io.ray.streaming.state.store.impl

Class MemoryKeyValueStore<K,V>

java.lang.Object

io.ray.streaming.state.store.impl.MemoryKeyValueStore<K,V>

All Implemented Interfaces:

KeyValueStore<K,V>, Serializable

public class MemoryKeyValueStore<K,V>
extends Object
implements KeyValueStore<K,V>

Memory Key Value Store.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MemoryKeyValueStore()

Method Summary

Modifier and Type	Method and Description
void	clearCache() clear all cache.
void	close() close the store.
void	flush() flush to disk.
V	get(K key) get value from store.
void	put(K key, V value) put key value into store.
void	remove(K key) remove key in the store.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryKeyValueStore

public MemoryKeyValueStore()

Method Detail

put

public void put(K key,
                V value)
         throws IOException

Description copied from interface: KeyValueStore

put key value into store.

Specified by:

put in interface KeyValueStore<K,V>

Throws:

IOException

get

public V get(K key)
      throws IOException

Description copied from interface: KeyValueStore

get value from store.

Specified by:

get in interface KeyValueStore<K,V>

Throws:

IOException

remove

public void remove(K key)
            throws IOException

Description copied from interface: KeyValueStore

remove key in the store.

Specified by:

remove in interface KeyValueStore<K,V>

Throws:

IOException

flush

public void flush()
           throws IOException

Description copied from interface: KeyValueStore

flush to disk.

Specified by:

flush in interface KeyValueStore<K,V>

Throws:

IOException

clearCache

public void clearCache()

Description copied from interface: KeyValueStore

clear all cache.

Specified by:

clearCache in interface KeyValueStore<K,V>

close

public void close()
           throws IOException

Description copied from interface: KeyValueStore

close the store.

Specified by:

close in interface KeyValueStore<K,V>

Throws:

IOException