Android Open Source - Android-Universal-Image-Loader Memory Cache

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The source code is released under:

Apache License

Java Source Code

/*******************************************************************************
 * Copyright 2014 Sergey Tarasevich/*  w  w  w.j  a  va 2 s .c  o  m*/
 *
 * 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 com.nostra13.universalimageloader.cache.memory;

import android.graphics.Bitmap;

import java.util.Collection;

/**
 * Interface for memory cache
 *
 * @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
 * @since 1.9.2
 */
public interface MemoryCache {
  /**
   * Puts value into cache by key
   *
   * @return <b>true</b> - if value was put into cache successfully, <b>false</b> - if value was <b>not</b> put into
   * cache
   */
  boolean put(String key, Bitmap value);

  /** Returns value by key. If there is no value for key then null will be returned. */
  Bitmap get(String key);

  /** Removes item by key */
  Bitmap remove(String key);

  /** Returns all keys of cache */
  Collection<String> keys();

  /** Remove all items from cache */
  void clear();
}

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