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JDBC Type 4 driver for MySQL.

There is a newer version: 9.1.0

/*
 * Copyright (c) 2022, 2024, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by
 * the Free Software Foundation.
 *
 * This program is designed to work with certain software that is licensed under separate terms, as designated in a particular file or component or in
 * included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the
 * separately licensed software that they have either included with the program or referenced in the documentation.
 *
 * Without limiting anything contained in the foregoing, this file, which is part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
 * version 1.0, a copy of which can be found at http://oss.oracle.com/licenses/universal-foss-exception.
 *
 * 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, version 2.0, for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

package com.mysql.cj.protocol.a;

import com.mysql.cj.BindValue;
import com.mysql.cj.conf.PropertySet;
import com.mysql.cj.exceptions.ExceptionInterceptor;
import com.mysql.cj.protocol.Message;
import com.mysql.cj.protocol.ServerSession;
import com.mysql.cj.util.StringUtils;

public class NullValueEncoder extends AbstractValueEncoder {

    @Override
    public void init(PropertySet pset, ServerSession serverSess, ExceptionInterceptor excInterceptor) {
        super.init(pset, serverSess, excInterceptor);
    }

    @Override
    public byte[] getBytes(BindValue binding) {
        return StringUtils.getBytes("null");
    }

    @Override
    public String getString(BindValue binding) {
        return "NULL";
    }

    @Override
    public void encodeAsBinary(Message msg, BindValue binding) {
        // No-op. Null values are encoded in special null bytes.
    }

}