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java.lang.Objectcom.yahoo.ycsb.DB
com.yahoo.ycsb.db.HBaseClient
public class HBaseClient
HBase client for YCSB framework
Field Summary | |
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java.lang.String |
_columnFamily
|
byte[] |
_columnFamilyBytes
|
boolean |
_debug
|
HTable |
_hTable
|
java.lang.String |
_table
|
static int |
HttpError
|
static int |
NoMatchingRecord
|
static int |
Ok
|
static int |
ServerError
|
static java.lang.Object |
tableLock
|
Constructor Summary | |
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HBaseClient()
|
Method Summary | |
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void |
cleanup()
Cleanup any state for this DB. |
int |
delete(java.lang.String table,
java.lang.String key)
Delete a record from the database. |
void |
getHTable(java.lang.String table)
|
void |
init()
Initialize any state for this DB. |
int |
insert(java.lang.String table,
java.lang.String key,
java.util.HashMap<java.lang.String,java.lang.String> values)
Insert a record in the database. |
static void |
main(java.lang.String[] args)
|
int |
read(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)
Read a record from the database. |
int |
scan(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)
Perform a range scan for a set of records in the database. |
int |
update(java.lang.String table,
java.lang.String key,
java.util.HashMap<java.lang.String,java.lang.String> values)
Update a record in the database. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public boolean _debug
public java.lang.String _table
public HTable _hTable
public java.lang.String _columnFamily
public byte[] _columnFamilyBytes
public static final int Ok
public static final int ServerError
public static final int HttpError
public static final int NoMatchingRecord
public static final java.lang.Object tableLock
Constructor Detail |
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public HBaseClient()
Method Detail |
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public void init() throws DBException
DBException
public void cleanup() throws DBException
DBException
public void getHTable(java.lang.String table) throws java.io.IOException
java.io.IOException
public int read(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)
table
- The name of the tablekey
- The record key of the record to read.fields
- The list of fields to read, or null for all of themresult
- A HashMap of field/value pairs for the result
public int scan(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)
table
- The name of the tablestartkey
- The record key of the first record to read.recordcount
- The number of records to readfields
- The list of fields to read, or null for all of themresult
- A Vector of HashMaps, where each HashMap is a set field/value pairs for one record
public int update(java.lang.String table, java.lang.String key, java.util.HashMap<java.lang.String,java.lang.String> values)
table
- The name of the tablekey
- The record key of the record to writevalues
- A HashMap of field/value pairs to update in the record
public int insert(java.lang.String table, java.lang.String key, java.util.HashMap<java.lang.String,java.lang.String> values)
table
- The name of the tablekey
- The record key of the record to insert.values
- A HashMap of field/value pairs to insert in the record
public int delete(java.lang.String table, java.lang.String key)
table
- The name of the tablekey
- The record key of the record to delete.
public static void main(java.lang.String[] args)
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