1 /*
2 * Copyright (c) 1995, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24 */
25
26 package org.omg.CORBA;
27
28 import org.omg.CORBA.portable.*;
29 import org.omg.CORBA.ORBPackage.InvalidName;
30
31 import java.util.Properties;
32 import java.applet.Applet;
33 import java.io.File;
34 import java.io.FileInputStream;
35
36 import java.security.AccessController;
37 import java.security.PrivilegedAction;
38
39 /**
40 * A class providing APIs for the CORBA Object Request Broker
41 * features. The <code>ORB</code> class also provides
42 * "pluggable ORB implementation" APIs that allow another vendor's ORB
43 * implementation to be used.
44 * <P>
45 * An ORB makes it possible for CORBA objects to communicate
46 * with each other by connecting objects making requests (clients) with
47 * objects servicing requests (servers).
48 * <P>
49 *
50 * The <code>ORB</code> class, which
51 * encapsulates generic CORBA functionality, does the following:
52 * (Note that items 5 and 6, which include most of the methods in
53 * the class <code>ORB</code>, are typically used with the <code>Dynamic Invocation
54 * Interface</code> (DII) and the <code>Dynamic Skeleton Interface</code>
55 * (DSI).
56 * These interfaces may be used by a developer directly, but
57 * most commonly they are used by the ORB internally and are
58 * not seen by the general programmer.)
59 * <OL>
60 * <li> initializes the ORB implementation by supplying values for
61 * predefined properties and environmental parameters
62 * <li> obtains initial object references to services such as
63 * the NameService using the method <code>resolve_initial_references</code>
64 * <li> converts object references to strings and back
65 * <li> connects the ORB to a servant (an instance of a CORBA object
66 * implementation) and disconnects the ORB from a servant
67 * <li> creates objects such as
68 * <ul>
69 * <li><code>TypeCode</code>
70 * <li><code>Any</code>
71 * <li><code>NamedValue</code>
72 * <li><code>Context</code>
73 * <li><code>Environment</code>
74 * <li>lists (such as <code>NVList</code>) containing these objects
75 * </ul>
76 * <li> sends multiple messages in the DII
77 * </OL>
78 *
79 * <P>
80 * The <code>ORB</code> class can be used to obtain references to objects
81 * implemented anywhere on the network.
82 * <P>
83 * An application or applet gains access to the CORBA environment
84 * by initializing itself into an <code>ORB</code> using one of
85 * three <code>init</code> methods. Two of the three methods use the properties
86 * (associations of a name with a value) shown in the
87 * table below.<BR>
88 * <TABLE BORDER=1 SUMMARY="Standard Java CORBA Properties">
89 * <TR><TH>Property Name</TH> <TH>Property Value</TH></TR>
90 * <CAPTION>Standard Java CORBA Properties:</CAPTION>
91 * <TR><TD>org.omg.CORBA.ORBClass</TD>
92 * <TD>class name of an ORB implementation</TD></TR>
93 * <TR><TD>org.omg.CORBA.ORBSingletonClass</TD>
94 * <TD>class name of the ORB returned by <code>init()</code></TD></TR>
95 * </TABLE>
96 * <P>
97 * These properties allow a different vendor's <code>ORB</code>
98 * implementation to be "plugged in."
99 * <P>
100 * When an ORB instance is being created, the class name of the ORB
101 * implementation is located using
102 * the following standard search order:<P>
103 *
104 * <OL>
105 * <LI>check in Applet parameter or application string array, if any
106 *
107 * <LI>check in properties parameter, if any
108 *
109 * <LI>check in the System properties
110 *
111 * <LI>check in the orb.properties file located in the user.home
112 * directory (if any)
113 *
114 * <LI>check in the orb.properties file located in the java.home/lib
115 * directory (if any)
116 *
117 * <LI>fall back on a hardcoded default behavior (use the Java IDL
118 * implementation)
119 * </OL>
120 * <P>
121 * Note that Java IDL provides a default implementation for the
122 * fully-functional ORB and for the Singleton ORB. When the method
123 * <code>init</code> is given no parameters, the default Singleton
124 * ORB is returned. When the method <code>init</code> is given parameters
125 * but no ORB class is specified, the Java IDL ORB implementation
126 * is returned.
127 * <P>
128 * The following code fragment creates an <code>ORB</code> object
129 * initialized with the default ORB Singleton.
130 * This ORB has a
131 * restricted implementation to prevent malicious applets from doing
132 * anything beyond creating typecodes.
133 * It is called a singleton
134 * because there is only one instance for an entire virtual machine.
135 * <PRE>
136 * ORB orb = ORB.init();
137 * </PRE>
138 * <P>
139 * The following code fragment creates an <code>ORB</code> object
140 * for an application. The parameter <code>args</code>
141 * represents the arguments supplied to the application's <code>main</code>
142 * method. Since the property specifies the ORB class to be
143 * "SomeORBImplementation", the new ORB will be initialized with
144 * that ORB implementation. If p had been null,
145 * and the arguments had not specified an ORB class,
146 * the new ORB would have been
147 * initialized with the default Java IDL implementation.
148 * <PRE>
149 * Properties p = new Properties();
150 * p.put("org.omg.CORBA.ORBClass", "SomeORBImplementation");
151 * ORB orb = ORB.init(args, p);
152 * </PRE>
153 * <P>
154 * The following code fragment creates an <code>ORB</code> object
155 * for the applet supplied as the first parameter. If the given
156 * applet does not specify an ORB class, the new ORB will be
157 * initialized with the default Java IDL implementation.
158 * <PRE>
159 * ORB orb = ORB.init(myApplet, null);
160 * </PRE>
161 * <P>
162 * An application or applet can be initialized in one or more ORBs.
163 * ORB initialization is a bootstrap call into the CORBA world.
164 * @since JDK1.2
165 */
166 abstract public class ORB {
167
168 //
169 // This is the ORB implementation used when nothing else is specified.
170 // Whoever provides this class customizes this string to
171 // point at their ORB implementation.
