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JDBC Type 4 driver for MySQL
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/*
 * Copyright (c) 2015, 2020, 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 also distributed with certain software (including but not
 * limited to OpenSSL) 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 included with MySQL.
 *
 * 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.xdevapi;

import java.util.HashMap;
import java.util.Map;

import com.mysql.cj.x.protobuf.MysqlxExpr.ColumnIdentifier;
import com.mysql.cj.x.protobuf.MysqlxExpr.Expr;

/**
 * Class collecting parameters for {@link Table#update()}.
 */
public class UpdateParams {
    private Map updateOps = new HashMap<>();

    /**
     * Fill update parameters from field -> value_expression map.
     * 
     * @param updates
     *            field -> value_expression map
     */
    public void setUpdates(Map updates) {
        updates.entrySet().forEach(e -> addUpdate(e.getKey(), e.getValue()));
    }

    /**
     * Add update parameter.
     * 
     * @param path
     *            field name
     * @param value
     *            value expression
     */
    public void addUpdate(String path, Object value) {
        this.updateOps.put(new ExprParser(path, true).parseTableUpdateField(), ExprUtil.argObjectToExpr(value, true));
    }

    /**
     * Get update parameters map.
     * 
     * @return X Protocol ColumnIdentifier->Expr map.
     */
    public Object getUpdates() {
        return this.updateOps;
    }
}