/FileExtraction/Java_unseen/AnyObject_OAT/src/OAT/trading/Calculator.java
/*
    Open Auto Trading : A fully automatic equities trading platform with machine learning capabilities
    Copyright (C) 2015 AnyObject Ltd.

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package OAT.trading;

import java.util.List;
import OAT.data.Bar;

/**
 *
 * @author Antonio Yip
 */
public interface Calculator extends DataRequirer {

    /**
     * Is active.
     *
     * @return
     */
    public boolean isActive();

    /**
     * Get trend.
     *
     * @return
     */
    public Trend getTrend();

    /**
     * Calculate long and short positions.
     *
     * @param descendingBars 
     * @return
     */
    public Side trigger(List<Bar> descendingBars);

    /**
     * Update indicators/triggers.
     *
     * @param descendingBars 
     */
    public void update(List<Bar> descendingBars);
}
