Package io.sockit.gameserver

Class LevelDbStore

java.lang.Object

io.sockit.gameserver.LevelDbStore

All Implemented Interfaces:

DataStore

public class LevelDbStore
extends Object
implements DataStore

An implementation of the DataStore interface which uses LevelDB to save/persist the Game Engine data.

Constructor Summary

Constructors

Constructor	Description
LevelDbStore(File dbFolder)
LevelDbStore(String dbFolder)

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the database
void	delete(byte[] key)	Deletes a value from the database
byte[]	get(byte[] key)	reads the value associated with the key from the database
DataIterator	iterator()	Returns a DataIterator whish iterates over all the entries in the dataStore
void	open()	Opens the database
void	put(byte[] key, byte[] value)	writes a value into the database

Methods inherited from class java.lang.Object

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

Constructor Details

LevelDbStore

public LevelDbStore(File dbFolder)

Parameters:

dbFolder - - the folder where the LevelDB data files are saved

LevelDbStore

public LevelDbStore(String dbFolder)

Parameters:

dbFolder - - the folder where the LevelDB data files are saved

Method Details

open

public void open() throws IOException

Opens the database

Specified by:

open in interface DataStore

Throws:

IOException - -

close

public void close() throws IOException

Closes the database

Specified by:

close in interface DataStore

Throws:

IOException - -

get

public byte[] get(byte[] key)

reads the value associated with the key from the database

Specified by:

get in interface DataStore

Parameters:

key - - the key whose value is to be read

Returns:

- the value associated with the key

put

public void put(byte[] key, byte[] value)

writes a value into the database

Specified by:

put in interface DataStore

Parameters:

key - - the key associated with the value

value - - the value to be written to the database

delete

public void delete(byte[] key)

Deletes a value from the database

Specified by:

delete in interface DataStore

Parameters:

key - - the key whose value is to be deleted

iterator

public DataIterator iterator()

Description copied from interface: DataStore

Returns a DataIterator whish iterates over all the entries in the dataStore

Specified by:

iterator in interface DataStore

Returns:

DataIterator - an iterator which iterates through entries in this Data Store