172 //
173 private static final String ORBClassKey = "org.omg.CORBA.ORBClass";
174 private static final String ORBSingletonClassKey = "org.omg.CORBA.ORBSingletonClass";
175
176 //
177 // The global instance of the singleton ORB implementation which
178 // acts as a factory for typecodes for generated Helper classes.
179 // TypeCodes should be immutable since they may be shared across
180 // different security contexts (applets). There should be no way to
181 // use a TypeCode as a storage depot for illicitly passing
182 // information or Java objects between different security contexts.
183 //
184 static private ORB singleton;
185
186 // Get System property
187 private static String getSystemProperty(final String name) {
188
189 // This will not throw a SecurityException because this
190 // class was loaded from rt.jar using the bootstrap classloader.
191 String propValue = (String) AccessController.doPrivileged(
192 new PrivilegedAction() {
193 public java.lang.Object run() {
194 return System.getProperty(name);
195 }
196 }
197 );
198
199 return propValue;
200 }
201
202 // Get property from orb.properties in either <user.home> or <java-home>/lib
203 // directories.
204 private static String getPropertyFromFile(final String name) {
205 // This will not throw a SecurityException because this
206 // class was loaded from rt.jar using the bootstrap classloader.
207
208 String propValue = (String) AccessController.doPrivileged(
209 new PrivilegedAction() {
210 private Properties getFileProperties( String fileName ) {
211 try {
212 File propFile = new File( fileName ) ;
213 if (!propFile.exists())
214 return null ;
215
216 Properties props = new Properties() ;
217 FileInputStream fis = new FileInputStream(propFile);
218 try {
219 props.load( fis );
220 } finally {
221 fis.close() ;
222 }
223
224 return props ;
225 } catch (Exception exc) {
226 return null ;
227 }
228 }
229
230 public java.lang.Object run() {
231 String userHome = System.getProperty("user.home");
232 String fileName = userHome + File.separator +
233 "orb.properties" ;
234 Properties props = getFileProperties( fileName ) ;
235
236 if (props != null) {
237 String value = props.getProperty( name ) ;
238 if (value != null)
239 return value ;
240 }
241
242 String javaHome = System.getProperty("java.home");
243 fileName = javaHome + File.separator
244 + "lib" + File.separator + "orb.properties";
245 props = getFileProperties( fileName ) ;
246
247 if (props == null)
248 return null ;
249 else
250 return props.getProperty( name ) ;
251 }
252 }
253 );
254
255 return propValue;
256 }
257
258 /**
259 * Returns the <code>ORB</code> singleton object. This method always returns the
260 * same ORB instance, which is an instance of the class described by the
261 * <code>org.omg.CORBA.ORBSingletonClass</code> system property.
262 * <P>
263 * This no-argument version of the method <code>init</code> is used primarily
264 * as a factory for <code>TypeCode</code> objects, which are used by
265 * <code>Helper</code> classes to implement the method <code>type</code>.
266 * It is also used to create <code>Any</code> objects that are used to
267 * describe <code>union</code> labels (as part of creating a <code>
268 * TypeCode</code> object for a <code>union</code>).
269 * <P>
270 * This method is not intended to be used by applets, and in the event
271 * that it is called in an applet environment, the ORB it returns
272 * is restricted so that it can be used only as a factory for
273 * <code>TypeCode</code> objects. Any <code>TypeCode</code> objects
274 * it produces can be safely shared among untrusted applets.
275 * <P>
276 * If an ORB is created using this method from an applet,
277 * a system exception will be thrown if
278 * methods other than those for
279 * creating <code>TypeCode</code> objects are invoked.
280 *
281 * @return the singleton ORB
282 */
283 public static synchronized ORB init() {
284 if (singleton == null) {
285 String className = getSystemProperty(ORBSingletonClassKey);
286 if (className == null)
287 className = getPropertyFromFile(ORBSingletonClassKey);
288 if (className == null) {
289 singleton = new com.sun.corba.se.impl.orb.ORBSingleton();
290 } else {
291 singleton = create_impl(className);
292 }
293 }
294 return singleton;
295 }
296
297 private static ORB create_impl(String className) {
298
299 ClassLoader cl = Thread.currentThread().getContextClassLoader();
300 if (cl == null)
301 cl = ClassLoader.getSystemClassLoader();
302
303 try {
304 return (ORB) Class.forName(className, true, cl).newInstance();
305 } catch (Throwable ex) {
306 SystemException systemException = new INITIALIZE(
307 "can't instantiate default ORB implementation " + className);
308 systemException.initCause(ex);
309 throw systemException;
310 }
311 }
312
313 /**
314 * Creates a new <code>ORB</code> instance for a standalone
315 * application. This method may be called from applications
316 * only and returns a new fully functional <code>ORB</code> object
317 * each time it is called.
318 * @param args command-line arguments for the application's <code>main</code>
319 * method; may be <code>null</code>
320 * @param props application-specific properties; may be <code>null</code>
321 * @return the newly-created ORB instance
322 */
323 public static ORB init(String[] args, Properties props) {
324 //
325 // Note that there is no standard command-line argument for
326 // specifying the default ORB implementation. For an
327 // application you can choose an implementation either by
328 // setting the CLASSPATH to pick a different org.omg.CORBA
329 // and it's baked-in ORB implementation default or by
330 // setting an entry in the properties object or in the
331 // system properties.
332 //
333 String className = null;
334 ORB orb;
335
336 if (props != null)
337 className = props.getProperty(ORBClassKey);
338 if (className == null)
339 className = getSystemProperty(ORBClassKey);
340 if (className == null)
341 className = getPropertyFromFile(ORBClassKey);
342 if (className == null) {
343 orb = new com.sun.corba.se.impl.orb.ORBImpl();
344 } else {
345 orb = create_impl(className);
346 }
347
348 orb.set_parameters(args, props);
349 return orb;
350 }
351
352
353 /**
354 * Creates a new <code>ORB</code> instance for an applet. This
355 * method may be called from applets only and returns a new
356 * fully-functional <code>ORB</code> object each time it is called.
