1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
|
18 | |
|
19 | |
|
20 | |
package javax.faces.component; |
21 | |
|
22 | |
import javax.el.ELException; |
23 | |
import javax.el.ValueExpression; |
24 | |
import javax.faces.context.FacesContext; |
25 | |
import javax.faces.el.EvaluationException; |
26 | |
import javax.faces.el.PropertyNotFoundException; |
27 | |
import javax.faces.el.ValueBinding; |
28 | |
|
29 | |
|
30 | |
|
31 | |
|
32 | |
|
33 | |
|
34 | |
|
35 | |
|
36 | |
class _ValueExpressionToValueBinding extends ValueBinding implements StateHolder |
37 | |
{ |
38 | |
|
39 | |
private ValueExpression _valueExpression; |
40 | |
|
41 | 32 | private boolean isTransient = false; |
42 | |
|
43 | |
|
44 | |
protected _ValueExpressionToValueBinding() |
45 | 0 | { |
46 | 0 | _valueExpression = null; |
47 | 0 | } |
48 | |
|
49 | |
@Override |
50 | |
public int hashCode() |
51 | |
{ |
52 | 14 | int prime = 31; |
53 | 14 | int result = 1; |
54 | 14 | result = prime * result + ((_valueExpression == null) ? 0 : _valueExpression.hashCode()); |
55 | 14 | result = prime * result + (isTransient ? 1231 : 1237); |
56 | 14 | return result; |
57 | |
} |
58 | |
|
59 | |
@Override |
60 | |
public boolean equals(Object obj) |
61 | |
{ |
62 | 8 | if (this == obj) |
63 | |
{ |
64 | 2 | return true; |
65 | |
} |
66 | 6 | if (obj == null) |
67 | |
{ |
68 | 0 | return false; |
69 | |
} |
70 | 6 | if (getClass() != obj.getClass()) |
71 | |
{ |
72 | 2 | return false; |
73 | |
} |
74 | 4 | _ValueExpressionToValueBinding other = (_ValueExpressionToValueBinding) obj; |
75 | 4 | if (_valueExpression == null) |
76 | |
{ |
77 | 0 | if (other._valueExpression != null) |
78 | |
{ |
79 | 0 | return false; |
80 | |
} |
81 | |
} |
82 | 4 | else if (!_valueExpression.equals(other._valueExpression)) |
83 | |
{ |
84 | 0 | return false; |
85 | |
} |
86 | 4 | if (isTransient != other.isTransient) |
87 | |
{ |
88 | 2 | return false; |
89 | |
} |
90 | 2 | return true; |
91 | |
} |
92 | |
|
93 | |
|
94 | |
|
95 | |
|
96 | |
public ValueExpression getValueExpression() |
97 | |
{ |
98 | 2 | return getNotNullValueExpression(); |
99 | |
} |
100 | |
|
101 | |
|
102 | |
|
103 | |
|
104 | |
private ValueExpression getNotNullValueExpression() |
105 | |
{ |
106 | 30 | if (_valueExpression == null) |
107 | |
{ |
108 | 0 | throw new IllegalStateException("value expression is null"); |
109 | |
} |
110 | 30 | return _valueExpression; |
111 | |
} |
112 | |
|
113 | |
@Override |
114 | |
public String getExpressionString() |
115 | |
{ |
116 | 2 | return getNotNullValueExpression().getExpressionString(); |
117 | |
} |
118 | |
|
119 | |
|
120 | |
public _ValueExpressionToValueBinding(ValueExpression valueExpression) |
121 | 32 | { |
122 | 32 | if (valueExpression == null) |
123 | |
{ |
124 | 2 | throw new IllegalArgumentException("value expression must not be null."); |
125 | |
} |
126 | 30 | _valueExpression = valueExpression; |
127 | 30 | } |
128 | |
|
129 | |
@Override |
130 | |
public void setValue(FacesContext facesContext, Object value) throws EvaluationException, PropertyNotFoundException |
131 | |
{ |
132 | |
try |
133 | |
{ |
134 | 6 | getNotNullValueExpression().setValue(facesContext.getELContext(), value); |
135 | |
} |
136 | 2 | catch (javax.el.PropertyNotFoundException e) |
