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16 package org.apache.myfaces.examples.crosstable;
17
18 import java.util.ArrayList  ;
19 import java.util.Arrays ;
20 import java.util.HashMap ;
21 import java.util.List ;
22 import java.util.Map ;
23
24 import javax.faces.model.DataModel;
25 import javax.faces.model.ListDataModel;
26
27 import org.apache.myfaces.examples.listexample.SimpleCountry;
28 import org.apache.myfaces.examples.listexample.SimpleCountryList;
29
30
34 public class DataBean extends SimpleCountryList
35 {
36 private DataModel mColumns;
37 private DataModel mCountryDataModel;
38 private Map mValueMap = new HashMap ();
39 private boolean mEditValues;
40 private String mColumnLabel;
41
42
45 public DataBean()
46 {
47 super();
48 }
49
50 public boolean isEditValues()
51 {
52 return mEditValues;
53 }
54
55 public String editValues()
56 {
57 mEditValues = true;
58 return null;
59 }
60
61 public String saveValues()
62 {
63 mEditValues = false;
64 return null;
65 }
66
67 public String addColumn()
68 {
69 if (mColumnLabel != null)
70 {
71 List columns = (List ) getColumnDataModel().getWrappedData();
72 columns.add(mColumnLabel);
73 }
74 return null;
75 }
76
77 public String removeColumn()
78 {
79 if (mColumns != null && mColumns.isRowAvailable())
80 {
81 Object column = mColumns.getRowData();
82 List columns = (List ) getColumnDataModel().getWrappedData();
83 columns.remove(column);
84 }
85 return null;
86 }
87
88 public String getColumnLabel()
89 {
90 return mColumnLabel;
91 }
92
93 public void setColumnLabel(String label)
94 {
95 mColumnLabel = label;
96 }
97
98 public DataModel getCountryDataModel()
99 {
100 if (mCountryDataModel == null)
101 {
102 mCountryDataModel = new ListDataModel(getCountries());
103 }
104 return mCountryDataModel;
105 }
106
107 public DataModel getColumnDataModel()
108 {
109 if (mColumns == null)
110 {
111 String [] result = new String [] {"2002", "2003", "2004"};
112 mColumns = new ListDataModel(new ArrayList (Arrays.asList(result)));
113 }
114 return mColumns;
115 }
116
117 public String getColumnValue()
118 {
119 DataModel countryDataModel = getCountryDataModel();
120 if (countryDataModel.isRowAvailable())
121 {
122 SimpleCountry row = (SimpleCountry) countryDataModel.getRowData();
123 DataModel columnDataModel = getColumnDataModel();
124 if (columnDataModel.isRowAvailable())
125 {
126 Object column = columnDataModel.getRowData();
127 Object key = new RowColumnKey(new Long (row.getId()), column);
128 if (!mValueMap.containsKey(key))
129 {
130 String randomValue = String.valueOf((int) (Math.random() * 5000) + 5000);
132 mValueMap.put(key, randomValue);
133 }
134 return (String ) mValueMap.get(key);
135 }
136 }
137 return null;
138 }
139
140 public void setColumnValue(String value)
141 {
142 DataModel countryDataModel = getCountryDataModel();
143 if (countryDataModel.isRowAvailable())
144 {
145 SimpleCountry row = (SimpleCountry) countryDataModel.getRowData();
146 DataModel columnDataModel = getColumnDataModel();
147 if (columnDataModel.isRowAvailable())
148 {
149 Object column = columnDataModel.getRowData();
150 Object key = new RowColumnKey(new Long (row.getId()), column);
151 mValueMap.put(key, value);
152 }
153 }
154 }
155
156 private class RowColumnKey
157 {
158 private final Object mRow;
159 private final Object mColumn;
160
161
165 public RowColumnKey(Object row, Object column)
166 {
167 mRow = row;
168 mColumn = column;
169 }
170
171
174 public boolean equals(Object obj)
175 {
176 if (obj == null)
177 {
178 return false;
179 }
180 if (obj == this)
181 {
182 return true;
183 }
184 if (obj instanceof RowColumnKey)
185 {
186 RowColumnKey other = (RowColumnKey) obj;
187 return other.mRow.equals(mRow) && other.mColumn.equals(mColumn);
188 }
189 return super.equals(obj);
190 }
191
192
195 public int hashCode()
196 {
197 return (37 * 3 + mRow.hashCode()) * (37 * 3 + mColumn.hashCode());
198 }
199
200
203 public String toString()
204 {
205 return mRow.toString() + "," + mColumn.toString();
206 }
207 }
208 }
209
210
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