Package com.gengoai.kv

Class AbstractKeyValueStore<K,V>

java.lang.Object

com.gengoai.kv.AbstractKeyValueStore<K,V>

Type Parameters:

K - the type parameter

V - the type parameter

All Implemented Interfaces:

KeyValueStore<K,V>, Serializable, AutoCloseable, Map<K,V>

Direct Known Subclasses:

AbstractNavigableKeyValueStore, InMemoryKeyValueStore

public abstract class AbstractKeyValueStore<K,V>
extends Object
implements KeyValueStore<K,V>, Serializable

The type Abstract navigable key value store.

Author:

David B. Bracewell

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K extends Object,V extends Object>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractKeyValueStore(String namespace, boolean readOnly)	Instantiates a new Abstract navigable key value store.

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(Object o)
boolean	containsValue(Object o)
protected abstract Map<K,V>	delegate()	Delegate navigable map.
Set<Map.Entry<K,V>>	entrySet()
V	get(Object o)
String	getNameSpace()	Gets the namespace of the key-value store
boolean	isEmpty()
boolean	isReadOnly()	Is this key-value store read-only?
Set<K>	keySet()
V	put(K k, V v)
void	putAll(Map<? extends K,? extends V> map)
V	remove(Object o)
int	size()
long	sizeAsLong()	Gets the number of keys in the store as a long
Collection<V>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.AutoCloseable

close

Methods inherited from interface com.gengoai.kv.KeyValueStore

commit

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

AbstractKeyValueStore

protected AbstractKeyValueStore(String namespace,
                                boolean readOnly)

Instantiates a new Abstract navigable key value store.

Parameters:

namespace - the namespace

readOnly - the read only

Method Detail

clear

public void clear()

Specified by:

clear in interface Map<K,V>

containsKey

public boolean containsKey(Object o)

Specified by:

containsKey in interface Map<K,V>

containsValue

public boolean containsValue(Object o)

Specified by:

containsValue in interface Map<K,V>

delegate

protected abstract Map<K,V> delegate()

Delegate navigable map.

Returns:

the navigable map

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

get

public V get(Object o)

Specified by:

get in interface Map<K,V>

getNameSpace

public String getNameSpace()

Description copied from interface: KeyValueStore

Gets the namespace of the key-value store

Specified by:

getNameSpace in interface KeyValueStore<K,V>

Returns:

the name space

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

isReadOnly

public boolean isReadOnly()

Description copied from interface: KeyValueStore

Is this key-value store read-only?

Specified by:

isReadOnly in interface KeyValueStore<K,V>

Returns:

True - read only, False - writeable

keySet

public Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

put

public V put(K k,
             V v)

Specified by:

put in interface Map<K,V>

putAll

public void putAll(Map<? extends K,? extends V> map)

Specified by:

putAll in interface Map<K,V>

remove

public V remove(Object o)

Specified by:

remove in interface Map<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

sizeAsLong

public long sizeAsLong()

Description copied from interface: KeyValueStore

Gets the number of keys in the store as a long

Specified by:

sizeAsLong in interface KeyValueStore<K,V>

Returns:

the number of keys in the store

values

public Collection<V> values()

Specified by:

values in interface Map<K,V>