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 *  Copyright (c) 2014-2019 Appsicle
 *  Copyright (c) 2019-2020 QuestDB
 *
 *  Licensed 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
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 *  http://www.apache.org/licenses/LICENSE-2.0
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 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
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package io.questdb.cairo;

import io.questdb.cairo.vm.AppendOnlyVirtualMemory;
import io.questdb.cairo.vm.ReadOnlyVirtualMemory;
import io.questdb.std.str.Path;

public interface ColumnIndexer {
    void distress();

    long getFd();

    long getSequence();

    void refreshSourceAndIndex(long loRow, long hiRow);

    void index(ReadOnlyVirtualMemory mem, long loRow, long hiRow);

    BitmapIndexWriter getWriter();

    boolean isDistressed();

    void configureFollowerAndWriter(CairoConfiguration configuration, Path path, CharSequence name, AppendOnlyVirtualMemory columnMem, long columnTop);

    void configureWriter(CairoConfiguration configuration, Path path, CharSequence name, long columnTop);

    void rollback(long maxRow);

    boolean tryLock(long expectedSequence);
}