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MapDB provides concurrent Maps, Sets and Queues backed by disk storage or off-heap memory. It is a fast, scalable and easy to use embedded Java database.

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package org.mapdb.serializer;

import org.mapdb.DataInput2;
import org.mapdb.DataOutput2;
import org.mapdb.Serializer;

import java.io.IOException;
import java.util.Comparator;

/**
 * Created by jan on 2/29/16.
 */
public interface GroupSerializer extends Serializer {

    default A valueArrayBinaryGet(DataInput2 input, int keysLen, int pos) throws IOException {
        Object keys = valueArrayDeserialize(input, keysLen);
        return valueArrayGet(keys, pos);
//        A a=null;
//        while(pos-- >= 0){
//            a = deserialize(input, -1);
//        }
//        return a;
    }



    default int valueArrayBinarySearch(A key, DataInput2 input, int keysLen, Comparator comparator) throws IOException {
        Object keys = valueArrayDeserialize(input, keysLen);
        return valueArraySearch(keys, key, comparator);
//        for(int pos=0; pos