content: /*
   * 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.beam.sdk.values;
  
  import java.util.List;
  import org.apache.beam.sdk.schemas.Schema;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /** Concrete subclass of {@link Row} that explicitly stores all fields of the row. */
  public class RowWithStorage extends Row {
    private final List<@Nullable Object> values;
  
    RowWithStorage(Schema schema, List<@Nullable Object> values) {
      super(schema);
      this.values = values;
    }
  
    @Override
    @SuppressWarnings("TypeParameterUnusedInFormals")
    public <T extends @Nullable Object> T getValue(int fieldIdx) {
      if (values.size() > fieldIdx) {
        return (T) values.get(fieldIdx);
      } else {
        throw new IllegalArgumentException("No field at index " + fieldIdx);
      }
    }
  
    @Override
    public List<@Nullable Object> getValues() {
      return values;
    }
  
    @Override
    public int getFieldCount() {
      return values.size();
    }
  }
  