cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/update/SimpleSchemaUpdaterStep.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2009 EDIT
   4 * European Distributed Institute of Taxonomy
   5 * http://www.e-taxonomy.eu
   6 *
   7 * The contents of this file are subject to the Mozilla Public License Version 1.1
   8 * See LICENSE.TXT at the top of this package for the full license terms.
   9 */
  10 package eu.etaxonomy.cdm.database.update;
  11
  12 import java.util.HashMap;
  13 import java.util.Map;
  14
  15 import org.apache.log4j.Logger;
  16
  17 import eu.etaxonomy.cdm.common.IProgressMonitor;
  18 import eu.etaxonomy.cdm.database.DatabaseTypeEnum;
  19 import eu.etaxonomy.cdm.database.ICdmDataSource;
  20
  21 /**
  22  * This class represents one step in a schema update.
  23  * @author a.mueller
  24  * @date 13.09.2010
  25  *
  26  */
  27 public class SimpleSchemaUpdaterStep extends SchemaUpdaterStepBase implements ISchemaUpdaterStep, ITermUpdaterStep{
  28         @SuppressWarnings("unused")
  29         private static final Logger logger = Logger.getLogger(SimpleSchemaUpdaterStep.class);
  30
  31         private Map<DatabaseTypeEnum, String> queryMap = new HashMap<DatabaseTypeEnum, String>();
  32
  33
  34 // *************************** FACTORY ********************************/
  35
  36         public static SimpleSchemaUpdaterStep NewInstance(String stepName, String defaultQuery){
  37                 return new SimpleSchemaUpdaterStep(stepName, defaultQuery);
  38         }
  39
  40 //************************ CONSTRUCTOR ***********************************/
  41         private SimpleSchemaUpdaterStep(String stepName, String defaultQuery){
  42                 super(stepName);
  43                 queryMap.put(null, defaultQuery);
  44         }
  45
  46 // *************************** INVOKE *****************************
  47
  48         /* (non-Javadoc)
  49          * @see eu.etaxonomy.cdm.database.update.SchemaUpdaterStepBase#invoke(eu.etaxonomy.cdm.database.ICdmDataSource, eu.etaxonomy.cdm.common.IProgressMonitor)
  50          */
  51         public Integer invoke (ICdmDataSource datasource, IProgressMonitor monitor){
  52                 boolean result = true;
  53                 String query = queryMap.get(datasource.getDatabaseType());
  54                 if (query == null){
  55                         query = queryMap.get(null);
  56                 }
  57                 datasource.executeUpdate(query);
  58                 return (result == true )? 0 : null;
  59         }
  60
  61 //********************************* DELEGATES *********************************/
  62
  63         public String put(DatabaseTypeEnum dbType, String query) {
  64                 return queryMap.put(dbType, query);
  65         }
  66
  67
  68
  69 }