org.boon.slumberdb.KeyValueStore Maven / Gradle / Ivy
package org.boon.slumberdb;
import java.io.Closeable;
import java.util.Collection;
import java.util.Map;
/**
* A map like interface that represents a key value store.
* This is not a map. KeyValueStore can be closed and flushed.
*
* When you put(...) a value,
* it may return async so put does not return a value.
*
*/
public interface KeyValueStore extends Closeable {
/**
* Put a key
*
* @param key key
* @param value value
*/
void put(K key, V value);
/**
* Put all values.
*/
void putAll(Map values);
/**
* Remove all values
*/
void removeAll(Iterable keys);
/**
* Remove a single key.
*/
void remove(K key);
/**
* Search.
*/
KeyValueIterable search(K startKey);
/**
* Load All Values.
* This is good for in-memory caches that have some keys that
* are persistent.
*/
KeyValueIterable loadAll();
/**
* Load All keys.
*/
Collection loadAllKeys();
/*
* Get a value from the store.
*/
V load(K key);
/*
* Get key/values from the store based on keys.
*/
Map loadAllByKeys(Collection keys);
/*
* Close the connection to the database.
*/
void close();
public boolean isOpen();
public boolean isClosed();
}