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1
14
15 package com.sun.facelets.el;
16
17 import java.io.Externalizable  ;
18 import java.io.IOException ;
19 import java.io.ObjectInput ;
20 import java.io.ObjectOutput ;
21
22 import javax.el.ELContext;
23 import javax.el.ELException;
24 import javax.el.PropertyNotFoundException;
25 import javax.el.PropertyNotWritableException;
26 import javax.el.ValueExpression;
27
28 import com.sun.facelets.tag.TagAttribute;
29
30
36 public final class TagValueExpression extends ValueExpression implements
37 Externalizable {
38
39 private static final long serialVersionUID = 1L;
40
41 private ValueExpression orig;
42
43 private String attr;
44
45 public TagValueExpression() {
46 super();
47 }
48
49 public TagValueExpression(TagAttribute attr, ValueExpression orig) {
50 this.attr = attr.toString();
51 this.orig = orig;
52 }
53
54 public Class getExpectedType() {
55 return this.orig.getExpectedType();
56 }
57
58 public Class getType(ELContext context) {
59 try {
60 return this.orig.getType(context);
61 } catch (PropertyNotFoundException pnfe) {
62 throw new PropertyNotFoundException(this.attr + ": "
63 + pnfe.getMessage(), pnfe.getCause());
64 } catch (ELException e) {
65 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
66 }
67 }
68
69 public Object getValue(ELContext context) {
70 try {
71 return this.orig.getValue(context);
72 } catch (PropertyNotFoundException pnfe) {
73 throw new PropertyNotFoundException(this.attr + ": "
74 + pnfe.getMessage(), pnfe.getCause());
75 } catch (ELException e) {
76 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
77 }
78 }
79
80 public boolean isReadOnly(ELContext context) {
81 try {
82 return this.orig.isReadOnly(context);
83 } catch (PropertyNotFoundException pnfe) {
84 throw new PropertyNotFoundException(this.attr + ": "
85 + pnfe.getMessage(), pnfe.getCause());
86 } catch (ELException e) {
87 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
88 }
89 }
90
91 public void setValue(ELContext context, Object value) {
92 try {
93 this.orig.setValue(context, value);
94 } catch (PropertyNotFoundException pnfe) {
95 throw new PropertyNotFoundException(this.attr + ": "
96 + pnfe.getMessage(), pnfe.getCause());
97 } catch (PropertyNotWritableException pnwe) {
98 throw new PropertyNotWritableException(this.attr + ": "
99 + pnwe.getMessage(), pnwe.getCause());
100 } catch (ELException e) {
101 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
102 }
103 }
104
105 public boolean equals(Object obj) {
106 return this.orig.equals(obj);
107 }
108
109 public String getExpressionString() {
110 return this.orig.getExpressionString();
111 }
112
113 public int hashCode() {
114 return this.orig.hashCode();
115 }
116
117 public boolean isLiteralText() {
118 return this.orig.isLiteralText();
119 }
120
121 public void readExternal(ObjectInput in) throws IOException ,
122 ClassNotFoundException {
123 this.orig = (ValueExpression) in.readObject();
124 this.attr = in.readUTF();
125 }
126
127 public void writeExternal(ObjectOutput out) throws IOException {
128 out.writeObject(this.orig);
129 out.writeUTF(this.attr);
130 }
131
132 public String toString() {
133 return this.attr + ": " + this.orig;
134 }
135 }
136 |
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