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Java > Open Source Codes > org > objectstyle > cayenne > dataview > dvmodeler > RelationshipsTableModel


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56
57 package org.objectstyle.cayenne.dataview.dvmodeler;
58
59 import java.util.*;
60 import javax.swing.table.*;
61
62 /**
63  *
64  * @author Nataliya Kholodna
65  * @version 1.0
66  */
67
68 public class RelationshipsTableModel extends AbstractTableModel {
69   private List objRelationships = new ArrayList();
70   private String JavaDoc[] columnNames= {"Name",
71                                  "Source",
72                                  "Target",
73                                  "To Many"};
74
75
76   public RelationshipsTableModel() {
77   }
78
79   /*Setting another relationships in model*/
80   public void setObjRelationships(List relationships){
81     objRelationships = relationships;
82     fireTableStructureChanged();
83   }
84
85   /*Returns the number of rows in the model. */
86   public int getRowCount(){
87     return objRelationships.size();
88   }
89
90   /*Returns the number of columns in the model. */
91   public int getColumnCount(){
92       return columnNames.length;
93   }
94
95   /*Returns a default name for the column */
96   public String JavaDoc getColumnName(int col) {
97     return columnNames[col];
98   }
99
100   /*Returns Object.class regardless of columnIndex.*/
101   public Class JavaDoc getColumnClass(int c) {
102     return getValueAt(0, c).getClass();
103   }
104
105   /*Returns the value for the cell at column index and row index. */
106   public Object JavaDoc getValueAt(int row, int column){
107     ObjRelationship relationship = (ObjRelationship)objRelationships.get(row);
108     switch (column){
109       case 0:
110         return relationship.getName();
111       case 1:
112         return relationship.getSourceObjEntity();
113       case 2:
114         return relationship.getTargetObjEntity();
115       case 3:
116         return Boolean.valueOf(relationship.isToMany());
117
118       default: return null;
119     }
120
121   }
122 }
123
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