/*
 * 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.phoenix.coprocessor;

import java.io.IOException;
import java.util.List;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.regionserver.RegionScanner;
import org.apache.hadoop.hbase.regionserver.ScannerContext;

public abstract class BaseRegionScanner extends DelegateRegionScanner {

  public BaseRegionScanner(RegionScanner delegate) {
    super(delegate);
  }

  @Override
  public boolean isFilterDone() {
    return false;
  }

  @Override
  public abstract boolean next(List<Cell> results) throws IOException;

  @Override
  public abstract boolean next(List<Cell> result, ScannerContext scannerContext) throws IOException;

  @Override
  public boolean reseek(byte[] row) throws IOException {
    throw new DoNotRetryIOException("Unsupported");
  }

  @Override
  public boolean nextRaw(List<Cell> result) throws IOException {
    return next(result);
  }

  @Override
  public boolean nextRaw(List<Cell> result, ScannerContext scannerContext) throws IOException {
    return next(result, scannerContext);
  }
}
