1 |
772 |
jeremybenn |
/* OpenMBeanAttributeInfoSupport.java -- Open typed info about an attribute.
|
2 |
|
|
Copyright (C) 2006, 2007 Free Software Foundation, Inc.
|
3 |
|
|
|
4 |
|
|
This file is part of GNU Classpath.
|
5 |
|
|
|
6 |
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
7 |
|
|
it under the terms of the GNU General Public License as published by
|
8 |
|
|
the Free Software Foundation; either version 2, or (at your option)
|
9 |
|
|
any later version.
|
10 |
|
|
|
11 |
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
12 |
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
13 |
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
14 |
|
|
General Public License for more details.
|
15 |
|
|
|
16 |
|
|
You should have received a copy of the GNU General Public License
|
17 |
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
18 |
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
19 |
|
|
02110-1301 USA.
|
20 |
|
|
|
21 |
|
|
Linking this library statically or dynamically with other modules is
|
22 |
|
|
making a combined work based on this library. Thus, the terms and
|
23 |
|
|
conditions of the GNU General Public License cover the whole
|
24 |
|
|
combination.
|
25 |
|
|
|
26 |
|
|
As a special exception, the copyright holders of this library give you
|
27 |
|
|
permission to link this library with independent modules to produce an
|
28 |
|
|
executable, regardless of the license terms of these independent
|
29 |
|
|
modules, and to copy and distribute the resulting executable under
|
30 |
|
|
terms of your choice, provided that you also meet, for each linked
|
31 |
|
|
independent module, the terms and conditions of the license of that
|
32 |
|
|
module. An independent module is a module which is not derived from
|
33 |
|
|
or based on this library. If you modify this library, you may extend
|
34 |
|
|
this exception to your version of the library, but you are not
|
35 |
|
|
obligated to do so. If you do not wish to do so, delete this
|
36 |
|
|
exception statement from your version. */
|
37 |
|
|
|
38 |
|
|
package javax.management.openmbean;
|
39 |
|
|
|
40 |
|
|
import java.util.Collections;
|
41 |
|
|
import java.util.HashSet;
|
42 |
|
|
import java.util.Set;
|
43 |
|
|
|
44 |
|
|
import javax.management.MBeanAttributeInfo;
|
45 |
|
|
|
46 |
|
|
/**
|
47 |
|
|
* Describes an attribute of an open management bean.
|
48 |
|
|
*
|
49 |
|
|
* @author Andrew John Hughes (gnu_andrew@member.fsf.org)
|
50 |
|
|
* @since 1.5
|
51 |
|
|
*/
|
52 |
|
|
public class OpenMBeanAttributeInfoSupport
|
53 |
|
|
extends MBeanAttributeInfo
|
54 |
|
|
implements OpenMBeanAttributeInfo
|
55 |
|
|
{
|
56 |
|
|
|
57 |
|
|
/**
|
58 |
|
|
* Compatible with JDK 1.5
|
59 |
|
|
*/
|
60 |
|
|
private static final long serialVersionUID = -4867215622149721849L;
|
61 |
|
|
|
62 |
|
|
/**
|
63 |
|
|
* The open type of the attribute.
|
64 |
|
|
*/
|
65 |
|
|
private OpenType<?> openType;
|
66 |
|
|
|
67 |
|
|
/**
|
68 |
|
|
* The default value of the attribute (may be <code>null</code>).
|
69 |
|
|
*/
|
70 |
|
|
private Object defaultValue;
|
71 |
|
|
|
72 |
|
|
/**
|
73 |
|
|
* The possible legal values of the attribute (may be <code>null</code>).
|
74 |
|
|
*/
|
75 |
|
|
private Set<?> legalValues;
|
76 |
|
|
|
77 |
|
|
/**
|
78 |
|
|
* The minimum value of the attribute (may be <code>null</code>).
|
79 |
|
|
*/
|
80 |
|
|
private Comparable<?> minValue;
|
81 |
|
|
|
82 |
|
|
/**
|
83 |
|
|
* The maximum value of the attribute (may be <code>null</code>).
|
84 |
|
|
*/
|
85 |
|
|
private Comparable<?> maxValue;
|
86 |
|
|
|
87 |
|
|
/**
|
88 |
|
|
* The hash code of this instance.
