/*
 * 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.filter;

import java.io.IOException;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.filter.Filter;

/**
 * This filter overrides the behavior of delegate so that we do not jump to the next column as soon
 * as we find a value for a column but rather include all versions which is needed for rebuilds.
 */
public class AllVersionsIndexRebuildFilter extends DelegateFilter {

  public AllVersionsIndexRebuildFilter(Filter originalFilter) {
    super(originalFilter);
  }

  // No @Override for HBase 3 compatibility
  public ReturnCode filterKeyValue(Cell v) throws IOException {
    return filterCell(v);
  }

  @Override
  public ReturnCode filterCell(Cell v) throws IOException {
    ReturnCode delegateCode = super.filterCell(v);
    if (delegateCode == ReturnCode.INCLUDE_AND_NEXT_COL) {
      return ReturnCode.INCLUDE;
    } else {
      return delegateCode;
    }
  }
}
