1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21 package org.apache.strutsel.taglib.logic;
22
23 import java.beans.IntrospectionException;
24 import java.beans.PropertyDescriptor;
25 import java.beans.SimpleBeanInfo;
26
27 import java.util.ArrayList;
28
29 /**
30 * This is the <code>BeanInfo</code> descriptor for the
31 * <code>org.apache.strutsel.taglib.logic.ELMessagesNotPresentTag</code>
32 * class. It is needed to override the default mapping of custom tag
33 * attribute names to class attribute names. <p> This is because the value of
34 * the unevaluated EL expression has to be kept separately from the evaluated
35 * value, which is stored in the base class. This is related to the fact that
36 * the JSP compiler can choose to reuse different tag instances if they
37 * received the same original attribute values, and the JSP compiler can
38 * choose to not re-call the setter methods, because it can assume the same
39 * values are already set.
40 */
41 public class ELMessagesNotPresentTagBeanInfo extends SimpleBeanInfo {
42 public PropertyDescriptor[] getPropertyDescriptors() {
43 ArrayList proplist = new ArrayList();
44
45 try {
46 proplist.add(new PropertyDescriptor("name",
47 ELMessagesNotPresentTag.class, null, "setNameExpr"));
48 } catch (IntrospectionException ex) {
49 }
50
51 try {
52 proplist.add(new PropertyDescriptor("property",
53 ELMessagesNotPresentTag.class, null, "setPropertyExpr"));
54 } catch (IntrospectionException ex) {
55 }
56
57 try {
58 proplist.add(new PropertyDescriptor("message",
59 ELMessagesNotPresentTag.class, null, "setMessageExpr"));
60 } catch (IntrospectionException ex) {
61 }
62
63 PropertyDescriptor[] result = new PropertyDescriptor[proplist.size()];
64
65 return ((PropertyDescriptor[]) proplist.toArray(result));
66 }
67 }