net.segoia.util.persistence.DataExchangeHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of commons Show documentation

Various Java Utils

The newest version!

/**
 * commons - Various Java Utils
 * Copyright (C) 2009  Adrian Cristian Ionescu - https://github.com/acionescu
 *
 * 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 net.segoia.util.persistence;

public interface DataExchangeHandler {
    /**
     * Stores a value in the cache and returns the associated key 
     * by which this value can be retrieved afterwords
     * @param value
     * @return
     */
    String writeValue(Object value);
    
    /**
     * Returns the value associated with the specified key
     * null if none exists
     * @param key
     * @return
     */
    Object getValue(String key);
}