357 * @param app the applet; may be <code>null</code>
358 * @param props applet-specific properties; may be <code>null</code>
359 * @return the newly-created ORB instance
360 */
361 public static ORB init(Applet app, Properties props) {
362 String className;
363 ORB orb;
364
365 className = app.getParameter(ORBClassKey);
366 if (className == null && props != null)
367 className = props.getProperty(ORBClassKey);
368 if (className == null)
369 className = getSystemProperty(ORBClassKey);
370 if (className == null)
371 className = getPropertyFromFile(ORBClassKey);
372 if (className == null) {
373 orb = new com.sun.corba.se.impl.orb.ORBImpl();
374 } else {
375 orb = create_impl(className);
376 }
377
378 orb.set_parameters(app, props);
379 return orb;
380 }
381
382 /**
383 * Allows the ORB implementation to be initialized with the given
384 * parameters and properties. This method, used in applications only,
385 * is implemented by subclass ORB implementations and called
386 * by the appropriate <code>init</code> method to pass in its parameters.
387 *
388 * @param args command-line arguments for the application's <code>main</code>
389 * method; may be <code>null</code>
390 * @param props application-specific properties; may be <code>null</code>
391 */
392 abstract protected void set_parameters(String[] args, Properties props);
393
394 /**
395 * Allows the ORB implementation to be initialized with the given
396 * applet and parameters. This method, used in applets only,
397 * is implemented by subclass ORB implementations and called
398 * by the appropriate <code>init</code> method to pass in its parameters.
399 *
400 * @param app the applet; may be <code>null</code>
401 * @param props applet-specific properties; may be <code>null</code>
402 */
403 abstract protected void set_parameters(Applet app, Properties props);
404
405 /**
406 * Connects the given servant object (a Java object that is
407 * an instance of the server implementation class)
408 * to the ORB. The servant class must
409 * extend the <code>ImplBase</code> class corresponding to the interface that is
410 * supported by the server. The servant must thus be a CORBA object
411 * reference, and inherit from <code>org.omg.CORBA.Object</code>.
412 * Servants created by the user can start receiving remote invocations
413 * after the method <code>connect</code> has been called. A servant may also be
414 * automatically and implicitly connected to the ORB if it is passed as
415 * an IDL parameter in an IDL method invocation on a non-local object,
416 * that is, if the servant object has to be marshalled and sent outside of the
417 * process address space.
418 * <P>
419 * Calling the method <code>connect</code> has no effect
420 * when the servant object is already connected to the ORB.
421 * <P>
422 * Deprecated by the OMG in favor of the Portable Object Adapter APIs.
423 *
424 * @param obj The servant object reference
425 */
426 public void connect(org.omg.CORBA.Object obj) {
427 throw new NO_IMPLEMENT();
428 }
429
430 /**
431 * Destroys the ORB so that its resources can be reclaimed.
432 * Any operation invoked on a destroyed ORB reference will throw the
433 * <code>OBJECT_NOT_EXIST</code> exception.
434 * Once an ORB has been destroyed, another call to <code>init</code>
435 * with the same ORBid will return a reference to a newly constructed ORB.<p>
436 * If <code>destroy</code> is called on an ORB that has not been shut down,
437 * it will start the shut down process and block until the ORB has shut down
438 * before it destroys the ORB.<br>
439 * If an application calls <code>destroy</code> in a thread that is currently servicing
440 * an invocation, the <code>BAD_INV_ORDER</code> system exception will be thrown
441 * with the OMG minor code 3, since blocking would result in a deadlock.<p>
442 * For maximum portability and to avoid resource leaks, an application should
443 * always call <code>shutdown</code> and <code>destroy</code>
444 * on all ORB instances before exiting.
445 *
446 * @throws org.omg.CORBA.BAD_INV_ORDER if the current thread is servicing an invocation
447 */
448 public void destroy( ) {
449 throw new NO_IMPLEMENT();
450 }
451
452 /**
453 * Disconnects the given servant object from the ORB. After this method returns,
454 * the ORB will reject incoming remote requests for the disconnected
455 * servant and will send the exception
456 * <code>org.omg.CORBA.OBJECT_NOT_EXIST</code> back to the
457 * remote client. Thus the object appears to be destroyed from the
458 * point of view of remote clients. Note, however, that local requests issued
459 * using the servant directly do not
460 * pass through the ORB; hence, they will continue to be processed by the
461 * servant.
462 * <P>
463 * Calling the method <code>disconnect</code> has no effect
464 * if the servant is not connected to the ORB.
465 * <P>
466 * Deprecated by the OMG in favor of the Portable Object Adapter APIs.
467 *
468 * @param obj The servant object to be disconnected from the ORB
469 */
470 public void disconnect(org.omg.CORBA.Object obj) {
471 throw new NO_IMPLEMENT();
472 }
473
474 //
475 // ORB method implementations.
476 //
477 // We are trying to accomplish 2 things at once in this class.
478 // It can act as a default ORB implementation front-end,
479 // creating an actual ORB implementation object which is a
480 // subclass of this ORB class and then delegating the method
481 // implementations.
482 //
483 // To accomplish the delegation model, the 'delegate' private instance
484 // variable is set if an instance of this class is created directly.
485 //
486
487 /**
488 * Returns a list of the initially available CORBA object references,
489 * such as "NameService" and "InterfaceRepository".
490 *
491 * @return an array of <code>String</code> objects that represent
492 * the object references for CORBA services
493 * that are initially available with this ORB
494 */
495 abstract public String[] list_initial_services();
496
497 /**
498 * Resolves a specific object reference from the set of available
499 * initial service names.
500 *
501 * @param object_name the name of the initial service as a string
502 * @return the object reference associated with the given name
503 * @exception InvalidName if the given name is not associated with a
504 * known service
505 */
506 abstract public org.omg.CORBA.Object resolve_initial_references(String object_name)
507 throws InvalidName;
508
509 /**
510 * Converts the given CORBA object reference to a string.
511 * Note that the format of this string is predefined by IIOP, allowing
512 * strings generated by a different ORB to be converted back into an object
513 * reference.
514 * <P>
515 * The resulting <code>String</code> object may be stored or communicated
516 * in any way that a <code>String</code> object can be manipulated.
