1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one |
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3 | * or more contributor license agreements. See the NOTICE file |
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4 | * distributed with this work for additional information |
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5 | * regarding copyright ownership. The ASF licenses this file |
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6 | * to you under the Apache License, Version 2.0 (the |
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7 | * "License"); you may not use this file except in compliance |
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8 | * with the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | |
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19 | package org.apache.hadoop.record.meta; |
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20 | |
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21 | import java.io.IOException; |
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22 | |
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23 | import org.apache.hadoop.record.RecordOutput; |
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24 | |
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25 | /** |
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26 | * Represents typeID for vector. |
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27 | */ |
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28 | public class VectorTypeID extends TypeID { |
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29 | private TypeID typeIDElement; |
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30 | |
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31 | public VectorTypeID(TypeID typeIDElement) { |
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32 | super(RIOType.VECTOR); |
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33 | this.typeIDElement = typeIDElement; |
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34 | } |
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35 | |
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36 | public TypeID getElementTypeID() { |
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37 | return this.typeIDElement; |
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38 | } |
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39 | |
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40 | void write(RecordOutput rout, String tag) throws IOException { |
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41 | rout.writeByte(typeVal, tag); |
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42 | typeIDElement.write(rout, tag); |
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43 | } |
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44 | |
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45 | /** |
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46 | * Two vector typeIDs are equal if their constituent elements have the |
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47 | * same type |
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48 | */ |
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49 | public boolean equals(Object o) { |
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50 | if (!super.equals (o)) |
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51 | return false; |
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52 | |
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53 | VectorTypeID vti = (VectorTypeID) o; |
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54 | return this.typeIDElement.equals(vti.typeIDElement); |
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55 | } |
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56 | |
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57 | /** |
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58 | * We use a basic hashcode implementation, since this class will likely not |
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59 | * be used as a hashmap key |
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60 | */ |
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61 | public int hashCode() { |
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62 | return 37*17+typeIDElement.hashCode(); |
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63 | } |
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64 | |
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65 | } |
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