org.shoal.ha.cache.impl.store

Class DataStoreEntryUpdater<K,V>

java.lang.Object

org.shoal.ha.cache.impl.store.DataStoreEntryUpdater<K,V>

Direct Known Subclasses:

SimpleDataStoreEntryUpdater, SimpleStoreableDataStoreEntryUpdater, StoreableDataStoreEntryUpdater

public abstract class DataStoreEntryUpdater<K,V>
extends Object

Author:

Mahesh Kannan

Field Summary

Fields

Modifier and Type	Field and Description
protected static Logger	_logger
protected DataStoreContext<K,V>	ctx

Constructor Summary

Constructors

Constructor and Description
DataStoreEntryUpdater()

Method Summary

Modifier and Type	Method and Description
protected byte[]	captureState(V v)
abstract LoadResponseCommand<K,V>	createLoadResponseCommand(DataStoreEntry<K,V> entry, K k, long minVersion)
abstract SaveCommand<K,V>	createSaveCommand(DataStoreEntry<K,V> entry, K k, V v)
protected V	deserializeV(byte[] rawV)
abstract void	executeSave(DataStoreEntry<K,V> entry, SaveCommand<K,V> cmd)
abstract void	executeTouch(DataStoreEntry<K,V> entry, TouchCommand<K,V> cmd)
abstract V	extractVFrom(LoadResponseCommand<K,V> cmd)
abstract byte[]	getState(V v)
abstract V	getV(DataStoreEntry<K,V> entry)
void	initialize(DataStoreContext<K,V> ctx)
protected void	printEntryInfo(String msg, DataStoreEntry<K,V> entry, K key)
protected void	updateMetaInfoInDataStoreEntry(DataStoreEntry<K,V> entry, AbstractSaveCommand<K,V> cmd)

Methods inherited from class java.lang.Object

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

Field Detail

_logger

protected static final transient Logger _logger

ctx

protected DataStoreContext<K,V> ctx

Constructor Detail

DataStoreEntryUpdater

public DataStoreEntryUpdater()

Method Detail

initialize

public void initialize(DataStoreContext<K,V> ctx)

captureState

protected byte[] captureState(V v)
                       throws DataStoreException

Throws:

DataStoreException

deserializeV

protected V deserializeV(byte[] rawV)
                  throws DataStoreException

Throws:

DataStoreException

updateMetaInfoInDataStoreEntry

protected void updateMetaInfoInDataStoreEntry(DataStoreEntry<K,V> entry,
                                              AbstractSaveCommand<K,V> cmd)

printEntryInfo

protected void printEntryInfo(String msg,
                              DataStoreEntry<K,V> entry,
                              K key)

createSaveCommand

public abstract SaveCommand<K,V> createSaveCommand(DataStoreEntry<K,V> entry,
                                                   K k,
                                                   V v)

createLoadResponseCommand

public abstract LoadResponseCommand<K,V> createLoadResponseCommand(DataStoreEntry<K,V> entry,
                                                                   K k,
                                                                   long minVersion)
                                                            throws DataStoreException

Throws:

DataStoreException

executeSave

public abstract void executeSave(DataStoreEntry<K,V> entry,
                                 SaveCommand<K,V> cmd)
                          throws DataStoreException

Throws:

DataStoreException

executeTouch

public abstract void executeTouch(DataStoreEntry<K,V> entry,
                                  TouchCommand<K,V> cmd)
                           throws DataStoreException

Throws:

DataStoreException

getV

public abstract V getV(DataStoreEntry<K,V> entry)
                throws DataStoreException

Throws:

DataStoreException

extractVFrom

public abstract V extractVFrom(LoadResponseCommand<K,V> cmd)
                        throws DataStoreException

Throws:

DataStoreException

getState

public abstract byte[] getState(V v)
                         throws DataStoreException

Throws:

DataStoreException