cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/persistence/dao/taxon/tmp/LogicFilter.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.persistence.dao.taxon.tmp;
  11
  12 import java.util.UUID;
  13
  14 import eu.etaxonomy.cdm.model.common.CdmBase;
  15 import eu.etaxonomy.cdm.model.common.ITreeNode;
  16
  17 /**
  18  * Preliminary class which represents a filter for an export on a CdmBase object, combined
  19  * with a logical operation.
  20  * Added to an existing filter it may e.g. allow operations like "filter1 or filter(TaxonNode:123)"
  21  * It includes the logical operators as enums.
  22  *
  23  * @author a.mueller
  24  *
  25  */
  26 public class LogicFilter<T extends CdmBase> {
  27
  28         public enum Op{
  29                 OR, AND, NOT;
  30 //              OR(" OR "), AND(" AND "), NOT(" NOT ");
  31 //                      String str;
  32 //
  33 //              private Op(String opStr){
  34 //                      str = opStr;
  35 //              }
  36         }
  37
  38         private static final Op defaultOperator = Op.OR;
  39
  40         private Op operator = defaultOperator;
  41
  42         private UUID uuid;
  43         private String treeIndex;
  44
  45
  46
  47         public LogicFilter(T cdmBase){
  48                 this(cdmBase, defaultOperator);
  49         }
  50
  51         public LogicFilter(T cdmBase, Op operator){
  52                 if (cdmBase == null){
  53                         throw new IllegalArgumentException("Null object not allowed as filter criteria");
  54                 }
  55                 if (operator == null){
  56                         operator = defaultOperator;
  57                 }
  58
  59                 this.uuid = cdmBase.getUuid();
  60                 this.operator = operator;
  61                 CdmBase cdmBase2 = CdmBase.deproxy(cdmBase, CdmBase.class);
  62                 if (cdmBase2 instanceof ITreeNode){
  63                         this.treeIndex = ((ITreeNode<?>)cdmBase2).treeIndex();
  64                 }
  65         }
  66
  67         public Op getOperator() {
  68                 return operator;
  69         }
  70
  71         public UUID getUuid() {
  72                 return uuid;
  73         }
  74
  75         public String getTreeIndex() {
  76                 return treeIndex;
  77         }
  78
  79 }