/*
 * Copyright (C) 2013 Square, 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 okhttp3.internal.cache;

import java.io.IOException;
import okhttp3.Request;
import okhttp3.Response;

OkHttp's internal cache interface. Applications shouldn't implement this: instead use Cache. /**
 * OkHttp's internal cache interface. Applications shouldn't implement this: instead use {@link
 * okhttp3.Cache}.
 */
public interface InternalCache {
  Response get(Request request) throws IOException;

  CacheRequest put(Response response) throws IOException;

  
Remove any cache entries for the supplied request. This is invoked when the client invalidates the cache, such as when making POST requests. /**
   * Remove any cache entries for the supplied {@code request}. This is invoked when the client
   * invalidates the cache, such as when making POST requests.
   */
  void remove(Request request) throws IOException;

  
Handles a conditional request hit by updating the stored cache response with the headers from network. The cached response body is not updated. If the stored response has changed since cached was returned, this does nothing. /**
   * Handles a conditional request hit by updating the stored cache response with the headers from
   * {@code network}. The cached response body is not updated. If the stored response has changed
   * since {@code cached} was returned, this does nothing.
   */
  void update(Response cached, Response network);

  
Track an conditional GET that was satisfied by this cache. /** Track an conditional GET that was satisfied by this cache. */
  void trackConditionalCacheHit();

  
Track an HTTP response being satisfied with cacheStrategy. /** Track an HTTP response being satisfied with {@code cacheStrategy}. */
  void trackResponse(CacheStrategy cacheStrategy);
}