io.ray.streaming.state.store

Interface KeyValueStore<K,V>

All Superinterfaces:

Serializable

All Known Subinterfaces:

KeyMapStore<K,S,T>

All Known Implementing Classes:

MemoryKeyMapStore, MemoryKeyValueStore

public interface KeyValueStore<K,V>
extends Serializable

Key Value Store interface.

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.

Method Detail

put

void put(K key,
         V value)
  throws IOException

put key value into store.

Throws:

IOException

get

V get(K key)
throws IOException

get value from store.

Throws:

IOException

remove

void remove(K key)
     throws IOException

remove key in the store.

Throws:

IOException

flush

void flush()
    throws IOException

flush to disk.

Throws:

IOException

clearCache

void clearCache()

clear all cache.

close

void close()
    throws IOException

close the store.

Throws:

IOException