001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.filter;
019
020import java.io.IOException;
021import org.apache.hadoop.hbase.Cell;
022import org.apache.hadoop.hbase.exceptions.DeserializationException;
023
024public class FilterAllFilter extends FilterBase {
025
026  public FilterAllFilter() {
027  }
028
029  @Override
030  public ReturnCode filterCell(final Cell c) throws IOException {
031    return ReturnCode.SKIP;
032  }
033
034  @Override
035  public boolean hasFilterRow() {
036    return true;
037  }
038
039  @Override
040  public boolean filterRow() throws IOException {
041    return true;
042  }
043
044  @Override
045  public boolean filterRowKey(Cell cell) throws IOException {
046    return false;
047  }
048
049  public static FilterAllFilter parseFrom(final byte[] pbBytes) throws DeserializationException {
050    // No options to parse, so why bother
051    return new FilterAllFilter();
052  }
053
054  @Override
055  boolean areSerializedFieldsEqual(Filter o) {
056    if (o == this) return true;
057    if (!(o instanceof FilterAllFilter)) return false;
058
059    return true;
060  }
061}