xdi2.core.impl.keyvalue

Interface KeyValueStore

All Known Implementing Classes:

AbstractKeyValueStore, BDBKeyValueStore, MapKeyValueStore, PropertiesKeyValueStore

public interface KeyValueStore

The key/value based graph storage implementations needs a KeyValueStore to function. This defines basic operations on a key/value pair based datastore.

Author:

markus

Method Summary

Modifier and Type	Method and Description
void	beginTransaction()
void	clear()
void	close()
void	commitTransaction()
boolean	contains(String key)
boolean	contains(String key, String value)
long	count(String key)
void	delete(String key)
void	delete(String key, String value)
Iterator<String>	getAll(String key)
String	getOne(String key)
void	init()
void	replace(String key, String value)
void	rollbackTransaction()
void	set(String key, String value)
boolean	supportsTransactions()

Method Detail

init

void init()
   throws IOException

Throws:

IOException

close

void close()

set

void set(String key,
         String value)

getOne

String getOne(String key)

getAll

Iterator<String> getAll(String key)

contains

boolean contains(String key)

contains

boolean contains(String key,
                 String value)

delete

void delete(String key)

delete

void delete(String key,
            String value)

replace

void replace(String key,
             String value)

count

long count(String key)

clear

void clear()

supportsTransactions

boolean supportsTransactions()

beginTransaction

void beginTransaction()

commitTransaction

void commitTransaction()

rollbackTransaction

void rollbackTransaction()