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.asterix.om.lazy;
  
  import org.apache.asterix.om.types.ATypeTag;
  import org.apache.asterix.om.types.AbstractCollectionType;
  import org.apache.asterix.om.types.IAType;
  import org.apache.asterix.om.utils.NonTaggedFormatUtil;
  import org.apache.hyracks.api.exceptions.HyracksDataException;
  
  /**
   * This implementation is only for closed {@link ATypeTag#ARRAY} and {@link ATypeTag#MULTISET} with fixed-length
   * items.
   */
  public class FixedListLazyVisitablePointable extends AbstractListLazyVisitablePointable {
      private final int itemSize;
  
      public FixedListLazyVisitablePointable(boolean tagged, AbstractCollectionType listType) {
          super(tagged, listType);
          ATypeTag itemTag = listType.getItemType().getTypeTag();
          currentChildTypeTag = itemTag.serialize();
          try {
              itemSize = NonTaggedFormatUtil.getFieldValueLength(null, -1, itemTag, false);
          } catch (HyracksDataException e) {
              throw new IllegalStateException(e);
          }
  
      }
  
      @Override
      public void nextChild() {
          byte[] data = getByteArray();
          int itemOffset = itemsOffset + currentIndex * itemSize;
          currentValue.set(data, itemOffset, itemSize);
          currentIndex++;
      }
  
      @Override
      public boolean isTaggedChild() {
          return false;
      }
  
      @Override
      AbstractLazyVisitablePointable createVisitablePointable(IAType itemType) {
          return createVisitable(itemType);
      }
  }
  