execution/vectorized/Dictionary.java

0001 /*
0002  * Licensed to the Apache Software Foundation (ASF) under one or more
0003  * contributor license agreements.  See the NOTICE file distributed with
0004  * this work for additional information regarding copyright ownership.
0005  * The ASF licenses this file to You under the Apache License, Version 2.0
0006  * (the "License"); you may not use this file except in compliance with
0007  * the License.  You may obtain a copy of the License at
0008  *
0009  *    http://www.apache.org/licenses/LICENSE-2.0
0010  *
0011  * Unless required by applicable law or agreed to in writing, software
0012  * distributed under the License is distributed on an "AS IS" BASIS,
0013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0014  * See the License for the specific language governing permissions and
0015  * limitations under the License.
0016  */
0017
0018 package org.apache.spark.sql.execution.vectorized;
0019
0020 /**
0021  * The interface for dictionary in ColumnVector to decode dictionary encoded values.
0022  */
0023 public interface Dictionary {
0024
0025   int decodeToInt(int id);
0026
0027   long decodeToLong(int id);
0028
0029   float decodeToFloat(int id);
0030
0031   double decodeToDouble(int id);
0032
0033   byte[] decodeToBinary(int id);
0034 }