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/src/main/java/com/google/ie/business/dao/BaseDao.java

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Java | 36 lines | 4 code | 5 blank | 27 comment | 0 complexity | f4e08bfb5a11c555e89a4a809a8e06a7 MD5 | raw file
 1/* Copyright 2010 Google Inc.
 2 * 
 3 * Licensed under the Apache License, Version 2.0 (the "License");
 4 * you may not use this file except in compliance with the License.
 5 * You may obtain a copy of the License at
 6 * 
 7 *      http://www.apache.org/licenses/LICENSE-2.0
 8 * 
 9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS.
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License
14 */
15
16package com.google.ie.business.dao;
17
18/**
19 * A data access object specification base class for all data access objects
20 * that use JDO to interact with the datastore.
21 * 
22 * @author Charanjeet singh
23 */
24public interface BaseDao {
25
26    /**
27     * Finds entity by primary key.
28     * 
29     * @param clazz the class of the entity to be fetched
30     * @param key the key of the entity
31     * 
32     */
33    <T> T findEntityByPrimaryKey(java.lang.Class<T> clazz, String key);
34
35}
36