001    /*
002     * Copyright (c) 2007-2015 Concurrent, Inc. All Rights Reserved.
003     *
004     * Project and contact information: http://www.cascading.org/
005     *
006     * This file is part of the Cascading project.
007     *
008     * Licensed under the Apache License, Version 2.0 (the "License");
009     * you may not use this file except in compliance with the License.
010     * You may obtain a copy of the License at
011     *
012     *     http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing, software
015     * distributed under the License is distributed on an "AS IS" BASIS,
016     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017     * See the License for the specific language governing permissions and
018     * limitations under the License.
019     */
020    
021    package cascading.util.cache;
022    
023    import java.util.Map;
024    
025    /**
026     * Interface that defines a Cache.
027     */
028    public interface CascadingCache<Key, Value> extends Map<Key, Value>
029      {
030      /** Method to initialize the Cache. Any setup should be done in here. */
031      void initialize();
032    
033      /** Sets the capacity of the Cache. */
034      void setCapacity( int capacity );
035    
036      /**
037       * Returns the capacity of this cache.
038       */
039      int getCapacity();
040    
041      /** Sets the {@link CacheEvictionCallback} of this Cache. */
042      void setCacheEvictionCallback( CacheEvictionCallback cacheEvictionCallback );
043      }