lucene/spatial-extras/src/java/org/apache/lucene/spatial/prefix/tree/SingletonCellIterator.java

/*
 * 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.lucene.spatial.prefix.tree;

/**
 * A singleton (one Cell) instance of CellIterator.
 *
 * @lucene.internal
 */
class SingletonCellIterator extends CellIterator {

  SingletonCellIterator(Cell cell) {
    this.nextCell = cell;//preload nextCell
  }

  @Override
  public boolean hasNext() {
    thisCell = null;
    return nextCell != null;
  }

}