public class DBPersistenceManager extends Object implements PersistenceManager
Constructor and Description |
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DBPersistenceManager(InputStream input)
Duplicate constructor allowing inputstream
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DBPersistenceManager(String filename)
Default construct
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Modifier and Type | Method and Description |
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void |
clear()
Clears the key-cache as well as all entries
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protected void |
init(InputStream in)
used to initialize complete DB access.
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Serializable |
remove(Serializable key)
Removes existing entry.
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Map |
retrieveAll()
Used to retrieve the persisted map back to its last known state
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void |
save(Serializable key,
Serializable val)
Saves NV pair as serializable object;
creates if new, stores new state if already exists.
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void |
saveAll(Map map)
Saves all row entries for the map to DB.
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void |
shutDown()
Shutting down the database cleanly
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protected final Log log
public DBPersistenceManager(String filename) throws Exception
filename
- absolute filepathException;
Exception
public DBPersistenceManager(InputStream input) throws Exception
input
- Exception
protected void init(InputStream in) throws Exception
in
- Exception;
Exception
public void save(Serializable key, Serializable val) throws CannotPersistException
save
in interface PersistenceManager
key
- val
- CannotPersistException;
CannotPersistException
public Serializable remove(Serializable key) throws CannotRemoveException
remove
in interface PersistenceManager
key
- CannotRemoveException;
CannotRemoveException
public void saveAll(Map map) throws CannotPersistException
saveAll
in interface PersistenceManager
map
- CannotPersistException;
CannotPersistException
public Map retrieveAll() throws CannotRetrieveException
retrieveAll
in interface PersistenceManager
CannotRetrieveException;
CannotRetrieveException
public void clear() throws CannotRemoveException
clear
in interface PersistenceManager
CannotRemoveException;
CannotRemoveException
public void shutDown()
shutDown
in interface PersistenceManager
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