content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * 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.google.android.exoplayer2.upstream.cache;
  
  
  /**
   * Evictor that doesn't ever evict cache files.
   *
   * Warning: Using this evictor might have unforeseeable consequences if cache
   * size is not managed elsewhere.
   */
  public final class NoOpCacheEvictor implements CacheEvictor {
  
    @Override
    public void onCacheInitialized() {
      // Do nothing.
    }
  
    @Override
    public void onStartFile(Cache cache, String key, long position, long maxLength) {
      // Do nothing.
    }
  
    @Override
    public void onSpanAdded(Cache cache, CacheSpan span) {
      // Do nothing.
    }
  
    @Override
    public void onSpanRemoved(Cache cache, CacheSpan span) {
      // Do nothing.
    }
  
    @Override
    public void onSpanTouched(Cache cache, CacheSpan oldSpan, CacheSpan newSpan) {
      // Do nothing.
    }
  
  }
  