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.carbondata.core.datastore.page.encoding;
  
  import java.io.IOException;
  import java.util.BitSet;
  
  import org.apache.carbondata.core.datastore.ReusableDataBuffer;
  import org.apache.carbondata.core.datastore.page.ColumnPage;
  import org.apache.carbondata.core.scan.result.vector.ColumnVectorInfo;
  
  public interface ColumnPageDecoder {
  
    /**
     * Apply decoding algorithm on input byte array and return decoded column page
     */
    ColumnPage decode(byte[] input, int offset, int length) throws IOException;
  
    /**
     *  Apply decoding algorithm on input byte array and fill the vector here.
     */
    void decodeAndFillVector(byte[] input, int offset, int length, ColumnVectorInfo vectorInfo,
        BitSet nullBits, boolean isLVEncoded, int pageSize, ReusableDataBuffer reusableDataBuffer);
  
    ColumnPage decode(byte[] input, int offset, int length, boolean isLVEncoded) throws IOException;
  }
  