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.calcite.avatica.util;
  
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Implementation of {@link Cursor} on top of an
   * {@link java.util.Iterator} that
   * returns a {@link Map} for each row.
   *
   * <p>The Map contains (field, value) pairs.
   */
  public class MapIteratorCursor extends IteratorCursor<Map<String, Object>> {
    private final List<String> fieldNames;
  
    /**
     * Creates a MapIteratorCursor.
     *
     * @param iterator Iterator
     * @param fieldNames Field names to project
     */
    public MapIteratorCursor(Iterator<Map<String, Object>> iterator,
        List<String> fieldNames) {
      super(iterator);
      assert fieldNames != null;
      this.fieldNames = fieldNames;
    }
  
    protected Getter createGetter(int ordinal) {
      return new MapGetter<String>(fieldNames.get(ordinal));
    }
  }
  
  // End MapIteratorCursor.java
  