edu.csula.squirrels.util.Hbm2ddl.java Source code

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Here is the source code for edu.csula.squirrels.util.Hbm2ddl.java

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/*
 * This file is part of the CSNetwork Services (CSNS) project.
 * 
 * Copyright 2012, Chengyu Sun (csun@calstatela.edu).
 * 
 * CSNS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 * 
 * CSNS 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 Affero General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with CSNS. If not, see http://www.gnu.org/licenses/agpl.html.
 */
package edu.csula.squirrels.util;

import java.util.HashMap;

import org.hibernate.cfg.Configuration;
import org.hibernate.ejb.Ejb3Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;

/**
 * According to Hibernate documentation, both Configuration and
 * Ejb3Configuration are deprecated and will be removed in Hibernate 5.
 * Hopefully by then SchemaExport can be initialized from persistence.xml
 * instead of hibernate.cfg.xml or hibernate.properties, and if so, we can
 * remove this class and run SchemaExport directly.
 */
@SuppressWarnings("deprecation")
public class Hbm2ddl {

    public static void main(String args[]) {
        if (args.length == 0) {
            System.err.println("java Hbm2ddl <outputFile>");
            return;
        }

        System.out.print("Export DDL to " + args[0] + " ... ");

        Configuration cfg = (new Ejb3Configuration()).configure("squirrels", new HashMap<String, Object>())
                .getHibernateConfiguration();

        SchemaExport schemaExport = new SchemaExport(cfg);
        schemaExport.setOutputFile(args[0]).setDelimiter(";").setFormat(true).setHaltOnError(true);

        // . output script to console (and file if outputFile is set): true
        // . export to database: false
        // . only drop the tables: false
        // . only create the tables: true
        schemaExport.execute(true, false, false, true);

        System.out.println("Done.");
    }

}