content: /*
   * 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 com.mysql.cj.x.protobuf.MysqlxCrud.UpdateOperation;
  import com.mysql.cj.x.protobuf.MysqlxExpr.ColumnIdentifier;
  import com.mysql.cj.x.protobuf.MysqlxExpr.Expr;
  
  /**
   * Representation of a single update operation in a list of operations to be performed by {@link ModifyStatement}.
   * Used internally for transformation of X DevAPI parameters into X Protocol ones.
   */
  public class UpdateSpec {
  
      private UpdateOperation.UpdateType updateType;
      private ColumnIdentifier source;
      private Expr value;
  
      /**
       * Constructor.
       * 
       * @param updateType
       *            update operation type
       * @param source
       *            document path expression
       */
      public UpdateSpec(UpdateType updateType, String source) {
          this.updateType = UpdateOperation.UpdateType.valueOf(updateType.name());
          // accommodate parser's documentField() handling by removing "$"
          if (source.length() > 0 && source.charAt(0) == '$') {
              source = source.substring(1);
          }
          this.source = new ExprParser(source, false).documentField().getIdentifier();
      }
  
      /**
       * Get X Protocol update type.
       * 
       * @return X Protocol UpdateOperation.UpdateType
       */
      public Object getUpdateType() {
          return this.updateType;
      }
  
      /**
       * Get X Protocol ColumnIdentifier.
       * 
       * @return X Protocol MysqlxExpr.ColumnIdentifier
       */
      public Object getSource() {
          return this.source;
      }
  
      /**
       * Set value to be set by this update operation.
       * 
       * @param value
       *            value expression
       * @return this UpdateSpec
       */
      public UpdateSpec setValue(Object value) {
          this.value = ExprUtil.argObjectToExpr(value, false);
          return this;
      }
  
      /**
       * Get X Protocol value expression.
       * 
       * @return X Protocol MysqlxExpr.Expr
       */
      public Object getValue() {
          return this.value;
      }
  }
  