517 *
518 * @param obj the object reference to stringify
519 * @return the string representing the object reference
520 */
521 abstract public String object_to_string(org.omg.CORBA.Object obj);
522
523 /**
524 * Converts a string produced by the method <code>object_to_string</code>
525 * back to a CORBA object reference.
526 *
527 * @param str the string to be converted back to an object reference. It must
528 * be the result of converting an object reference to a string using the
529 * method <code>object_to_string</code>.
530 * @return the object reference
531 */
532 abstract public org.omg.CORBA.Object string_to_object(String str);
533
534 /**
535 * Allocates an <code>NVList</code> with (probably) enough
536 * space for the specified number of <code>NamedValue</code> objects.
537 * Note that the specified size is only a hint to help with
538 * storage allocation and does not imply the maximum size of the list.
539 *
540 * @param count suggested number of <code>NamedValue</code> objects for
541 * which to allocate space
542 * @return the newly-created <code>NVList</code>
543 *
544 * @see NVList
545 */
546 abstract public NVList create_list(int count);
547
548 /**
549 * Creates an <code>NVList</code> initialized with argument
550 * descriptions for the operation described in the given
551 * <code>OperationDef</code> object. This <code>OperationDef</code> object
552 * is obtained from an Interface Repository. The arguments in the
553 * returned <code>NVList</code> object are in the same order as in the
554 * original IDL operation definition, which makes it possible for the list
555 * to be used in dynamic invocation requests.
556 *
557 * @param oper the <code>OperationDef</code> object to use to create the list
558 * @return a newly-created <code>NVList</code> object containing
559 * descriptions of the arguments to the method described in the given
560 * <code>OperationDef</code> object
561 *
562 * @see NVList
563 */
564 public NVList create_operation_list(org.omg.CORBA.Object oper)
565 {
566 // If we came here, it means that the actual ORB implementation
567 // did not have a create_operation_list(...CORBA.Object oper) method,
568 // so lets check if it has a create_operation_list(OperationDef oper)
569 // method.
570 try {
571 // First try to load the OperationDef class
572 String opDefClassName = "org.omg.CORBA.OperationDef";
573 Class opDefClass = null;
574
575 ClassLoader cl = Thread.currentThread().getContextClassLoader();
576 if ( cl == null )
577 cl = ClassLoader.getSystemClassLoader();
578 // if this throws a ClassNotFoundException, it will be caught below.
579 opDefClass = Class.forName(opDefClassName, true, cl);
580
581 // OK, we loaded OperationDef. Now try to get the
582 // create_operation_list(OperationDef oper) method.
583 Class[] argc = { opDefClass };
584 java.lang.reflect.Method meth =
585 this.getClass().getMethod("create_operation_list", argc);
586
587 // OK, the method exists, so invoke it and be happy.
588 java.lang.Object[] argx = { oper };
589 return (org.omg.CORBA.NVList)meth.invoke(this, argx);
590 }
591 catch( java.lang.reflect.InvocationTargetException exs ) {
592 Throwable t = exs.getTargetException();
593 if (t instanceof Error) {
594 throw (Error) t;
595 }
596 else if (t instanceof RuntimeException) {
597 throw (RuntimeException) t;
598 }
599 else {
600 throw new org.omg.CORBA.NO_IMPLEMENT();
601 }
602 }
603 catch( RuntimeException ex ) {
604 throw ex;
605 }
606 catch( Exception exr ) {
607 throw new org.omg.CORBA.NO_IMPLEMENT();
608 }
609 }
610
611
612 /**
613 * Creates a <code>NamedValue</code> object
614 * using the given name, value, and argument mode flags.
615 * <P>
616 * A <code>NamedValue</code> object serves as (1) a parameter or return
617 * value or (2) a context property.
618 * It may be used by itself or
619 * as an element in an <code>NVList</code> object.
620 *
621 * @param s the name of the <code>NamedValue</code> object
622 * @param any the <code>Any</code> value to be inserted into the
623 * <code>NamedValue</code> object
624 * @param flags the argument mode flags for the <code>NamedValue</code>: one of
625 * <code>ARG_IN.value</code>, <code>ARG_OUT.value</code>,
626 * or <code>ARG_INOUT.value</code>.
627 *
628 * @return the newly-created <code>NamedValue</code> object
629 * @see NamedValue
630 */
631 abstract public NamedValue create_named_value(String s, Any any, int flags);
632
633 /**
634 * Creates an empty <code>ExceptionList</code> object.
635 *
636 * @return the newly-created <code>ExceptionList</code> object
637 */
638 abstract public ExceptionList create_exception_list();
639
640 /**
641 * Creates an empty <code>ContextList</code> object.
642 *
643 * @return the newly-created <code>ContextList</code> object
644 * @see ContextList
645 * @see Context
646 */
647 abstract public ContextList create_context_list();
648
649 /**
650 * Gets the default <code>Context</code> object.
651 *
652 * @return the default <code>Context</code> object
653 * @see Context
654 */
655 abstract public Context get_default_context();
656
657 /**
658 * Creates an <code>Environment</code> object.
659 *
660 * @return the newly-created <code>Environment</code> object
661 * @see Environment
662 */
663 abstract public Environment create_environment();
664
665 /**
666 * Creates a new <code>org.omg.CORBA.portable.OutputStream</code> into which
667 * IDL method parameters can be marshalled during method invocation.
668 * @return the newly-created
669 * <code>org.omg.CORBA.portable.OutputStream</code> object
670 */
671 abstract public org.omg.CORBA.portable.OutputStream create_output_stream();
672
673 /**
674 * Sends multiple dynamic (DII) requests asynchronously without expecting
675 * any responses. Note that oneway invocations are not guaranteed to
676 * reach the server.
677 *
678 * @param req an array of request objects
679 */
680 abstract public void send_multiple_requests_oneway(Request[] req);
681
682 /**
683 * Sends multiple dynamic (DII) requests asynchronously.
684 *
685 * @param req an array of <code>Request</code> objects
686 */
687 abstract public void send_multiple_requests_deferred(Request[] req);
688
689 /**
690 * Finds out if any of the deferred (asynchronous) invocations have
691 * a response yet.
