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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.MethodExpression;
25 import javax.el.MethodInfo;
26 import javax.el.MethodNotFoundException;
27 import javax.el.PropertyNotFoundException;
28
29 import com.sun.facelets.tag.TagAttribute;
30
31
37 public final class TagMethodExpression extends MethodExpression implements
38 Externalizable {
39
40 private static final long serialVersionUID = 1L;
41
42 private String attr;
43 private MethodExpression orig;
44
45 public TagMethodExpression() {
46 super();
47 }
48
49 public TagMethodExpression(TagAttribute attr, MethodExpression orig) {
50 this.attr = attr.toString();
51 this.orig = orig;
52 }
53
54 public MethodInfo getMethodInfo(ELContext context) {
55 try {
56 return this.orig.getMethodInfo(context);
57 } catch (PropertyNotFoundException pnfe) {
58 throw new PropertyNotFoundException(this.attr + ": " + pnfe.getMessage(), pnfe.getCause());
59 } catch (MethodNotFoundException mnfe) {
60 throw new MethodNotFoundException(this.attr + ": " + mnfe.getMessage(), mnfe.getCause());
61 } catch (ELException e) {
62 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
63 }
64 }
65
66 public Object invoke(ELContext context, Object [] params) {
67 try {
68 return this.orig.invoke(context, params);
69 } catch (PropertyNotFoundException pnfe) {
70 throw new PropertyNotFoundException(this.attr + ": " + pnfe.getMessage(), pnfe.getCause());
71 } catch (MethodNotFoundException mnfe) {
72 throw new MethodNotFoundException(this.attr + ": " + mnfe.getMessage(), mnfe.getCause());
73 } catch (ELException e) {
74 throw new ELException(this.attr + ": " + e.getMessage(), e.getCause());
75 }
76 }
77
78 public String getExpressionString() {
79 return this.orig.getExpressionString();
80 }
81
82 public boolean equals(Object obj) {
83 return this.orig.equals(obj);
84 }
85
86 public int hashCode() {
87 return this.orig.hashCode();
88 }
89
90 public boolean isLiteralText() {
91 return this.orig.isLiteralText();
92 }
93
94 public void writeExternal(ObjectOutput out) throws IOException {
95 out.writeObject(this.orig);
96 out.writeUTF(this.attr);
97 }
98
99 public void readExternal(ObjectInput in) throws IOException ,
100 ClassNotFoundException {
101 this.orig = (MethodExpression) in.readObject();
102 this.attr = in.readUTF();
103 }
104
105 public String toString() {
106 return this.attr + ": " + this.orig;
107 }
108 }
109 |
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