/*
* 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.spi.persistence;
import java.io.Serializable;
/**
* A repository allowing to preserve state in the context of a {@link org.ehcache.Cache}.
*/
public interface StateRepository {
/**
* Gets a named state holder rooted in the current {@code StateRepository}.
* <p>
* If the state holder existed already, it is returned with its content fully available.
*
* @param name the state holder name
* @param keyClass concrete key type
* @param valueClass concrete value type
* @param <K> the key type, must be {@code Serializable}
* @param <V> the value type, must be {@code Serializable}
* @return a state holder
*/
<K extends Serializable, V extends Serializable> StateHolder<K, V> getPersistentStateHolder(String name, Class<K> keyClass, Class<V> valueClass);
}