|
89 |
|
|
*/
|
90 |
|
|
private transient Integer hashCode;
|
91 |
|
|
|
92 |
|
|
/**
|
93 |
|
|
* The <code>toString()</code> result of this instance.
|
94 |
|
|
*/
|
95 |
|
|
private transient String string;
|
96 |
|
|
|
97 |
|
|
/**
|
98 |
|
|
* Constructs a new {@link OpenMBeanAttributeInfo} using the
|
99 |
|
|
* specified name, description, open type and access properties.
|
100 |
|
|
* The name, description and open type may not be <code>null</code>
|
101 |
|
|
* and the name and description may not be equal to the empty
|
102 |
|
|
* string.
|
103 |
|
|
*
|
104 |
|
|
* @param name the name of the attribute.
|
105 |
|
|
* @param desc a description of the attribute.
|
106 |
|
|
* @param type the open type of the attribute.
|
107 |
|
|
* @param isReadable true if the attribute's value can be read.
|
108 |
|
|
* @param isWritable true if the attribute's value can be changed.
|
109 |
|
|
* @param isIs true if the attribute uses an accessor of the form isXXX.
|
110 |
|
|
* @throws IllegalArgumentException if the name, description or
|
111 |
|
|
* open type are <code>null</code>
|
112 |
|
|
* or the name or description are
|
113 |
|
|
* the empty string.
|
114 |
|
|
*/
|
115 |
|
|
public OpenMBeanAttributeInfoSupport(String name, String desc, OpenType<?> type,
|
116 |
|
|
boolean isReadable, boolean isWritable,
|
117 |
|
|
boolean isIs)
|
118 |
|
|
{
|
119 |
|
|
super(name, type == null ? null : type.getClassName(), desc, isReadable,
|
120 |
|
|
isWritable, isIs);
|
121 |
|
|
if (name == null)
|
122 |
|
|
throw new IllegalArgumentException("The name may not be null.");
|
123 |
|
|
if (desc == null)
|
124 |
|
|
throw new IllegalArgumentException("The description may not be null.");
|
125 |
|
|
if (type == null)
|
126 |
|
|
throw new IllegalArgumentException("The type may not be null.");
|
127 |
|
|
if (name.length() == 0)
|
128 |
|
|
throw new IllegalArgumentException("The name may not be the empty string.");
|
129 |
|
|
if (desc.length() == 0)
|
130 |
|
|
throw new IllegalArgumentException("The description may not be the " +
|
131 |
|
|
"empty string.");
|
132 |
|
|
}
|
133 |
|
|
|
134 |
|
|
/**
|
135 |
|
|
* Constructs a new {@link OpenMBeanAttributeInfo} using the
|
136 |
|
|
* specified name, description, open type and default value. The
|
137 |
|
|
* name, description and open type cannot be <code>null</code> and
|
138 |
|
|
* the name and description may not be equal to the empty string.
|
139 |
|
|
* The default value may be <code>null</code>. If non-null, it must
|
140 |
|
|
* be a valid value of the given open type. Default values are not
|
141 |
|
|
* applicable to the open types, {@link ArrayType} and {@link
|
142 |
|
|
* TabularType}.
|
143 |
|
|
*
|
144 |
|
|
* @param name the name of the attribute.
|
145 |
|
|
* @param desc a description of the attribute.
|
146 |
|
|
* @param type the open type of the attribute.
|
147 |
|
|
* @param isReadable true if the attribute's value can be read.
|
148 |
|
|
* @param isWritable true if the attribute's value can be changed.
|
149 |
|
|
* @param isIs true if the attribute uses an accessor of the form isXXX.
|
150 |
|
|
* @param defaultValue the default value of the attribute.
|
151 |
|
|
* @throws IllegalArgumentException if the name, description or
|
152 |
|
|
* open type are <code>null</code>
|
153 |
|
|
* or the name or description are
|
154 |
|
|
* the empty string.
|
155 |
|
|
* @throws OpenDataException if <code>defaultValue<code> is non-null
|
156 |
|
|
* and is either not a value of the given
|
157 |
|
|
* open type or the open type is an instance
|
158 |
|
|
* of {@link ArrayType} or {@link TabularType}.
