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 *   Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
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 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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package org.apache.cayenne.dbsync.reverse.dbload;

import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbRelationship;
import org.apache.cayenne.map.ObjEntity;

/**
 * Defines API for progress tracking and altering the flow of reverse-engineering.
 */
public interface DbLoaderDelegate {

    void dbEntityAdded(DbEntity entity);

    void dbEntityRemoved(DbEntity entity);

    /**
     * Called before relationship loading for a {@link DbEntity}.
     *
     * @param entity DbEntity for which {@link DbRelationship} is about to be loaded.
     * @return true in case you want process relationships for this entity, false otherwise.
     */
    boolean dbRelationship(DbEntity entity);

    /**
     * Called before relationship will be added into db-entity but after it was loaded from db
     *
     * @param entity
     * @return true in case you want add this relationship into entity
     * false otherwise
     */
    boolean dbRelationshipLoaded(DbEntity entity, DbRelationship relationship);

}