code: package it.unibz.inf.ontop.dbschema;
  
  /*
   * #%L
   * ontop-obdalib-core
   * %%
   * Copyright (C) 2009 - 2014 Free University of Bozen-Bolzano
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * #L%
   */
  
  
  import javax.annotation.Nonnull;
  
  /**
   * Factory for creating attribute and relation identifier from strings.
   * It defines the rules of transforming unquoted and quoted identifiers.
   * 
   * @author Roman Kontchakov
   *
   */
  
  public interface QuotedIDFactory {
  
  	/**
  	 * Creates a new attribute ID from a string.
  	 * @param attributeId possibly quoted attribute ID (SQL rendering)
  	 * @return attribute ID
  	 */
  	QuotedID createAttributeID(@Nonnull String attributeId);
  
  
  	RelationID createRelationID(@Nonnull String tableId);
  
  	/**
  	 * Creates a new relation ID from the component strings.
  	 * @param components list of the possibly quoted components of relation ID,
  	 *                      from the catalog to the table name
  	 * @return relation ID
  	 */
  	RelationID createRelationID(String... components);
  
  
  	/**
  	 * @return quotation string used in the SQL rendering
  	 */
  	String getIDQuotationString();
  }
  