win.doyto.query.service.AssociativeService Maven / Gradle / Ivy

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package win.doyto.query.service;

import java.util.Collection;
import java.util.List;

import static java.util.Collections.singleton;

/**
 * AssociativeService
 *
 * @author f0rb on 2019-05-30
 */
public interface AssociativeService {

    List getByLeftId(L leftId);

    void deleteByLeftId(L leftId);

    List getByRightId(R rightId);

    void deleteByRightId(R rightId);

    boolean exists(Collection leftIds, Collection rightIds);

    default boolean exists(L leftId, R rightId) {
        return exists(leftId, singleton(rightId));
    }

    default boolean exists(L leftId, Collection rightIds) {
        return exists(singleton(leftId), rightIds);
    }

    default boolean exists(Collection leftIds, R rightId) {
        return exists(leftIds, singleton(rightId));
    }

    long count(Collection leftIds, Collection rightIds);

    default int allocate(L leftId, R rightId) {
        return allocate(leftId, singleton(rightId));
    }

    int allocate(L leftId, Collection rightIds);

    int allocate(Collection leftIds, R rightId);

    default void deallocate(L leftId, R rightId) {
        deallocate(singleton(leftId), singleton(rightId));
    }

    void deallocate(Collection leftIds, Collection rightIds);

    int reallocateForLeft(L leftId, Collection rightIds);

    int reallocateForRight(R rightId, Collection leftIds);

}