|
159 |
|
|
*/
|
160 |
|
|
public <T> OpenMBeanAttributeInfoSupport(String name, String desc, OpenType<T> type,
|
161 |
|
|
boolean isReadable, boolean isWritable,
|
162 |
|
|
boolean isIs, T defaultValue)
|
163 |
|
|
throws OpenDataException
|
164 |
|
|
{
|
165 |
|
|
this(name, desc, type, isReadable, isWritable, isIs, defaultValue, null);
|
166 |
|
|
}
|
167 |
|
|
|
168 |
|
|
/**
|
169 |
|
|
* <p>
|
170 |
|
|
* Constructs a new {@link OpenMBeanAttributeInfo} using the
|
171 |
|
|
* specified name, description, open type, access properties,
|
172 |
|
|
* default, maximum and minimum values. The name, description
|
173 |
|
|
* and open type cannot be <code>null</code> and the name and
|
174 |
|
|
* description may not be equal to the empty string. The
|
175 |
|
|
* default, maximum and minimum values may be <code>null</code>.
|
176 |
|
|
* The following conditions apply when the attributes mentioned
|
177 |
|
|
* are non-null:
|
178 |
|
|
* </p>
|
179 |
|
|
* <ul>
|
180 |
|
|
* <li>The values must be valid values for the given open type.</li>
|
181 |
|
|
* <li>Default values are not applicable to the open types, {@link
|
182 |
|
|
* ArrayType} and {@link TabularType}.</li>
|
183 |
|
|
* <li>The minimum value must be smaller than or equal to the maximum value
|
184 |
|
|
* (literally, <code>minValue.compareTo(maxValue) <= 0</code>.</li>
|
185 |
|
|
* <li>The minimum value must be smaller than or equal to the default value
|
186 |
|
|
* (literally, <code>minValue.compareTo(defaultValue) <= 0</code>.</li>
|
187 |
|
|
* <li>The default value must be smaller than or equal to the maximum value
|
188 |
|
|
* (literally, <code>defaultValue.compareTo(maxValue) <= 0</code>.</li>
|
189 |
|
|
* </ul>
|
190 |
|
|
*
|
191 |
|
|
* @param name the name of the attribute.
|
192 |
|
|
* @param desc a description of the attribute.
|
193 |
|
|
* @param type the open type of the attribute.
|
194 |
|
|
* @param isReadable true if the attribute's value can be read.
|
195 |
|
|
* @param isWritable true if the attribute's value can be changed.
|
196 |
|
|
* @param isIs true if the attribute uses an accessor of the form isXXX.
|
197 |
|
|
* @param defaultValue the default value of the attribute, or <code>null</code>.
|
198 |
|
|
* @param minimumValue the minimum value of the attribute, or <code>null</code>.
|
199 |
|
|
* @param maximumValue the maximum value of the attribute, or <code>null</code>.
|
200 |
|
|
* @throws IllegalArgumentException if the name, description or
|
201 |
|
|
* open type are <code>null</code>
|
202 |
|
|
* or the name or description are
|
203 |
|
|
* the empty string.
|
204 |
|
|
* @throws OpenDataException if any condition in the list above is broken.
|
205 |
|
|
*/
|
206 |
|
|
@SuppressWarnings("unchecked")
|
207 |
|
|
public <T> OpenMBeanAttributeInfoSupport(String name, String desc, OpenType<T> type,
|
208 |
|
|
boolean isReadable, boolean isWritable,
|
209 |
|
|
boolean isIs, T defaultValue,
|
210 |
|
|
Comparable<T> minimumValue,
|
211 |
|
|
Comparable<T> maximumValue)
|
212 |
|
|
throws OpenDataException
|
213 |
|
|
{
|
214 |
|
|
this(name, desc, type, isReadable, isWritable, isIs);
|
215 |
|
|
if (defaultValue != null && !(type.isValue(defaultValue)))
|
216 |
|
|
throw new OpenDataException("The default value is not a member of the " +
|
217 |
|
|
"open type given.");
|
218 |
|
|
if (minimumValue != null && !(type.isValue(minimumValue)))
|
219 |
|
|