692 * @return <code>true</code> if there is a response available;
693 * <code> false</code> otherwise
694 */
695 abstract public boolean poll_next_response();
696
697 /**
698 * Gets the next <code>Request</code> instance for which a response
699 * has been received.
700 *
701 * @return the next <code>Request</code> object ready with a response
702 * @exception WrongTransaction if the method <code>get_next_response</code>
703 * is called from a transaction scope different
704 * from the one from which the original request was sent. See the
705 * OMG Transaction Service specification for details.
706 */
707 abstract public Request get_next_response() throws WrongTransaction;
708
709 /**
710 * Retrieves the <code>TypeCode</code> object that represents
711 * the given primitive IDL type.
712 *
713 * @param tcKind the <code>TCKind</code> instance corresponding to the
714 * desired primitive type
715 * @return the requested <code>TypeCode</code> object
716 */
717 abstract public TypeCode get_primitive_tc(TCKind tcKind);
718
719 /**
720 * Creates a <code>TypeCode</code> object representing an IDL <code>struct</code>.
721 * The <code>TypeCode</code> object is initialized with the given id,
722 * name, and members.
723 *
724 * @param id the repository id for the <code>struct</code>
725 * @param name the name of the <code>struct</code>
726 * @param members an array describing the members of the <code>struct</code>
727 * @return a newly-created <code>TypeCode</code> object describing
728 * an IDL <code>struct</code>
729 */
730 abstract public TypeCode create_struct_tc(String id, String name,
731 StructMember[] members);
732
733 /**
734 * Creates a <code>TypeCode</code> object representing an IDL <code>union</code>.
735 * The <code>TypeCode</code> object is initialized with the given id,
736 * name, discriminator type, and members.
737 *
738 * @param id the repository id of the <code>union</code>
739 * @param name the name of the <code>union</code>
740 * @param discriminator_type the type of the <code>union</code> discriminator
741 * @param members an array describing the members of the <code>union</code>
742 * @return a newly-created <code>TypeCode</code> object describing
743 * an IDL <code>union</code>
744 */
745 abstract public TypeCode create_union_tc(String id, String name,
746 TypeCode discriminator_type,
747 UnionMember[] members);
748
749 /**
750 * Creates a <code>TypeCode</code> object representing an IDL <code>enum</code>.
751 * The <code>TypeCode</code> object is initialized with the given id,
752 * name, and members.
753 *
754 * @param id the repository id for the <code>enum</code>
755 * @param name the name for the <code>enum</code>
756 * @param members an array describing the members of the <code>enum</code>
757 * @return a newly-created <code>TypeCode</code> object describing
758 * an IDL <code>enum</code>
759 */
760 abstract public TypeCode create_enum_tc(String id, String name, String[] members);
761
762 /**
763 * Creates a <code>TypeCode</code> object representing an IDL <code>alias</code>
764 * (<code>typedef</code>).
765 * The <code>TypeCode</code> object is initialized with the given id,
766 * name, and original type.
767 *
768 * @param id the repository id for the alias
769 * @param name the name for the alias
770 * @param original_type
771 * the <code>TypeCode</code> object describing the original type
772 * for which this is an alias
773 * @return a newly-created <code>TypeCode</code> object describing
774 * an IDL <code>alias</code>
775 */
776 abstract public TypeCode create_alias_tc(String id, String name,
777 TypeCode original_type);
778
779 /**
780 * Creates a <code>TypeCode</code> object representing an IDL <code>exception</code>.
781 * The <code>TypeCode</code> object is initialized with the given id,
782 * name, and members.
783 *
784 * @param id the repository id for the <code>exception</code>
785 * @param name the name for the <code>exception</code>
786 * @param members an array describing the members of the <code>exception</code>
787 * @return a newly-created <code>TypeCode</code> object describing
788 * an IDL <code>exception</code>
789 */
790 abstract public TypeCode create_exception_tc(String id, String name,
791 StructMember[] members);
792
793 /**
794 * Creates a <code>TypeCode</code> object representing an IDL <code>interface</code>.
795 * The <code>TypeCode</code> object is initialized with the given id
796 * and name.
797 *
798 * @param id the repository id for the interface
799 * @param name the name for the interface
800 * @return a newly-created <code>TypeCode</code> object describing
801 * an IDL <code>interface</code>
802 */
803
804 abstract public TypeCode create_interface_tc(String id, String name);
805
806 /**
807 * Creates a <code>TypeCode</code> object representing a bounded IDL
808 * <code>string</code>.
809 * The <code>TypeCode</code> object is initialized with the given bound,
810 * which represents the maximum length of the string. Zero indicates
811 * that the string described by this type code is unbounded.
812 *
813 * @param bound the bound for the <code>string</code>; cannot be negative
814 * @return a newly-created <code>TypeCode</code> object describing
815 * a bounded IDL <code>string</code>
816 * @exception BAD_PARAM if bound is a negative value
817 */
818
819 abstract public TypeCode create_string_tc(int bound);
820
821 /**
822 * Creates a <code>TypeCode</code> object representing a bounded IDL
823 * <code>wstring</code> (wide string).
824 * The <code>TypeCode</code> object is initialized with the given bound,
825 * which represents the maximum length of the wide string. Zero indicates
826 * that the string described by this type code is unbounded.
827 *
828 * @param bound the bound for the <code>wstring</code>; cannot be negative
829 * @return a newly-created <code>TypeCode</code> object describing
830 * a bounded IDL <code>wstring</code>
831 * @exception BAD_PARAM if bound is a negative value
832 */
833 abstract public TypeCode create_wstring_tc(int bound);
834
835 /**
836 * Creates a <code>TypeCode</code> object representing an IDL <code>sequence</code>.
837 * The <code>TypeCode</code> object is initialized with the given bound and
838 * element type.
