HashMap)">insert</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>
	<DT><B>Parameters:</B><DD><CODE>table</CODE> - The name of the table<DD><CODE>key</CODE> - The record key of the record to insert.<DD><CODE>values</CODE> - A HashMap of field/value pairs to insert in the record
	<DT><B>Returns:</B><DD>Zero on success, a non-zero error code on error</DL>
	</DD>
	</DL>
	<HR>

	<A NAME="delete(java.lang.String, java.lang.String)"><!-- --></A><H3>
	delete</H3>
	<PRE>
	public int <B>delete</B>(java.lang.String table,
	java.lang.String key)</PRE>
	<DL>
	<DD>Delete a record from the database.
	<P>
	<DD><DL>
	<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../com/yahoo/ycsb/DB.html#delete(java.lang.String, java.lang.String)">delete</A></CODE> in class <CODE><A HREF="../../../../com/yahoo/ycsb/DB.html" title="class in com.yahoo.ycsb">DB</A></CODE></DL>
	</DD>
	<DD><DL>
	<DT><B>Parameters:</B><DD><CODE>table</CODE> - The name of the table<DD><CODE>key</CODE> - The record key of the record to delete.
	<DT><B>Returns:</B><DD>Zero on success, a non-zero error code on error</DL>
	</DD>
	</DL>
	<HR>

	<A NAME="main(java.lang.String[])"><!-- --></A><H3>
	main</H3>
	<PRE>
	public static void <B>main</B>(java.lang.String[] args)</PRE>
	<DL>
	<DD><DL>
	</DL>
	</DD>
	</DL>
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