throw new OpenDataException("The minimum value is not a member of the " +
|
220 |
|
|
"open type given.");
|
221 |
|
|
if (maximumValue != null && !(type.isValue(maximumValue)))
|
222 |
|
|
throw new OpenDataException("The maximum value is not a member of the " +
|
223 |
|
|
"open type given.");
|
224 |
|
|
if (defaultValue != null && (type instanceof ArrayType ||
|
225 |
|
|
type instanceof TabularType))
|
226 |
|
|
throw new OpenDataException("Default values are not applicable for " +
|
227 |
|
|
"array or tabular types.");
|
228 |
|
|
if (minimumValue != null && maximumValue != null
|
229 |
|
|
&& minimumValue.compareTo((T) maximumValue) > 0)
|
230 |
|
|
throw new OpenDataException("The minimum value is greater than the " +
|
231 |
|
|
"maximum.");
|
232 |
|
|
if (minimumValue != null && defaultValue != null
|
233 |
|
|
&& minimumValue.compareTo(defaultValue) > 0)
|
234 |
|
|
throw new OpenDataException("The minimum value is greater than the " +
|
235 |
|
|
"default.");
|
236 |
|
|
if (defaultValue != null && maximumValue != null
|
237 |
|
|
&& maximumValue.compareTo(defaultValue) < 0)
|
238 |
|
|
throw new OpenDataException("The default value is greater than the " +
|
239 |
|
|
"maximum.");
|
240 |
|
|
|
241 |
|
|
openType = type;
|
242 |
|
|
this.defaultValue = defaultValue;
|
243 |
|
|
minValue = minimumValue;
|
244 |
|
|
maxValue = maximumValue;
|
245 |
|
|
}
|
246 |
|
|
|
247 |
|
|
/**
|
248 |
|
|
* <p>
|
249 |
|
|
* Constructs a new {@link OpenMBeanAttributeInfo} using the
|
250 |
|
|
* specified name, description, open type, access properties, default
|
251 |
|
|
* value and set of legal values. The name, description and open type
|
252 |
|
|
* cannot be <code>null</code> and the name and description may not be
|
253 |
|
|
* equal to the empty string. The default, maximum and minimum values
|
254 |
|
|
* may be <code>null</code>. The following conditions apply when the
|
255 |
|
|
* attributes mentioned are non-null:
|
256 |
|
|
* </p>
|
257 |
|
|
* <ul>
|
258 |
|
|
* <li>The default value and each of the legal values must be a valid
|
259 |
|
|
* value for the given open type.</li>
|
260 |
|
|
* <li>Default and legal values are not applicable to the open types, {@link
|
261 |
|
|
* ArrayType} and {@link TabularType}.</li>
|
262 |
|
|
* <li>The default value is not in the set of legal values.</li>
|
263 |
|
|
* </ul>
|
264 |
|
|
* <p>
|
265 |
|
|
* The legal values are copied from the array into a unmodifiable set,
|
266 |
|
|
* so future modifications to the array have no effect.
|
267 |
|
|
* </p>
|
268 |
|
|
*
|
269 |
|
|
* @param name the name of the attribute.
|
270 |
|
|
* @param desc a description of the attribute.
|
271 |
|
|
* @param type the open type of the attribute.
|
272 |
|
|
* @param isReadable true if the attribute's value can be read.
|
273 |
|
|
* @param isWritable true if the attribute's value can be changed.
|
274 |
|
|
* @param isIs true if the attribute uses an accessor of the form isXXX.
|
275 |
|
|
* @param defaultValue the default value of the attribute, or <code>null</code>.
|
276 |
|
|
* @param legalValues the legal values of the attribute. May be
|
277 |
|
|
* <code>null</code> or an empty array.
|
278 |
|
|
* @throws IllegalArgumentException if the name, description or
|
279 |
|
|
* open type are <code>null</code>
|
280 |
|
|
* or the name or description are
|
281 |
|
|
* the empty string.
|
282 |
|
|
* @throws OpenDataException if any condition in the list above is broken.