839 *
840 * @param bound the bound for the <code>sequence</code>, 0 if unbounded
841 * @param element_type
842 * the <code>TypeCode</code> object describing the elements
843 * contained in the <code>sequence</code>
844 * @return a newly-created <code>TypeCode</code> object describing
845 * an IDL <code>sequence</code>
846 */
847 abstract public TypeCode create_sequence_tc(int bound, TypeCode element_type);
848
849 /**
850 * Creates a <code>TypeCode</code> object representing a
851 * a recursive IDL <code>sequence</code>.
852 * <P>
853 * For the IDL <code>struct</code> Node in following code fragment,
854 * the offset parameter for creating its sequence would be 1:
855 * <PRE>
856 * Struct Node {
857 * long value;
858 * Sequence <Node> subnodes;
859 * };
860 * </PRE>
861 *
862 * @param bound the bound for the sequence, 0 if unbounded
863 * @param offset the index to the enclosing <code>TypeCode</code> object
864 * that describes the elements of this sequence
865 * @return a newly-created <code>TypeCode</code> object describing
866 * a recursive sequence
867 * @deprecated Use a combination of create_recursive_tc and create_sequence_tc instead
868 * @see #create_recursive_tc(String) create_recursive_tc
869 * @see #create_sequence_tc(int, TypeCode) create_sequence_tc
870 */
871 @Deprecated
872 abstract public TypeCode create_recursive_sequence_tc(int bound, int offset);
873
874 /**
875 * Creates a <code>TypeCode</code> object representing an IDL <code>array</code>.
876 * The <code>TypeCode</code> object is initialized with the given length and
877 * element type.
878 *
879 * @param length the length of the <code>array</code>
880 * @param element_type a <code>TypeCode</code> object describing the type
881 * of element contained in the <code>array</code>
882 * @return a newly-created <code>TypeCode</code> object describing
883 * an IDL <code>array</code>
884 */
885 abstract public TypeCode create_array_tc(int length, TypeCode element_type);
886
887 /**
888 * Create a <code>TypeCode</code> object for an IDL native type.
889 *
890 * @param id the logical id for the native type.
891 * @param name the name of the native type.
892 * @return the requested TypeCode.
893 */
894 public org.omg.CORBA.TypeCode create_native_tc(String id,
895 String name)
896 {
897 throw new org.omg.CORBA.NO_IMPLEMENT();
898 }
899
900 /**
901 * Create a <code>TypeCode</code> object for an IDL abstract interface.
902 *
903 * @param id the logical id for the abstract interface type.
904 * @param name the name of the abstract interface type.
905 * @return the requested TypeCode.
906 */
907 public org.omg.CORBA.TypeCode create_abstract_interface_tc(
908 String id,
909 String name)
910 {
911 throw new org.omg.CORBA.NO_IMPLEMENT();
912 }
913
914
915 /**
916 * Create a <code>TypeCode</code> object for an IDL fixed type.
917 *
918 * @param digits specifies the total number of decimal digits in the number
919 * and must be from 1 to 31 inclusive.
920 * @param scale specifies the position of the decimal point.
921 * @return the requested TypeCode.
922 */
923 public org.omg.CORBA.TypeCode create_fixed_tc(short digits, short scale)
924 {
925 throw new org.omg.CORBA.NO_IMPLEMENT();
926 }
927
928
929 // orbos 98-01-18: Objects By Value -- begin
930
931
932 /**
933 * Create a <code>TypeCode</code> object for an IDL value type.
934 * The concrete_base parameter is the TypeCode for the immediate
935 * concrete valuetype base of the valuetype for which the TypeCode
936 * is being created.
937 * It may be null if the valuetype does not have a concrete base.
938 *
939 * @param id the logical id for the value type.
940 * @param name the name of the value type.
941 * @param type_modifier one of the value type modifier constants:
942 * VM_NONE, VM_CUSTOM, VM_ABSTRACT or VM_TRUNCATABLE
943 * @param concrete_base a <code>TypeCode</code> object
944 * describing the concrete valuetype base
945 * @param members an array containing the members of the value type
946 * @return the requested TypeCode
947 */
948 public org.omg.CORBA.TypeCode create_value_tc(String id,
949 String name,
950 short type_modifier,
951 TypeCode concrete_base,
952 ValueMember[] members)
953 {
954 throw new org.omg.CORBA.NO_IMPLEMENT();
955 }
956
957 /**
958 * Create a recursive <code>TypeCode</code> object which
959 * serves as a placeholder for a concrete TypeCode during the process of creating
960 * TypeCodes which contain recursion. The id parameter specifies the repository id of
961 * the type for which the recursive TypeCode is serving as a placeholder. Once the
962 * recursive TypeCode has been properly embedded in the enclosing TypeCode which
963 * corresponds to the specified repository id, it will function as a normal TypeCode.
964 * Invoking operations on the recursive TypeCode before it has been embedded in the
965 * enclosing TypeCode will result in a <code>BAD_TYPECODE</code> exception.
966 * <P>
967 * For example, the following IDL type declaration contains recursion:
968 * <PRE>
969 * Struct Node {
970 * Sequence<Node> subnodes;
971 * };
972 * </PRE>
973 * <P>
974 * To create a TypeCode for struct Node, you would invoke the TypeCode creation
975 * operations as shown below:
976 * <PRE>
977 * String nodeID = "IDL:Node:1.0";
978 * TypeCode recursiveSeqTC = orb.create_sequence_tc(0, orb.create_recursive_tc(nodeID));
979 * StructMember[] members = { new StructMember("subnodes", recursiveSeqTC, null) };
980 * TypeCode structNodeTC = orb.create_struct_tc(nodeID, "Node", members);
981 * </PRE>
982 * <P>
983 * Also note that the following is an illegal IDL type declaration:
984 * <PRE>
985 * Struct Node {
986 * Node next;
987 * };
988 * </PRE>
989 * <P>
990 * Recursive types can only appear within sequences which can be empty.
991 * That way marshaling problems, when transmitting the struct in an Any, are avoided.
992 * <P>
993 * @param id the logical id of the referenced type
994 * @return the requested TypeCode
995 */
996 public org.omg.CORBA.TypeCode create_recursive_tc(String id) {
997 // implemented in subclass
998 throw new org.omg.CORBA.NO_IMPLEMENT();
999 }
1000
1001 /**
1002 * Creates a <code>TypeCode</code> object for an IDL value box.
