src/main/java/freemarker/cache/ConcurrentCacheStorage.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 freemarker.cache;

/**
 * An optional interface for cache storage that knows whether it can be 
 * concurrently accessible without synchronization.
 */
public interface ConcurrentCacheStorage extends CacheStorage {
    
    /**
     * Returns true if this instance of cache storage is concurrently 
     * accessible from multiple threads without synchronization.
     * @return true if this instance of cache storage is concurrently 
     * accessible from multiple threads without synchronization.
     */
    public boolean isConcurrent();
}