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     */
018    package org.apache.xbean.recipe;
019    
020    public 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    }