org.jgroups.persistence

Class DBPersistenceManager

public class DBPersistenceManager extends Object implements PersistenceManager

Class will be utilized

Field Summary
protected Log	log

Constructor Summary
	DBPersistenceManager(String filename) Default construct
	DBPersistenceManager(InputStream input) Duplicate constructor allowing inputstream

Method Summary
void	clear() Clears the key-cache as well as all entries
protected void	init(InputStream in) used to intitiailize complete DB access.
Serializable	remove(Serializable key) Removes existing entry.
Map	retrieveAll() Used to retrieve the persisted map back to its last known state
void	save(Serializable key, Serializable val) Saves NV pair as serializable object; creates if new, stores new state if already exists.
void	saveAll(Map map) Saves all row entries for the map to DB.
void	shutDown() Shutting down the database cleanly

Field Detail

log

protected final Log log

Constructor Detail

DBPersistenceManager

public DBPersistenceManager(String filename)

Default construct

Parameters: filename absolute filepath

Throws: Exception;

DBPersistenceManager

public DBPersistenceManager(InputStream input)

Duplicate constructor allowing inputstream

Parameters: input

Throws: Exception

Method Detail

clear

public void clear()

Clears the key-cache as well as all entries

Throws: CannotRemoveException;

init

protected void init(InputStream in)

used to intitiailize complete DB access. THis method will use existing database to create schema (if it doesnt exist) and get PersistenceManager in usable condition

Parameters: in

Throws: Exception;