# Like.java

    /*
     * Copyright (C) 2000 - 2024 Silverpeas
     *
     * This program is free software: you can redistribute it and/or modify
     * it under the terms of the GNU Affero General Public License as
     * published by the Free Software Foundation, either version 3 of the
     * License, or (at your option) any later version.
     *
     * As a special exception to the terms and conditions of version 3.0 of
     * the GPL, you may redistribute this Program in connection with Free/Libre
     * Open Source Software ("FLOSS") applications as described in Silverpeas's
     * FLOSS exception.  You should have received a copy of the text describing
     * the FLOSS exception, and it is also available here:
     * "https://www.silverpeas.org/legal/floss_exception.html"
     *
     * 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 Affero General Public License for more details.
     *
     * You should have received a copy of the GNU Affero General Public License
     * along with this program.  If not, see <https://www.gnu.org/licenses/>.
     */

    package org.silverpeas.components.mydb.model.predicates;

    import org.silverpeas.components.mydb.model.DbColumn;
    import org.silverpeas.components.mydb.service.MyDBRuntimeException;
    import org.silverpeas.core.persistence.jdbc.sql.JdbcSqlQuery;

    import static java.text.MessageFormat.format;

    /**
     * The like predicate.
     * @author silveryocha
     */
    public class Like extends AbstractColumnValuePredicate {

      /**
       * Constructs a new predicate on the specified database table's column and with the given
       * reference value.
       * @param column the name of a column.
       * @param refValue a reference value.
       */
      public Like(final DbColumn column, final String refValue) {
        super(column, refValue);
      }

      @Override
      public JdbcSqlQuery apply(final JdbcSqlQuery query) {
        final Object normalizedValue = getNormalizedValue();
        if (getColumn().isOfTypeText()) {
          return query.where("lower(" + getColumn().getName() + ") like lower(?)", normalizedValue);
        } else {
          throw new MyDBRuntimeException(format(
              "Operator ''like'' cannot be applied to column ''{0}'' of type ''{1}'' with value " +
                  "''{2}''.\n\nPlease trying with a column of text type",
              getColumn().getName(), getColumn().getTypeName(), normalizedValue));
        }
      }
    }