/* Copyright (c) 2001-2024, The HSQL Development Group
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of the HSQL Development Group nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


package org.hsqldb.util;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.Types;

// sqlbob@users 20020325 - patch 1.7.0 - reengineering

/**
 * Conversions to / from Hsqldb
 *
 * @author Bob Preston (sqlbob@users dot sourceforge.net)
 * @version 1.7.0
 */
class HsqldbTransferHelper extends TransferHelper {

    public HsqldbTransferHelper() {
        super();
    }

    public HsqldbTransferHelper(TransferDb database, Traceable t, String q) {
        super(database, t, q);
    }

    int convertFromType(int type) {

        if (type == 100) {
            type = Types.VARCHAR;

            tracer.trace("Converted HSQLDB VARCHAR_IGNORECASE to VARCHAR");
        }

        return (type);
    }

    String fixupColumnDefRead(
            TransferTable t,
            ResultSetMetaData meta,
            String columnType,
            ResultSet columnDesc,
            int columnIndex) {

        String CompareString = "INTEGER IDENTITY";

        if (columnType.contains(CompareString)) {

            // We just found a increment
            columnType = "SERIAL";
        }

        return (columnType);
    }

    String fixupColumnDefWrite(
            TransferTable t,
            ResultSetMetaData meta,
            String columnType,
            ResultSet columnDesc,
            int columnIndex) {

        if (columnType.contains("SERIAL")) {
            columnType = "INTEGER GENERATED BY DEFAULT AS IDENTITY";
        }

        return (columnType);
    }

    String fixupColumnDefRead(
            String aTableName,
            ResultSetMetaData meta,
            String columnType,
            ResultSet columnDesc,
            int columnIndex) {

        return fixupColumnDefRead(
            (TransferTable) null,
            meta,
            columnType,
            columnDesc,
            columnIndex);
    }

    String fixupColumnDefWrite(
            String aTableName,
            ResultSetMetaData meta,
            String columnType,
            ResultSet columnDesc,
            int columnIndex) {

        return fixupColumnDefWrite(
            (TransferTable) null,
            meta,
            columnType,
            columnDesc,
            columnIndex);
    }

    String formatName(String t) {
        return formatIdentifier(t);
    }
}
