io.questdb.griffin.engine.analytic.AnalyticFunction Maven / Gradle / Ivy

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 * Copyright (C) 2014-2016 Appsicle
 *
 * This program is free software: you can redistribute it and/or  modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 *
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package io.questdb.griffin.engine.analytic;

import io.questdb.cairo.sql.AnalyticSPI;
import io.questdb.cairo.sql.Function;
import io.questdb.cairo.sql.Record;
import io.questdb.cairo.sql.RecordCursor;

public interface AnalyticFunction extends Function {
    int STREAM = 1;
    int TWO_PASS = 2;
    int THREE_PASS = 3;

    void pass1(Record record, long recordOffset, AnalyticSPI spi);

    void preparePass2(RecordCursor cursor);

    void pass2(Record record);

    void reset();

    void setColumnIndex(int columnIndex);
}