001/**
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements.  See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing, software
013 *  distributed under the License is distributed on an "AS IS" BASIS,
014 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 *  See the License for the specific language governing permissions and
016 *  limitations under the License.
017 */
018package org.apache.xbean.recipe;
019
020public interface Repository {
021    /**
022     * Does this repository contain a object with the specified name.
023     *
024     * @param name the unique name of the object instance
025     * @return true if this repository contain a object with the specified name
026     */
027    boolean contains(String name);
028
029    /**
030     * Gets the object or recipe with the specified name from the repository.
031     *
032     * @param name the unique name of the object instance
033     * @return the object instance, a recipe to build the object or null
034     */
035    Object get(String name);
036
037    /**
038     * Add an object to the repository.
039     *
040     * @param name the unique name of the object instance
041     * @param object the object instance
042     * @throws ConstructionException if another object instance is already registered with the name
043     */
044    void add(String name, Object object);
045}