137 | |
{ |
138 | 2 | throw new javax.faces.el.PropertyNotFoundException(e); |
139 | |
} |
140 | 2 | catch (ELException e) |
141 | |
{ |
142 | 2 | throw new EvaluationException(e); |
143 | 2 | } |
144 | 2 | } |
145 | |
|
146 | |
@Override |
147 | |
public boolean isReadOnly(FacesContext facesContext) throws EvaluationException, PropertyNotFoundException |
148 | |
{ |
149 | |
|
150 | |
try |
151 | |
{ |
152 | 8 | return getNotNullValueExpression().isReadOnly(facesContext.getELContext()); |
153 | |
} |
154 | 2 | catch (javax.el.PropertyNotFoundException e) |
155 | |
{ |
156 | 2 | throw new javax.faces.el.PropertyNotFoundException(e); |
157 | |
} |
158 | 2 | catch (ELException e) |
159 | |
{ |
160 | 2 | throw new EvaluationException(e); |
161 | |
} |
162 | |
|
163 | |
} |
164 | |
|
165 | |
@Override |
166 | |
public Object getValue(FacesContext facesContext) throws EvaluationException, PropertyNotFoundException |
167 | |
{ |
168 | |
try |
169 | |
{ |
170 | 6 | return getNotNullValueExpression().getValue(facesContext.getELContext()); |
171 | |
} |
172 | 2 | catch (javax.el.PropertyNotFoundException e) |
173 | |
{ |
174 | 2 | throw new javax.faces.el.PropertyNotFoundException(e); |
175 | |
} |
176 | 2 | catch (ELException e) |
177 | |
{ |
178 | 2 | throw new EvaluationException(e); |
179 | |
} |
180 | |
} |
181 | |
|
182 | |
@Override |
183 | |
public Class getType(FacesContext facesContext) throws EvaluationException, PropertyNotFoundException |
184 | |
{ |
185 | |
try |
186 | |
{ |
187 | 6 | return getNotNullValueExpression().getType(facesContext.getELContext()); |
188 | |
} |
189 | 2 | catch (javax.el.PropertyNotFoundException e) |
190 | |
{ |
191 | 2 | throw new javax.faces.el.PropertyNotFoundException(e); |
192 | |
} |
193 | 2 | catch (ELException e) |
194 | |
{ |
195 | 2 | throw new EvaluationException(e); |
196 | |
} |
197 | |
} |
198 | |
|
199 | |
|
200 | |
|
201 | |
public void restoreState(FacesContext facesContext, Object state) |
202 | |
{ |
203 | 0 | if (state != null) |
204 | |
{ |
205 | 0 | if (state instanceof ValueExpression) |
206 | |
{ |
207 | 0 | _valueExpression = (ValueExpression) state; |
208 | |
} |
209 | |
else |
210 | |
{ |
211 | 0 | Object[] stateArray = (Object[]) state; |
212 | 0 | _valueExpression = (ValueExpression) _ClassUtils.newInstance((String) stateArray[0], |
213 | |
ValueExpression.class); |
214 | 0 | ((StateHolder) _valueExpression).restoreState(facesContext, stateArray[1]); |
215 | |
} |
216 | |
} |
217 | 0 | } |
218 | |
|
219 | |
public Object saveState(FacesContext context) |
220 | |
{ |
221 | 0 | if (!isTransient) |
222 | |
{ |
223 | 0 | if (_valueExpression instanceof StateHolder) |
224 | |
{ |
225 | 0 | Object[] state = new Object[2]; |
226 | 0 | state[0] = _valueExpression.getClass().getName(); |
227 | 0 | state[1] = ((StateHolder) _valueExpression).saveState(context); |
228 | 0 | return state; |
229 | |
} |
230 | |
else |
231 | |
{ |
232 | 0 | return _valueExpression; |
233 | |
} |
234 | |
} |
235 | 0 | return null; |
236 | |
} |
237 | |
|
238 | |
public void setTransient(boolean newTransientValue) |
239 | |
{ |
240 | 4 | isTransient = newTransientValue; |
241 | 4 | } |
242 | |
|
243 | |
public boolean isTransient() |
244 | |
{ |
245 | 0 | return isTransient; |
246 | |
} |
247 | |
|
248 | |
} |