1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/* Glazed Lists (c) 2003-2006 */
/* http://publicobject.com/glazedlists/ publicobject.com,*/
/* O'Dell Engineering Ltd.*/
package ca.odell.glazedlists.impl.beans;
import ca.odell.glazedlists.GlazedLists;
import ca.odell.glazedlists.gui.AdvancedTableFormat;
import ca.odell.glazedlists.gui.WritableTableFormat;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.Collections;
/**
* TableFormat implementation that uses reflection to be used for any
* JavaBean-like Object with getProperty() and setProperty() style API.
*
* @author <a href="mailto:jesse@swank.ca">Jesse Wilson</a>
* @author <a href="mailto:andrea.aime@aliceposta.it">Andrea Aime</a>
*/
public class BeanTableFormat<E> implements WritableTableFormat<E>, AdvancedTableFormat<E> {
/** methods for extracting field values */
protected BeanProperty<E>[] beanProperties = null;
/** Java Beans property names */
protected String[] propertyNames;
/** column labels are pretty-print column header labels */
protected String[] columnLabels;
/** whether all columns can be edited */
private boolean[] editable;
/** column comparators */
protected Comparator[] comparators;
/** column classes */
protected Class[] classes;
/** primitive class to object class conversion map */
protected static final Map<Class,Class> primitiveToObjectMap;
static {
Map<Class,Class> primitiveToObjectMapWritable = new HashMap<Class,Class>();
primitiveToObjectMapWritable.put(boolean.class, Boolean.class);
primitiveToObjectMapWritable.put(char.class, Character.class);
primitiveToObjectMapWritable.put(byte.class, Byte.class);
primitiveToObjectMapWritable.put(short.class, Short.class);
primitiveToObjectMapWritable.put(int.class, Integer.class);
primitiveToObjectMapWritable.put(long.class, Long.class);
primitiveToObjectMapWritable.put(float.class, Float.class);
primitiveToObjectMapWritable.put(double.class, Double.class);
primitiveToObjectMap = Collections.unmodifiableMap(primitiveToObjectMapWritable);
}
/**
* Create a BeanTableFormat that uses the specified column names
* and the specified field names while offering editable columns.
*/
public BeanTableFormat(Class<E> beanClass, String[] propertyNames, String[] columnLabels, boolean[] editable) {
this.propertyNames = propertyNames;
this.columnLabels = columnLabels;
this.editable = editable;
// set up the AdvancedTableFormat properties
comparators = new Comparator[propertyNames.length];
classes = new Class[propertyNames.length];
// use default properties if no class is specified
if(beanClass == null) {
for(int c = 0; c < classes.length; c++) {
classes[c] = Object.class;
comparators[c] = GlazedLists.comparableComparator();
}
// use detected properties if class is specified
} else {
loadPropertyDescriptors(beanClass);
for(int c = 0; c < classes.length; c++) {
// class
Class rawClass = beanProperties[c].getValueClass();
if(primitiveToObjectMap.containsKey(rawClass)) {
classes[c] = primitiveToObjectMap.get(rawClass);
} else {
classes[c] = rawClass;
}
// comparator
if(Comparable.class.isAssignableFrom(classes[c])) comparators[c] = GlazedLists.comparableComparator();
else comparators[c] = null;
}
}
}
public BeanTableFormat(Class<E> beanClass, String[] propertyNames, String[] columnLabels) {
this(beanClass, propertyNames, columnLabels, new boolean[propertyNames.length]);
}
/**
* Loads the property descriptors which are used to invoke property
* access methods using the property names.
*/
protected void loadPropertyDescriptors(Class<E> beanClass) {
beanProperties = new BeanProperty[propertyNames.length];
for(int p = 0; p < propertyNames.length; p++) {
beanProperties[p] = new BeanProperty<E>(beanClass, propertyNames[p], true, editable[p]);
}
}
// TableFormat // // // // // // // // // // // // // // // // // // // //
/**
* The number of columns to display.
*/
public int getColumnCount() {
return columnLabels.length;
}
/**
* Gets the title of the specified column.
*/
public String getColumnName(int column) {
return columnLabels[column];
}
/**
* Gets the value of the specified field for the specified object. This
* is the value that will be passed to the editor and renderer for the
* column. If you have defined a custom renderer, you may choose to return
* simply the baseObject.
*/
public Object getColumnValue(E baseObject, int column) {
if(baseObject == null) return null;
// load the property descriptors on first request
if(beanProperties == null) loadPropertyDescriptors((Class<E>) baseObject.getClass());
// get the property
return beanProperties[column].get(baseObject);
}
// WritableTableFormat // // // // // // // // // // // // // // // // // //
/**
* For editing fields. This returns true if the specified Object in the
* specified column can be edited by the user.
*
* @param baseObject the Object to test as editable or not. This will be
* an element from the source list.
* @param column the column to test.
* @return true if the object and column are editable, false otherwise.
* @since 2004-August-27, as a replacement for isColumnEditable(int).
*/
public boolean isEditable(E baseObject, int column) {
return editable[column];
}
/**
* Sets the specified field of the base object to the edited value. When
* a column of a table is edited, this method is called so that the user
* can specify how to modify the base object for each column.
*
* @param baseObject the Object to be edited. This will be the original
* Object from the source list.
* @param editedValue the newly constructed value for the edited column
* @param column the column which has been edited
* @return the revised Object, or null if the revision shall be discarded.
* If not null, the EventTableModel will set() this revised value in
* the list and overwrite the previous value.
*/
public E setColumnValue(E baseObject, Object editedValue, int column) {
if(baseObject == null) return null;
// load the property descriptors on first request
if(beanProperties == null) loadPropertyDescriptors((Class<E>) baseObject.getClass());
// set the property
beanProperties[column].set(baseObject, editedValue);
// return the modified result
return baseObject;
}
// AdvancedTableFormat // // // // // // // // // // // // // // // // // //
/**
* Get the class of the specified column.
*/
public Class getColumnClass(int column) {
return classes[column];
}
/**
* Get the comparator for the specified column.
*/
public Comparator getColumnComparator(int column) {
return comparators[column];
}
}
|