1003 *
1004 * @param id the logical id for the value type
1005 * @param name the name of the value type
1006 * @param boxed_type the TypeCode for the type
1007 * @return the requested TypeCode
1008 */
1009 public org.omg.CORBA.TypeCode create_value_box_tc(String id,
1010 String name,
1011 TypeCode boxed_type)
1012 {
1013 // implemented in subclass
1014 throw new org.omg.CORBA.NO_IMPLEMENT();
1015 }
1016
1017 // orbos 98-01-18: Objects By Value -- end
1018
1019 /**
1020 * Creates an IDL <code>Any</code> object initialized to
1021 * contain a <code>Typecode</code> object whose <code>kind</code> field
1022 * is set to <code>TCKind.tc_null</code>.
1023 *
1024 * @return a newly-created <code>Any</code> object
1025 */
1026 abstract public Any create_any();
1027
1028
1029
1030
1031 /**
1032 * Retrieves a <code>Current</code> object.
1033 * The <code>Current</code> interface is used to manage thread-specific
1034 * information for use by services such as transactions and security.
1035 *
1036 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1037 * comments for unimplemented features</a>
1038 *
1039 * @return a newly-created <code>Current</code> object
1040 * @deprecated use <code>resolve_initial_references</code>.
1041 */
1042 @Deprecated
1043 public org.omg.CORBA.Current get_current()
1044 {
1045 throw new org.omg.CORBA.NO_IMPLEMENT();
1046 }
1047
1048 /**
1049 * This operation blocks the current thread until the ORB has
1050 * completed the shutdown process, initiated when some thread calls
1051 * <code>shutdown</code>. It may be used by multiple threads which
1052 * get all notified when the ORB shuts down.
1053 *
1054 */
1055 public void run()
1056 {
1057 throw new org.omg.CORBA.NO_IMPLEMENT();
1058 }
1059
1060 /**
1061 * Instructs the ORB to shut down, which causes all
1062 * object adapters to shut down, in preparation for destruction.<br>
1063 * If the <code>wait_for_completion</code> parameter
1064 * is true, this operation blocks until all ORB processing (including
1065 * processing of currently executing requests, object deactivation,
1066 * and other object adapter operations) has completed.
1067 * If an application does this in a thread that is currently servicing
1068 * an invocation, the <code>BAD_INV_ORDER</code> system exception
1069 * will be thrown with the OMG minor code 3,
1070 * since blocking would result in a deadlock.<br>
1071 * If the <code>wait_for_completion</code> parameter is <code>FALSE</code>,
1072 * then shutdown may not have completed upon return.<p>
1073 * While the ORB is in the process of shutting down, the ORB operates as normal,
1074 * servicing incoming and outgoing requests until all requests have been completed.
1075 * Once an ORB has shutdown, only object reference management operations
1076 * may be invoked on the ORB or any object reference obtained from it.
1077 * An application may also invoke the <code>destroy</code> operation on the ORB itself.
1078 * Invoking any other operation will throw the <code>BAD_INV_ORDER</code>
1079 * system exception with the OMG minor code 4.<p>
1080 * The <code>ORB.run</code> method will return after
1081 * <code>shutdown</code> has been called.
1082 *
1083 * @param wait_for_completion <code>true</code> if the call
1084 * should block until the shutdown is complete;
1085 * <code>false</code> if it should return immediately
1086 * @throws org.omg.CORBA.BAD_INV_ORDER if the current thread is servicing
1087 * an invocation
1088 */
1089 public void shutdown(boolean wait_for_completion)
1090 {
1091 throw new org.omg.CORBA.NO_IMPLEMENT();
1092 }
1093
1094 /**
1095 * Returns <code>true</code> if the ORB needs the main thread to
1096 * perform some work, and <code>false</code> if the ORB does not
1097 * need the main thread.
1098 *
1099 * @return <code>true</code> if there is work pending, meaning that the ORB
1100 * needs the main thread to perform some work; <code>false</code>
1101 * if there is no work pending and thus the ORB does not need the
1102 * main thread
1103 *
1104 */
1105 public boolean work_pending()
1106 {
1107 throw new org.omg.CORBA.NO_IMPLEMENT();
1108 }
1109
1110 /**
1111 * Performs an implementation-dependent unit of work if called
1112 * by the main thread. Otherwise it does nothing.
1113 * The methods <code>work_pending</code> and <code>perform_work</code>
1114 * can be used in
1115 * conjunction to implement a simple polling loop that multiplexes
1116 * the main thread among the ORB and other activities.
1117 *
1118 */
1119 public void perform_work()
1120 {
1121 throw new org.omg.CORBA.NO_IMPLEMENT();
1122 }
1123
1124 /**
1125 * Used to obtain information about CORBA facilities and services
1126 * that are supported by this ORB. The service type for which
1127 * information is being requested is passed in as the in
1128 * parameter <tt>service_type</tt>, the values defined by
1129 * constants in the CORBA module. If service information is
1130 * available for that type, that is returned in the out parameter
1131 * <tt>service_info</tt>, and the operation returns the
1132 * value <tt>true</tt>. If no information for the requested
1133 * services type is available, the operation returns <tt>false</tt>
1134 * (i.e., the service is not supported by this ORB).
1135 * <P>
1136 * @param service_type a <code>short</code> indicating the
1137 * service type for which information is being requested
1138 * @param service_info a <code>ServiceInformationHolder</code> object
1139 * that will hold the <code>ServiceInformation</code> object
1140 * produced by this method
1141 * @return <code>true</code> if service information is available
1142 * for the <tt>service_type</tt>;
1143 * <tt>false</tt> if no information for the
1144 * requested services type is available
1145 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1146 * comments for unimplemented features</a>
1147 */
1148 public boolean get_service_information(short service_type,
1149 ServiceInformationHolder service_info)
1150 {
1151 throw new org.omg.CORBA.NO_IMPLEMENT();
1152 }
1153
1154 // orbos 98-01-18: Objects By Value -- begin
1155
1156 /**
1157 * Creates a new <code>DynAny</code> object from the given
1158 * <code>Any</code> object.
