sql/vectorized/ColumnarMap.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.vectorized;
0019
0020 import org.apache.spark.sql.catalyst.util.MapData;
0021
0022 /**
0023  * Map abstraction in {@link ColumnVector}.
0024  */
0025 public final class ColumnarMap extends MapData {
0026   private final ColumnarArray keys;
0027   private final ColumnarArray values;
0028   private final int length;
0029
0030   public ColumnarMap(ColumnVector keys, ColumnVector values, int offset, int length) {
0031     this.length = length;
0032     this.keys = new ColumnarArray(keys, offset, length);
0033     this.values = new ColumnarArray(values, offset, length);
0034   }
0035
0036   @Override
0037   public int numElements() { return length; }
0038
0039   @Override
0040   public ColumnarArray keyArray() {
0041     return keys;
0042   }
0043
0044   @Override
0045   public ColumnarArray valueArray() {
0046     return values;
0047   }
0048
0049   @Override
0050   public ColumnarMap copy() {
0051     throw new UnsupportedOperationException();
0052   }
0053 }