| /* |
| * 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.pig.data; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.apache.pig.backend.executionengine.ExecException; |
| |
| /** |
| * A singleton Tuple type which is not picked up for writing by PigRecordWriter |
| */ |
| public class NonWritableTuple extends AbstractTuple { |
| |
| |
| public static final NonWritableTuple INSTANCE = new NonWritableTuple(); |
| |
| private NonWritableTuple(){} |
| |
| @Override |
| public int size() { |
| return 0; |
| } |
| |
| @Override |
| public Object get(int fieldNum) throws ExecException { |
| return null; |
| } |
| |
| @Override |
| public List<Object> getAll() { |
| throw new RuntimeException("Unimplemented"); |
| } |
| |
| @Override |
| public void set(int fieldNum, Object val) throws ExecException { |
| throw new ExecException("Unimplemented"); |
| } |
| |
| @Override |
| public void append(Object val) { |
| throw new RuntimeException("Unimplemented"); |
| } |
| |
| @Override |
| public long getMemorySize() { |
| throw new RuntimeException("Unimplemented"); |
| } |
| |
| @Override |
| public void readFields(DataInput arg0) throws IOException { |
| throw new IOException("Unimplemented"); |
| } |
| |
| @Override |
| public void write(DataOutput arg0) throws IOException { |
| throw new IOException("Unimplemented"); |
| } |
| |
| @Override |
| public int compareTo(Object o) { |
| throw new RuntimeException("Unimplemented"); |
| } |
| |
| } |