org.ehcache.config.ResourcePool Maven / Gradle / Ivy

Go to download
/*
 * Copyright Terracotta, Inc.
 *
 * 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 org.ehcache.config;

/**
 * Specifies a resource providing space for cache operations.
 * 
 * {@code ResourcePool} implementations must be immutable.
 */
public interface ResourcePool {

  /**
   * Get the type of the tracked resource.
   *
   * @return the type.
   */
  ResourceType getType();

  /**
   * Whether the underlying resource is persistent.
   *
   * @return true, if persistent
   */
  boolean isPersistent();

  /**
   * Validates whether or not a new {@code ResourcePool} can replace this {@code ResourcePool}.
   *
   * @param newPool the pool which is the candidate for replacing this {@code ResourcePool}
   *
   * @throws IllegalArgumentException if {@code newPool} is not a valid replacement for this {@code ResourcePool}
   */
  void validateUpdate(ResourcePool newPool);

}