1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.giraph.io.gora.utils; 19 20 import org.apache.gora.store.DataStore; 21 22 /** 23 * Class used to convert strings into more complex keys. 24 */ 25 public abstract class KeyFactory { 26 27 /** 28 * Data store used for creating a new key. 29 */ 30 private DataStore dataStore; 31 32 /** 33 * Builds a key from a string parameter. 34 * @param keyString the key object as a string. 35 * @return the key object. 36 */ 37 public abstract Object buildKey(String keyString); 38 39 /** 40 * Gets the data store used in this factory. 41 * @return the dataStore 42 */ 43 public DataStore getDataStore() { 44 return dataStore; 45 } 46 47 /** 48 * Sets the data store used in this factory. 49 * @param dataStore the dataStore to set 50 */ 51 public void setDataStore(DataStore dataStore) { 52 this.dataStore = dataStore; 53 } 54 }