|
283 |
|
|
*/
|
284 |
|
|
public <T> OpenMBeanAttributeInfoSupport(String name, String desc, OpenType<T> type,
|
285 |
|
|
boolean isReadable, boolean isWritable,
|
286 |
|
|
boolean isIs, T defaultValue,
|
287 |
|
|
T[] legalValues)
|
288 |
|
|
throws OpenDataException
|
289 |
|
|
{
|
290 |
|
|
this(name, desc, type, isReadable, isWritable, isIs);
|
291 |
|
|
if (defaultValue != null && !(type.isValue(defaultValue)))
|
292 |
|
|
throw new OpenDataException("The default value is not a member of the " +
|
293 |
|
|
"open type given.");
|
294 |
|
|
if (defaultValue != null && (type instanceof ArrayType ||
|
295 |
|
|
type instanceof TabularType))
|
296 |
|
|
throw new OpenDataException("Default values are not applicable for " +
|
297 |
|
|
"array or tabular types.");
|
298 |
|
|
if (legalValues != null && (type instanceof ArrayType ||
|
299 |
|
|
type instanceof TabularType))
|
300 |
|
|
throw new OpenDataException("Legal values are not applicable for " +
|
301 |
|
|
"array or tabular types.");
|
302 |
|
|
if (legalValues != null && legalValues.length > 0)
|
303 |
|
|
{
|
304 |
|
|
Set<T> lv = new HashSet<T>(legalValues.length);
|
305 |
|
|
for (int a = 0; a < legalValues.length; ++a)
|
306 |
|
|
{
|
307 |
|
|
if (legalValues[a] != null &&
|
308 |
|
|
!(type.isValue(legalValues[a])))
|
309 |
|
|
throw new OpenDataException("The legal value, "
|
310 |
|
|
+ legalValues[a] +
|
311 |
|
|
"is not a member of the " +
|
312 |
|
|
"open type given.");
|
313 |
|
|
lv.add(legalValues[a]);
|
314 |
|
|
}
|
315 |
|
|
if (defaultValue != null && !(lv.contains(defaultValue)))
|
316 |
|
|
throw new OpenDataException("The default value is not in the set " +
|
317 |
|
|
"of legal values.");
|
318 |
|
|
this.legalValues = Collections.unmodifiableSet(lv);
|
319 |
|
|
}
|
320 |
|
|
openType = type;
|
321 |
|
|
this.defaultValue = defaultValue;
|
322 |
|
|
}
|
323 |
|
|
|
324 |
|
|
/**
|
325 |
|
|
* Compares this attribute with the supplied object. This returns
|
326 |
|
|
* true iff the object is an instance of {@link OpenMBeanAttributeInfo}
|
327 |
|
|
* with an equal name and open type and the same default, minimum,
|
328 |
|
|
* maximum and legal values and the same access properties.
|
329 |
|
|
*
|
330 |
|
|
* @param obj the object to compare.
|
331 |
|
|
* @return true if the object is a {@link OpenMBeanAttributeInfo}
|
332 |
|
|
* instance,
|
333 |
|
|
* <code>name.equals(object.getName())</code>,
|
334 |
|
|
* <code>openType.equals(object.getOpenType())</code>,
|
335 |
|
|
* <code>isRead == object.isReadable()</code>,
|
336 |
|
|
* <code>isWrite == object.isWritable()</code>,
|
337 |
|
|
* <code>isIs == object.isIs()</code>,
|
338 |
|
|
* <code>defaultValue.equals(object.getDefaultValue())</code>,
|
339 |
|
|
* <code>minValue.equals(object.getMinValue())</code>,
|
340 |
|
|
* <code>maxValue.equals(object.getMaxValue())</code>,
|
341 |
|
|
* and <code>legalValues.equals(object.getLegalValues())</code>.
|
342 |
|
|
*/
|
343 |
|
|
public boolean equals(Object obj)
|
344 |
|
|
{
|
345 |
|
|
if (!(obj instanceof OpenMBeanAttributeInfo))
|
346 |
|
|
return false;
|
347 |
|
|
OpenMBeanAttributeInfo o = (OpenMBeanAttributeInfo) obj;
|
348 |
|
|
return getName().equals(o.getName()) &&
|
349 |
|
|
openType.equals(o.getOpenType()) &&
|
350 |
|
|
isReadable() == o.isReadable() &&
|
351 |
|
|
isWritable() == o.isWritable() &&
|
352 |
|
|
isIs() == o.isIs() &&
|
353 |
|
|
(defaultValue == null ? o.getDefaultValue() == null :
|
354 |
|
|
defaultValue.equals(o.getDefaultValue())) &&
|
355 |
|
|
(minValue == null ? o.getMinValue() == null :
|
356 |
|
|
minValue.equals(o.getMinValue())) &&
|
357 |
|
|
(maxValue == null ? o.getMaxValue() == null :
|
358 |
|
|
maxValue.equals(o.getMaxValue())) &&
|
359 |
|
|
(legalValues == null ? o.getLegalValues() == null :
|
360 |
|
|
legalValues.equals(o.getLegalValues()));
|
361 |
|
|
}
|
362 |
|
|
|
363 |
|
|
/**
|
364 |
|
|
* Returns the default value of this attribute, or <code>null</code>
|
365 |
|
|
* if there is no default value.
