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.runtime.operators.joins.interval.utils.memory;
  
  import java.util.Iterator;
  
  import org.apache.hyracks.dataflow.std.buffermanager.ITuplePointerAccessor;
  import org.apache.hyracks.dataflow.std.structures.TuplePointer;
  
  public class TuplePointerCursor extends AbstractTupleCursor<Iterator<TuplePointer>> {
  
      Iterator<TuplePointer> iterator;
      TuplePointer tp;
  
      public TuplePointerCursor(ITuplePointerAccessor accessor) {
          this.accessor = accessor;
      }
  
      @Override
      public boolean hasNext() {
          return iterator.hasNext();
      }
  
      @Override
      public void next() {
          TuplePointer tp = iterator.next();
          this.tp = tp;
          tupleId = tp.getTupleIndex();
          ((ITuplePointerAccessor) accessor).reset(tp);
      }
  
      @Override
      public void reset(Iterator<TuplePointer> iterator) {
          this.iterator = iterator;
          tupleId = INITIALIZED;
      }
  
      public void remove() {
          iterator.remove();
      }
  
      public TuplePointer getTuplePointer() {
          return tp;
      }
  }
  