org.sharengo.wikitty.hbase
Class WikittyHBaseUtil

java.lang.Object
  org.sharengo.wikitty.hbase.WikittyHBaseUtil

public class WikittyHBaseUtil
extends Object

Version:

$Revision: 1 $ Last update: $Date: 2010-04-16 10:29:38 +0200 (ven., 16 avril 2010) $ by : $Author: echatellier $

Author:

poussin

Field Summary

protected static org.apache.hadoop.hbase.HBaseConfiguration	conf
static byte[]	F_ADMIN family for administrative data: id, version, ...
static byte[]	F_DATA family for data
static String	HBASE_CLIENT_PAUSE General client pause value.
static String	HBASE_CLIENT_RETRIES_NUMBER Maximum retries.
static byte[]	NULL null value in hbase
static byte[]	Q_DELETE_DATE delete date qualifier in hbase
static byte[]	Q_EXTENSION extension qualifier in hbase
static byte[]	Q_ID wikitty id qualifier in hbase
static byte[]	Q_NAME extension name qualifier in hbase
static byte[]	Q_REQUIRES requires qualifier in hbase
static byte[]	Q_TAGVALUES tagvalues qualifier in hbase
static byte[]	Q_VERSION version qualifier in hbase
static byte[]	T_EXTENSION table for extension
static byte[]	T_WIKITTY table for wikitty

Constructor Summary

WikittyHBaseUtil()

Method Summary

static Object	fromBytes(byte[] obj) Convert any byte array to object
static Object	fromBytes(FieldType field, byte[] b)
static org.apache.hadoop.hbase.HBaseConfiguration	getHBaseConfiguration()
static byte[]	toBytes(FieldType field, Object o) Convert object to byte[] representation - boolean representation use 0 for false and 1 for true - BigDecimal use String representation
static byte[]	toBytes(Object obj) Convert any object serializale to byte array

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

T_EXTENSION

public static final byte[] T_EXTENSION

table for extension

T_WIKITTY

public static final byte[] T_WIKITTY

table for wikitty

F_ADMIN

public static final byte[] F_ADMIN

family for administrative data: id, version, ...

F_DATA

public static final byte[] F_DATA

family for data

Q_EXTENSION

public static final byte[] Q_EXTENSION

extension qualifier in hbase

Q_VERSION

public static final byte[] Q_VERSION

version qualifier in hbase

Q_REQUIRES

public static final byte[] Q_REQUIRES

requires qualifier in hbase

Q_TAGVALUES

public static final byte[] Q_TAGVALUES

tagvalues qualifier in hbase

Q_ID

public static final byte[] Q_ID

wikitty id qualifier in hbase

Q_NAME

public static final byte[] Q_NAME

extension name qualifier in hbase

Q_DELETE_DATE

public static final byte[] Q_DELETE_DATE

delete date qualifier in hbase

NULL

public static final byte[] NULL

null value in hbase

HBASE_CLIENT_RETRIES_NUMBER

public static final String HBASE_CLIENT_RETRIES_NUMBER

Maximum retries. Used as maximum for all retryable operations such as fetching of the root region from root region server, getting a cell's value, starting a row update, etc. Default: 10.

See Also:

Constant Field Values

HBASE_CLIENT_PAUSE

public static final String HBASE_CLIENT_PAUSE

General client pause value. Used mostly as value to wait before running a retry of a failed get, region lookup, etc.

See Also:

Constant Field Values

conf

protected static org.apache.hadoop.hbase.HBaseConfiguration conf

Constructor Detail

WikittyHBaseUtil

public WikittyHBaseUtil()

Method Detail

getHBaseConfiguration

public static org.apache.hadoop.hbase.HBaseConfiguration getHBaseConfiguration()

toBytes

public static byte[] toBytes(Object obj)

Convert any object serializale to byte array

fromBytes

public static Object fromBytes(byte[] obj)

Convert any byte array to object

toBytes

public static byte[] toBytes(FieldType field,
                             Object o)

Convert object to byte[] representation - boolean representation use 0 for false and 1 for true - BigDecimal use String representation

Parameters:

field - used to determinate type of o

o -

Returns:

fromBytes

public static Object fromBytes(FieldType field,
                               byte[] b)