|
366 |
|
|
*
|
367 |
|
|
* @return the default value of the attribute, or <code>null</code>
|
368 |
|
|
* if there is no default.
|
369 |
|
|
*/
|
370 |
|
|
public Object getDefaultValue()
|
371 |
|
|
{
|
372 |
|
|
return defaultValue;
|
373 |
|
|
}
|
374 |
|
|
|
375 |
|
|
/**
|
376 |
|
|
* Returns a {@link java.util.Set} enumerating the legal values
|
377 |
|
|
* of this attribute, or <code>null</code> if no such limited
|
378 |
|
|
* set exists for this attribute.
|
379 |
|
|
*
|
380 |
|
|
* @return a set of legal values, or <code>null</code> if no such
|
381 |
|
|
* set exists.
|
382 |
|
|
*/
|
383 |
|
|
public Set<?> getLegalValues()
|
384 |
|
|
{
|
385 |
|
|
return legalValues;
|
386 |
|
|
}
|
387 |
|
|
|
388 |
|
|
/**
|
389 |
|
|
* Returns the maximum value of this attribute, or <code>null</code>
|
390 |
|
|
* if there is no maximum.
|
391 |
|
|
*
|
392 |
|
|
* @return the maximum value, or <code>null</code> if none exists.
|
393 |
|
|
*/
|
394 |
|
|
public Comparable<?> getMaxValue()
|
395 |
|
|
{
|
396 |
|
|
return maxValue;
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
/**
|
400 |
|
|
* Returns the minimum value of this attribute, or <code>null</code>
|
401 |
|
|
* if there is no minimum.
|
402 |
|
|
*
|
403 |
|
|
* @return the minimum value, or <code>null</code> if none exists.
|
404 |
|
|
*/
|
405 |
|
|
public Comparable<?> getMinValue()
|
406 |
|
|
{
|
407 |
|
|
return minValue;
|
408 |
|
|
}
|
409 |
|
|
|
410 |
|
|
/**
|
411 |
|
|
* Returns the open type instance which represents the type of this
|
412 |
|
|
* attribute.
|
413 |
|
|
*
|
414 |
|
|
* @return the open type of this attribute.
|
415 |
|
|
*/
|
416 |
|
|
public OpenType<?> getOpenType()
|
417 |
|
|
{
|
418 |
|
|
return openType;
|
419 |
|
|
}
|
420 |
|
|
|
421 |
|
|
/**
|
422 |
|
|
* Returns true if this attribute has a default value
|
423 |
|
|
* (i.e. the value is non-null).
|
424 |
|
|
*
|
425 |
|
|
* @return true if this attribute has a default.
|
426 |
|
|
*/
|
427 |
|
|
public boolean hasDefaultValue()
|
428 |
|
|
{
|
429 |
|
|
return defaultValue != null;
|
430 |
|
|
}
|
431 |
|
|
|
432 |
|
|
/**
|
433 |
|
|
* <p>
|
434 |
|
|
* Returns the hashcode of the attribute information as the sum of
|
435 |
|
|
* the hashcodes of the name, open type, default value, maximum
|
436 |
|
|
* value, minimum value and the set of legal values.
|
437 |
|
|
* </p>
|
438 |
|
|
* <p>
|
439 |
|
|
* As instances of this class are immutable, the hash code
|
440 |
|
|
* is computed just once for each instance and reused
|
441 |
|
|
* throughout its life.
|
442 |
|
|
* </p>
|
443 |
|
|
*
|
444 |
|
|
* @return the hashcode of the attribute information.
|
445 |
|
|
*/
|
446 |
|
|
public int hashCode()
|
447 |
|
|
{
|
448 |
|
|
if (hashCode == null)
|
449 |
|
|
hashCode = Integer.valueOf(getName().hashCode() +
|
450 |
|
|
openType.hashCode() +
|
451 |
|
|
Boolean.valueOf(isReadable()).hashCode() +
|
452 |
|
|
(2 *
|
453 |
|
|
Boolean.valueOf(isWritable()).hashCode()) +
|
454 |
|
|
(4 * Boolean.valueOf(isIs()).hashCode()) +
|
455 |
|
|
(defaultValue == null ? 0 :
|
456 |
|
|
defaultValue.hashCode()) +
|
457 |
|
|
(minValue == null ? 0 :
|
458 |
|
|
minValue.hashCode()) +
|
459 |
|
|
(maxValue == null ? 0 :
|
460 |
|
|
maxValue.hashCode()) +
|
461 |
|
|
(legalValues == null ? 0 :
|
462 |
|
|
legalValues.hashCode()));
|
463 |
|
|
return hashCode.intValue();
|
464 |
|
|
}
|
465 |
|
|
|
466 |
|
|
/**
|
467 |
|
|
* Returns true if there is a set of legal values for this
|
468 |
|
|
* attribute (i.e. the value is non-null).
