xdi2.core.impl.keyvalue

Class AbstractKeyValueStore

java.lang.Object

xdi2.core.impl.keyvalue.AbstractKeyValueStore

All Implemented Interfaces:

KeyValueStore

Direct Known Subclasses:

BDBKeyValueStore, MapKeyValueStore, PropertiesKeyValueStore

public abstract class AbstractKeyValueStore
extends Object
implements KeyValueStore

This abstract base class relieves subclasses from certain tasks by implementing them using other more basic methods. The basic methods that still have to be implemented are: - put(key, value) - getAll(key, value) - delete(key, value) Subclasses are still encouraged to overwrite as many methods as possible for better performance.

Author:

markus

Constructor Summary

Constructors

Constructor and Description
AbstractKeyValueStore()

Method Summary

Modifier and Type	Method and Description
void	beginTransaction()
void	commitTransaction()
boolean	contains(String key)
boolean	contains(String key, String value)
long	count(String key)
void	delete(String key)
String	getOne(String key)
void	replace(String key, String value)
void	rollbackTransaction()
boolean	supportsTransactions()

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.impl.keyvalue.KeyValueStore

clear, close, delete, getAll, init, set

Constructor Detail

AbstractKeyValueStore

public AbstractKeyValueStore()

Method Detail

getOne

public String getOne(String key)

Specified by:

getOne in interface KeyValueStore

contains

public boolean contains(String key)

Specified by:

contains in interface KeyValueStore

contains

public boolean contains(String key,
                        String value)

Specified by:

contains in interface KeyValueStore

delete

public void delete(String key)

Specified by:

delete in interface KeyValueStore

replace

public void replace(String key,
                    String value)

Specified by:

replace in interface KeyValueStore

count

public long count(String key)

Specified by:

count in interface KeyValueStore

supportsTransactions

public boolean supportsTransactions()

Specified by:

supportsTransactions in interface KeyValueStore

beginTransaction

public void beginTransaction()

Specified by:

beginTransaction in interface KeyValueStore

commitTransaction

public void commitTransaction()

Specified by:

commitTransaction in interface KeyValueStore

rollbackTransaction

public void rollbackTransaction()

Specified by:

rollbackTransaction in interface KeyValueStore