001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019 package org.apache.hadoop.record.meta;
020
021 import java.io.IOException;
022
023 import org.apache.hadoop.classification.InterfaceAudience;
024 import org.apache.hadoop.classification.InterfaceStability;
025 import org.apache.hadoop.record.RecordOutput;
026
027 /**
028 * Represents typeID for vector.
029 * @deprecated Replaced by <a href="http://hadoop.apache.org/avro/">Avro</a>.
030 */
031 @Deprecated
032 @InterfaceAudience.Public
033 @InterfaceStability.Stable
034 public class VectorTypeID extends TypeID {
035 private TypeID typeIDElement;
036
037 public VectorTypeID(TypeID typeIDElement) {
038 super(RIOType.VECTOR);
039 this.typeIDElement = typeIDElement;
040 }
041
042 public TypeID getElementTypeID() {
043 return this.typeIDElement;
044 }
045
046 @Override
047 void write(RecordOutput rout, String tag) throws IOException {
048 rout.writeByte(typeVal, tag);
049 typeIDElement.write(rout, tag);
050 }
051
052 /**
053 * Two vector typeIDs are equal if their constituent elements have the
054 * same type
055 */
056 @Override
057 public boolean equals(Object o) {
058 if (!super.equals (o))
059 return false;
060
061 VectorTypeID vti = (VectorTypeID) o;
062 return this.typeIDElement.equals(vti.typeIDElement);
063 }
064
065 /**
066 * We use a basic hashcode implementation, since this class will likely not
067 * be used as a hashmap key
068 */
069 @Override
070 public int hashCode() {
071 return 37*17+typeIDElement.hashCode();
072 }
073
074 }