| /* |
| * Copyright 2009-2012 by The Regents of the University of California |
| * Licensed 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 from |
| * |
| * 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 edu.uci.ics.hyracks.hdfs.api; |
| |
| import java.io.Serializable; |
| |
| import edu.uci.ics.hyracks.api.context.IHyracksTaskContext; |
| import edu.uci.ics.hyracks.api.exceptions.HyracksDataException; |
| |
| /** |
| * Users need to implement this interface to use the HDFSReadOperatorDescriptor. |
| * |
| * @param <K> |
| * the key type |
| * @param <V> |
| * the value type |
| */ |
| public interface IKeyValueParserFactory<K, V> extends Serializable { |
| |
| /** |
| * This method creates a key-value parser. |
| * |
| * @param ctx |
| * the IHyracksTaskContext |
| * @return a key-value parser instance. |
| */ |
| public IKeyValueParser<K, V> createKeyValueParser(IHyracksTaskContext ctx) throws HyracksDataException; |
| |
| } |