content: /*
   * Copyright (c) 2016, 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.protocol;
  
  import java.util.Map;
  
  import com.mysql.cj.result.Field;
  
  /**
   * Represents protocol specific result set metadata,
   * eg., for native protocol, Protocol::ColumnDefinition41 protocol entity.
   *
   */
  public interface ColumnDefinition extends ProtocolEntity {
  
      Field[] getFields();
  
      void setFields(Field[] fields);
  
      /**
       * Builds a hash between column names and their indices for fast retrieval.
       * This is done lazily to support findColumn() and get*(String), as it
       * can be more expensive than just retrieving result set values by ordinal
       * index.
       */
      void buildIndexMapping();
  
      boolean hasBuiltIndexMapping();
  
      public Map<String, Integer> getColumnLabelToIndex();
  
      void setColumnLabelToIndex(Map<String, Integer> columnLabelToIndex);
  
      public Map<String, Integer> getFullColumnNameToIndex();
  
      void setFullColumnNameToIndex(Map<String, Integer> fullColNameToIndex);
  
      public Map<String, Integer> getColumnNameToIndex();
  
      void setColumnNameToIndex(Map<String, Integer> colNameToIndex);
  
      public Map<String, Integer> getColumnToIndexCache();
  
      public void setColumnToIndexCache(Map<String, Integer> columnToIndexCache);
  
      void initializeFrom(ColumnDefinition columnDefinition);
  
      void exportTo(ColumnDefinition columnDefinition);
  
      int findColumn(String columnName, boolean useColumnNamesInFindColumn, int indexBase);
  
      /**
       * Check if fields with type BLOB, MEDIUMBLOB, LONGBLOB, TEXT, MEDIUMTEXT or LONGTEXT exist in this ColumnDefinition.
       * 
       * @return true if fields with type BLOB, MEDIUMBLOB, LONGBLOB, TEXT, MEDIUMTEXT or LONGTEXT exist in this ColumnDefinition.
       */
      boolean hasLargeFields();
  }
  