DoubleArrayTimeCache.java

/**
 * Copyright (C) 2010-14 diirt developers. See COPYRIGHT.TXT
 * All rights reserved. Use is subject to license terms. See LICENSE.TXT
 */
package org.diirt.datasource.extra;

import java.time.Instant;
import java.util.List;

import org.diirt.vtype.Display;
import org.diirt.util.array.ListNumber;


/**
 *
 * @author carcassi
 */
public interface DoubleArrayTimeCache {

    public interface Data {
        public Instant getBegin();

        public Instant getEnd();

        public int getNArrays();

        public ListNumber getArray(int index);

        public Instant getTimestamp(int index);
    }

    public Data getData(Instant begin, Instant end);

    /**
     * Each segment of the new data ends with an array of old data.
     * Two regions can be requested: an update region, where only updates
     * are going to be returned, and a new region, where all data is going to
     * be returned.
     *
     * @return the new data chunks
     */
    public List<Data> newData(Instant beginUpdate, Instant endUpdate, Instant beginNew, Instant endNew);

    public Display getDisplay();
}