1159 * <P>
1160 * @param value the <code>Any</code> object from which to create a new
1161 * <code>DynAny</code> object
1162 * @return the new <code>DynAny</code> object created from the given
1163 * <code>Any</code> object
1164 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1165 * comments for unimplemented features</a>
1166 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1167 */
1168 @Deprecated
1169 public org.omg.CORBA.DynAny create_dyn_any(org.omg.CORBA.Any value)
1170 {
1171 throw new org.omg.CORBA.NO_IMPLEMENT();
1172 }
1173
1174 /**
1175 * Creates a basic <code>DynAny</code> object from the given
1176 * <code>TypeCode</code> object.
1177 * <P>
1178 * @param type the <code>TypeCode</code> object from which to create a new
1179 * <code>DynAny</code> object
1180 * @return the new <code>DynAny</code> object created from the given
1181 * <code>TypeCode</code> object
1182 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1183 * <code>TypeCode</code> object is not consistent with the operation.
1184 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1185 * comments for unimplemented features</a>
1186 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1187 */
1188 @Deprecated
1189 public org.omg.CORBA.DynAny create_basic_dyn_any(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1190 {
1191 throw new org.omg.CORBA.NO_IMPLEMENT();
1192 }
1193
1194 /**
1195 * Creates a new <code>DynStruct</code> object from the given
1196 * <code>TypeCode</code> object.
1197 * <P>
1198 * @param type the <code>TypeCode</code> object from which to create a new
1199 * <code>DynStruct</code> object
1200 * @return the new <code>DynStruct</code> object created from the given
1201 * <code>TypeCode</code> object
1202 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1203 * <code>TypeCode</code> object is not consistent with the operation.
1204 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1205 * comments for unimplemented features</a>
1206 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1207 */
1208 @Deprecated
1209 public org.omg.CORBA.DynStruct create_dyn_struct(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1210 {
1211 throw new org.omg.CORBA.NO_IMPLEMENT();
1212 }
1213
1214 /**
1215 * Creates a new <code>DynSequence</code> object from the given
1216 * <code>TypeCode</code> object.
1217 * <P>
1218 * @param type the <code>TypeCode</code> object from which to create a new
1219 * <code>DynSequence</code> object
1220 * @return the new <code>DynSequence</code> object created from the given
1221 * <code>TypeCode</code> object
1222 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1223 * <code>TypeCode</code> object is not consistent with the operation.
1224 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1225 * comments for unimplemented features</a>
1226 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1227 */
1228 @Deprecated
1229 public org.omg.CORBA.DynSequence create_dyn_sequence(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1230 {
1231 throw new org.omg.CORBA.NO_IMPLEMENT();
1232 }
1233
1234
1235 /**
1236 * Creates a new <code>DynArray</code> object from the given
1237 * <code>TypeCode</code> object.
1238 * <P>
1239 * @param type the <code>TypeCode</code> object from which to create a new
1240 * <code>DynArray</code> object
1241 * @return the new <code>DynArray</code> object created from the given
1242 * <code>TypeCode</code> object
1243 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1244 * <code>TypeCode</code> object is not consistent with the operation.
1245 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1246 * comments for unimplemented features</a>
1247 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1248 */
1249 @Deprecated
1250 public org.omg.CORBA.DynArray create_dyn_array(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1251 {
1252 throw new org.omg.CORBA.NO_IMPLEMENT();
1253 }
1254
1255 /**
1256 * Creates a new <code>DynUnion</code> object from the given
1257 * <code>TypeCode</code> object.
1258 * <P>
1259 * @param type the <code>TypeCode</code> object from which to create a new
1260 * <code>DynUnion</code> object
1261 * @return the new <code>DynUnion</code> object created from the given
1262 * <code>TypeCode</code> object
1263 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1264 * <code>TypeCode</code> object is not consistent with the operation.
1265 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1266 * comments for unimplemented features</a>
1267 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1268 */
1269 @Deprecated
1270 public org.omg.CORBA.DynUnion create_dyn_union(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1271 {
1272 throw new org.omg.CORBA.NO_IMPLEMENT();
1273 }
1274
1275 /**
1276 * Creates a new <code>DynEnum</code> object from the given
1277 * <code>TypeCode</code> object.
1278 * <P>
1279 * @param type the <code>TypeCode</code> object from which to create a new
1280 * <code>DynEnum</code> object
1281 * @return the new <code>DynEnum</code> object created from the given
1282 * <code>TypeCode</code> object
1283 * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
1284 * <code>TypeCode</code> object is not consistent with the operation.
1285 * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
1286 * comments for unimplemented features</a>
1287 * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
1288 */
1289 @Deprecated
1290 public org.omg.CORBA.DynEnum create_dyn_enum(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
1291 {
1292 throw new org.omg.CORBA.NO_IMPLEMENT();
1293 }
1294
1295 /**
1296 * Can be invoked to create new instances of policy objects
1297 * of a specific type with specified initial state. If
1298 * <tt>create_policy</tt> fails to instantiate a new Policy
1299 * object due to its inability to interpret the requested type
1300 * and content of the policy, it raises the <tt>PolicyError</tt>
1301 * exception with the appropriate reason.
1302 * @param type the <tt>PolicyType</tt> of the policy object to
1303 * be created
1304 * @param val the value that will be used to set the initial
1305 * state of the <tt>Policy</tt> object that is created
1306 * @return Reference to a newly created <tt>Policy</tt> object
1307 * of type specified by the <tt>type</tt> parameter and
1308 * initialized to a state specified by the <tt>val</tt>
1309 * parameter
1310 * @throws <tt>org.omg.CORBA.PolicyError</tt> when the requested
1311 * policy is not supported or a requested initial state
1312 * for the policy is not supported.
1313 */
1314 public org.omg.CORBA.Policy create_policy(int type, org.omg.CORBA.Any val)
1315 throws org.omg.CORBA.PolicyError
1316 {
1317 // Currently not implemented until PIORB.
1318 throw new org.omg.CORBA.NO_IMPLEMENT();
1319 }
1320 }