|
469 |
|
|
*
|
470 |
|
|
* @return true if a set of legal values exists for this
|
471 |
|
|
* attribute.
|
472 |
|
|
*/
|
473 |
|
|
public boolean hasLegalValues()
|
474 |
|
|
{
|
475 |
|
|
return legalValues != null;
|
476 |
|
|
}
|
477 |
|
|
|
478 |
|
|
/**
|
479 |
|
|
* Returns true if there is a maximum value for this attribute
|
480 |
|
|
* (i.e. the value is non-null).
|
481 |
|
|
*
|
482 |
|
|
* @return true if a maximum value exists for this attribute.
|
483 |
|
|
*/
|
484 |
|
|
public boolean hasMaxValue()
|
485 |
|
|
{
|
486 |
|
|
return maxValue != null;
|
487 |
|
|
}
|
488 |
|
|
|
489 |
|
|
/**
|
490 |
|
|
* Returns true if there is a minimum value for this attribute.
|
491 |
|
|
* (i.e. the value is non-null).
|
492 |
|
|
*
|
493 |
|
|
* @return true if a minimum value exists for this attribute.
|
494 |
|
|
*/
|
495 |
|
|
public boolean hasMinValue()
|
496 |
|
|
{
|
497 |
|
|
return minValue != null;
|
498 |
|
|
}
|
499 |
|
|
|
500 |
|
|
/**
|
501 |
|
|
* Returns true if the specified object is a valid value for
|
502 |
|
|
* this attribute.
|
503 |
|
|
*
|
504 |
|
|
* @param obj the object to test.
|
505 |
|
|
* @return true if <code>obj</code> is a valid value for this
|
506 |
|
|
* attribute.
|
507 |
|
|
*/
|
508 |
|
|
public boolean isValue(Object obj)
|
509 |
|
|
{
|
510 |
|
|
return openType.isValue(obj);
|
511 |
|
|
}
|
512 |
|
|
|
513 |
|
|
/**
|
514 |
|
|
* <p>
|
515 |
|
|
* Returns a textual representation of this instance. This
|
516 |
|
|
* is constructed using the class name
|
517 |
|
|
* (<code>javax.management.openmbean.OpenMBeanAttributeInfo</code>)
|
518 |
|
|
* along with the name, open type, access properties, default,
|
519 |
|
|
* minimum, maximum and legal values of the attribute.
|
520 |
|
|
* </p>
|
521 |
|
|
* <p>
|
522 |
|
|
* As instances of this class are immutable, the return value
|
523 |
|
|
* is computed just once for each instance and reused
|
524 |
|
|
* throughout its life.
|
525 |
|
|
* </p>
|
526 |
|
|
*
|
527 |
|
|
* @return a @link{java.lang.String} instance representing
|
528 |
|
|
* the instance in textual form.
|
529 |
|
|
*/
|
530 |
|
|
public String toString()
|
531 |
|
|
{
|
532 |
|
|
if (string == null)
|
533 |
|
|
string = getClass().getName()
|
534 |
|
|
+ "[name=" + getName()
|
535 |
|
|
+ ",openType=" + openType
|
536 |
|
|
+ ",isReadable=" + isReadable()
|
537 |
|
|
+ ",isWritable=" + isWritable()
|
538 |
|
|
+ ",isIs=" + isIs()
|
539 |
|
|
+ ",defaultValue=" + defaultValue
|
540 |
|
|
+ ",minValue=" + minValue
|
541 |
|
|
+ ",maxValue=" + maxValue
|
542 |
|
|
+ ",legalValues=" + legalValues
|
543 |
|
|
+ "]";
|
544 |
|
|
return string;
|
545 |
|
|
}
|
546 |
|
|
|
547 |
|
|
}
|