cdmlib-io/src/main/java/eu/etaxonomy/cdm/io/common/mapping/DbImportMultiAttributeMapperBase.java

   1 // $Id$
   2 /**
   3 * Copyright (C) 2007 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
  11 package eu.etaxonomy.cdm.io.common.mapping;
  12
  13 import java.sql.ResultSet;
  14 import java.sql.SQLException;
  15
  16 import org.apache.log4j.Logger;
  17
  18 import eu.etaxonomy.cdm.io.common.DbImportStateBase;
  19 import eu.etaxonomy.cdm.model.common.CdmBase;
  20
  21 /**
  22  * @author a.mueller
  23  * @created 12.03.2010
  24  * @version 1.0
  25  */
  26 public abstract class DbImportMultiAttributeMapperBase<CDMBASE extends CdmBase, STATE extends DbImportStateBase<?,?>> extends MultipleAttributeMapperBase<CdmSingleAttributeMapperBase> implements IDbImportMapper<STATE, CDMBASE>{
  27         @SuppressWarnings("unused")
  28         private static final Logger logger = Logger.getLogger(DbImportMultiAttributeMapperBase.class);
  29
  30 //**************************** ATTRIBUTES ****************************************************
  31
  32         protected DbImportMapperBase<STATE> importMapperHelper = new DbImportMapperBase<STATE>();
  33
  34         /* (non-Javadoc)
  35          * @see eu.etaxonomy.cdm.io.common.mapping.IDbImportMapper#initialize(eu.etaxonomy.cdm.io.common.DbImportStateBase, java.lang.Class)
  36          */
  37         public void initialize(STATE state, Class<? extends CdmBase> destinationClass) {
  38                 importMapperHelper.initialize(state, destinationClass);
  39         }
  40
  41         protected STATE getState(){
  42                 return importMapperHelper.getState();
  43         }
  44
  45
  46         /**
  47          * Retrieves a related object from the state's related object map. Needs casting.
  48          * @param namespace
  49          * @param foreignKey
  50          * @return
  51          */
  52         protected CdmBase getRelatedObject(String namespace, String foreignKey) {
  53                 STATE state = importMapperHelper.getState();
  54                 CdmBase result = state.getRelatedObject(namespace, foreignKey);
  55                 return result;
  56         }
  57
  58         /**
  59          * Retrieves a related object from the state's related object map. Needs casting.
  60          * @param namespace
  61          * @param foreignKey
  62          * @return
  63          * @throws SQLException
  64          */
  65         protected CdmBase getRelatedObject(ResultSet rs, String namespace, String fkAttribute) throws SQLException {
  66                 STATE state = importMapperHelper.getState();
  67                 String foreignKey = getForeignKey(rs, fkAttribute);
  68                 CdmBase result = state.getRelatedObject(namespace, foreignKey);
  69                 return result;
  70         }
  71
  72         /**
  73          * @param rs
  74          * @param dbReferenceFkAttribute2
  75          * @return
  76          * @throws SQLException
  77          */
  78         protected String getForeignKey(ResultSet rs, String fkAttribute) throws SQLException {
  79                 Object oForeignKey = rs.getObject(fkAttribute);
  80                 String result = String.valueOf(oForeignKey);
  81                 return result;
  82         }
  83
  84
  85 }