content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software GmbH & Co. KG, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.db.db2;
  
  import org.opencms.db.CmsSelectQuery.TableAlias;
  import org.opencms.db.CmsSimpleQueryFragment;
  import org.opencms.db.I_CmsQueryFragment;
  import org.opencms.db.generic.CmsSqlManager;
  import org.opencms.db.generic.CmsUserQueryBuilder;
  
  import com.google.common.base.Joiner;
  
  /**
   * DB2 implementation of the user driver methods.<p>
   *
   * @since 7.0.3
   */
  public class CmsUserDriver extends org.opencms.db.generic.CmsUserDriver {
  
      /**
       * @see org.opencms.db.generic.CmsUserDriver#createUserQueryBuilder()
       */
      @Override
      public CmsUserQueryBuilder createUserQueryBuilder() {
  
          return new CmsUserQueryBuilder() {
  
              /**
               * @see org.opencms.db.generic.CmsUserQueryBuilder#createFlagCondition(org.opencms.db.CmsSelectQuery.TableAlias, int)
               */
              @Override
              protected I_CmsQueryFragment createFlagCondition(TableAlias users, int flags) {
  
                  return new CmsSimpleQueryFragment(
                      "BITAND(" + users.column("USER_FLAGS") + ", ?) = ? ",
                      Integer.valueOf(flags),
                      Integer.valueOf(flags));
              }
  
              /**
               * @see org.opencms.db.generic.CmsUserQueryBuilder#generateConcat(java.lang.String[])
               */
              @Override
              protected String generateConcat(String... expressions) {
  
                  return Joiner.on(" || ").join(expressions);
              }
  
              /**
               * @see org.opencms.db.generic.CmsUserQueryBuilder#getUserFlagExpression(org.opencms.db.CmsSelectQuery.TableAlias, int)
               */
              @Override
              protected String getUserFlagExpression(TableAlias users, int flags) {
  
                  return "BITAND(" + users.column("USER_FLAGS") + ", " + flags + ")";
  
              }
  
              /**
               * @see org.opencms.db.generic.CmsUserQueryBuilder#useWindowFunctionsForPaging()
               */
              @Override
              protected boolean useWindowFunctionsForPaging() {
  
                  return true;
              }
          };
      }
  
      /**
      * @see org.opencms.db.I_CmsUserDriver#initSqlManager(String)
      */
      @Override
      public org.opencms.db.generic.CmsSqlManager initSqlManager(String classname) {
  
          return CmsSqlManager.getInstance(classname);
      }
  
  }