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Datastore SQL engine (DSQL) for Google appengine datastore. DSQL extends gae datastore in implementing local joins between datastore kinds as well as providing local filtering for unindexed properties. DSQL uses familiar sql-syntax. SQL joins are optimized using datastore statistics. It is assumed that datastore schema is designed like relational db. However parent/child relationships are supported. Also supported are special datatypes in package com.google.appengine.api.datastore like Email, Phonenumber, ...

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/*
 * Copyright (C) 2012 Timo Vesalainen
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.vesalainen.parsers.sql.dsql.ui;

import javax.swing.tree.TreePath;
import org.vesalainen.parsers.sql.dsql.Statistics;

/**
 *
 * @author Timo Vesalainen
 */
public interface MetadataHandler
{
    void selected(Statistics statistics, TreePath[] paths);
}