| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.gora.persistency; |
| |
| /** |
| * BeanFactory's enable contruction of keys and Persistent objects. |
| */ |
| public interface BeanFactory<K, T extends Persistent> { |
| |
| /** |
| * Constructs a new instance of the key class |
| * @return a new instance of the key class |
| */ |
| K newKey() throws Exception; |
| |
| /** |
| * Constructs a new instance of the Persistent class |
| * @return a new instance of the Persistent class |
| */ |
| T newPersistent(); |
| |
| /** |
| * Returns an instance of the key object to be |
| * used to access static fields of the object. Returned object MUST |
| * be treated as read-only. No fields other than the static fields |
| * of the object should be assumed to be readable. |
| * @return a cached instance of the key object |
| */ |
| K getCachedKey(); |
| |
| /** |
| * Returns an instance of the {@link Persistent} object to be |
| * used to access static fields of the object. Returned object MUST |
| * be treated as read-only. No fields other than the static fields |
| * of the object should be assumed to be readable. |
| * @return a cached instance of the Persistent object |
| */ |
| T getCachedPersistent(); |
| |
| /** |
| * Returns the key class |
| * @return the key class |
| */ |
| Class<K> getKeyClass(); |
| |
| /** |
| * Returns the persistent class |
| * @return the persistent class |
| */ |
| Class<T> getPersistentClass(); |
| |
| } |