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A set of utilities for Java

There is a newer version: 3.0.0

package org.rx.io;

import lombok.EqualsAndHashCode;
import lombok.RequiredArgsConstructor;
import lombok.ToString;

import java.io.Serializable;

public interface KeyIndexer extends AutoCloseable {
    @RequiredArgsConstructor
    @EqualsAndHashCode
    @ToString
    class KeyEntity implements Serializable {
        private static final long serialVersionUID = -725164142563152444L;
        final TK key;
        long logPosition;
    }

    KeyEntity newKey(TK key);

    void save(KeyEntity key);

    KeyEntity find(TK k);

    void clear();
}