Store.java

/**
 * Copyright 2014 Confluent Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.confluent.kafka.schemaregistry.storage;

import java.util.Iterator;
import java.util.Map;

import io.confluent.kafka.schemaregistry.storage.exceptions.StoreException;
import io.confluent.kafka.schemaregistry.storage.exceptions.StoreInitializationException;

public interface Store<K, V> {

  public void init() throws StoreInitializationException;

  public V get(K key) throws StoreException;

  public void put(K key, V value) throws StoreException;

  /**
   * Iterator over keys in the specified range
   *
   * @param key1 If key1 is null, start from the first key in sorted order
   * @param key2 If key2 is null, end at the last key
   * @return Iterator over keys in the half-open interval [key1, key2). If both keys are null,
   *     return an iterator over all keys in the database
   */
  public Iterator<V> getAll(K key1, K key2) throws StoreException;

  public void putAll(Map<K, V> entries) throws StoreException;

  public void delete(K key) throws StoreException;

  public Iterator<K> getAllKeys() throws StoreException;

  public void close();
}