org.boon.slumberdb.base

Class BaseStringStringKeyValueStore<K,V>

java.lang.Object

org.boon.slumberdb.base.BaseStringStringKeyValueStore<K,V>

public class BaseStringStringKeyValueStore<K,V>
extends Object

Created by Richard on 4/9/14.

Field Summary

Fields

Modifier and Type	Field and Description
protected Function<String,K>	keyObjectConverter
protected Function<K,String>	keySerializer
protected KeyValueStore<String,String>	store Store that does the actual writing to DB (likely).
protected Function<String,V>	valueObjectConverter
protected Function<V,String>	valueSerializer

Constructor Summary

Constructors

Constructor and Description
BaseStringStringKeyValueStore(KeyValueStore<String,String> store)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Close the store.
boolean	isClosed()
boolean	isOpen()
V	load(K key) Get a value from the key value store.
KeyValueIterable<K,V>	loadAll() Load all of the key / values from the store.
Map<K,V>	loadAllByKeys(Collection<K> keys)
Collection<K>	loadAllKeys()
void	put(K key, V value) Put a value in the key/value store.
void	putAll(Map<K,V> values) Put all of these values in the key value store.
void	remove(K key) Remove a key from the store.
void	removeAll(Iterable<K> keys) Remove all of these values from the key value store.
KeyValueIterable<K,V>	search(K startKey) Search for a key in the key / value store.
protected K	toKeyObject(String key) Convert a binary array to a String.
protected String	toKeyString(K key) Convert a String key to bytes.
protected V	toValueObject(String value) Use serializer to read this byte array as an object.
protected String	toValueString(V v) Converts an object to a byte array.

Methods inherited from class java.lang.Object

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

Field Detail

store

protected final KeyValueStore<String,String> store

Store that does the actual writing to DB (likely).

keyObjectConverter

protected Function<String,K> keyObjectConverter

keySerializer

protected Function<K,String> keySerializer

valueObjectConverter

protected Function<String,V> valueObjectConverter

valueSerializer

protected Function<V,String> valueSerializer

Constructor Detail

BaseStringStringKeyValueStore

public BaseStringStringKeyValueStore(KeyValueStore<String,String> store)

Method Detail

remove

public void remove(K key)

Remove a key from the store.

Parameters:

key -

search

public KeyValueIterable<K,V> search(K startKey)

Search for a key in the key / value store.

Parameters:

startKey -

Returns:

loadAll

public KeyValueIterable<K,V> loadAll()

Load all of the key / values from the store.

Returns:

loadAllKeys

public Collection<K> loadAllKeys()

load

public V load(K key)

Get a value from the key value store.

Parameters:

key - key

Returns:

loadAllByKeys

public Map<K,V> loadAllByKeys(Collection<K> keys)

close

public void close()

Close the store.

toKeyObject

protected K toKeyObject(String key)

Convert a binary array to a String.

Parameters:

key - key

Returns:

toValueObject

protected V toValueObject(String value)

Use serializer to read this byte array as an object.

Parameters:

value - value read

Returns:

new object read from key/value store

toValueString

protected String toValueString(V v)

Converts an object to a byte array.

Parameters:

v - object to convert

Returns:

byte array representation of object.

toKeyString

protected String toKeyString(K key)

Convert a String key to bytes.

Parameters:

key - key to convert

Returns:

value

put

public void put(K key,
       V value)

Put a value in the key/value store.

Parameters:

key - key

value - value

putAll

public void putAll(Map<K,V> values)

Put all of these values in the key value store.

Parameters:

values - values

removeAll

public void removeAll(Iterable<K> keys)

Remove all of these values from the key value store.

Parameters:

keys -

isOpen

public boolean isOpen()

isClosed

public boolean isClosed()