Android Open Source - picasso Memory Policy

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (C) 2015 Square, Inc./*from  w w  w.  j  a v  a 2  s  .c om*/
 *
 * 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.squareup.picasso;

/** Designates the policy to use when dealing with memory cache. */
@SuppressWarnings("PointlessBitwiseExpression")
public enum MemoryPolicy {

  /** Skips memory cache lookup when processing a request. */
  NO_CACHE(1 << 0),
  /**
   * Skips storing the final result into memory cache. Useful for one-off requests
   * to avoid evicting other bitmaps from the cache.
   */
  NO_STORE(1 << 1);

  static boolean shouldReadFromMemoryCache(int memoryPolicy) {
    return (memoryPolicy & MemoryPolicy.NO_CACHE.index) == 0;
  }

  static boolean shouldWriteToMemoryCache(int memoryPolicy) {
    return (memoryPolicy & MemoryPolicy.NO_STORE.index) == 0;
  }

  final int index;

  private MemoryPolicy(int index) {
    this.index = index;
  }
}

Java Source Code List

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