jdk8-mips64-public/corba: src/share/classes/org/omg/CORBA/ORB.java@009fc3f785a9 (annotated)

src/share/classes/org/omg/CORBA/ORB.java@009fc3f785a9 (annotated)

src/share/classes/org/omg/CORBA/ORB.java

Sat, 07 Jun 2014 10:09:30 +0100

author: coffeys
date: Sat, 07 Jun 2014 10:09:30 +0100
changeset 660: 009fc3f785a9
parent 615: 8b0b643ffd42
child 748: 6845b95cba6b
permissions: -rw-r--r--

8042789: org.omg.CORBA.ORBSingletonClass loading no longer uses context class loader
Reviewed-by: alanb, lancea

 /*
  * Copyright (c) 1995, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package org.omg.CORBA;
 import org.omg.CORBA.portable.*;
 import org.omg.CORBA.ORBPackage.InvalidName;
 import java.util.Properties;
 import java.applet.Applet;
 import java.io.File;
 import java.io.FileInputStream;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
 import sun.reflect.misc.ReflectUtil;
 /**
  * A class providing APIs for the CORBA Object Request Broker
  * features.  The <code>ORB</code> class also provides
  * "pluggable ORB implementation" APIs that allow another vendor's ORB
  * implementation to be used.
  * <P>
  * An ORB makes it possible for CORBA objects to communicate
  * with each other by connecting objects making requests (clients) with
  * objects servicing requests (servers).
  * <P>
  *
  * The <code>ORB</code> class, which
  * encapsulates generic CORBA functionality, does the following:
  * (Note that items 5 and 6, which include most of the methods in
  * the class <code>ORB</code>, are typically used with the <code>Dynamic Invocation
  * Interface</code> (DII) and the <code>Dynamic Skeleton Interface</code>
  * (DSI).
  * These interfaces may be used by a developer directly, but
  * most commonly they are used by the ORB internally and are
  * not seen by the general programmer.)
  * <OL>
  * <li> initializes the ORB implementation by supplying values for
  *      predefined properties and environmental parameters
  * <li> obtains initial object references to services such as
  * the NameService using the method <code>resolve_initial_references</code>
  * <li> converts object references to strings and back
  * <li> connects the ORB to a servant (an instance of a CORBA object
  * implementation) and disconnects the ORB from a servant
  * <li> creates objects such as
  *   <ul>
  *   <li><code>TypeCode</code>
  *   <li><code>Any</code>
  *   <li><code>NamedValue</code>
  *   <li><code>Context</code>
  *   <li><code>Environment</code>
  *   <li>lists (such as <code>NVList</code>) containing these objects
  *   </ul>
  * <li> sends multiple messages in the DII
  * </OL>
  *
  * <P>
  * The <code>ORB</code> class can be used to obtain references to objects
  * implemented anywhere on the network.
  * <P>
  * An application or applet gains access to the CORBA environment
  * by initializing itself into an <code>ORB</code> using one of
  * three <code>init</code> methods.  Two of the three methods use the properties
  * (associations of a name with a value) shown in the
  * table below.<BR>
  * <TABLE BORDER=1 SUMMARY="Standard Java CORBA Properties">
  * <TR><TH>Property Name</TH>   <TH>Property Value</TH></TR>
  * <CAPTION>Standard Java CORBA Properties:</CAPTION>
  *     <TR><TD>org.omg.CORBA.ORBClass</TD>
  *     <TD>class name of an ORB implementation</TD></TR>
  *     <TR><TD>org.omg.CORBA.ORBSingletonClass</TD>
  *     <TD>class name of the ORB returned by <code>init()</code></TD></TR>
  * </TABLE>
  * <P>
  * These properties allow a different vendor's <code>ORB</code>
  * implementation to be "plugged in."
  * <P>
  * When an ORB instance is being created, the class name of the ORB
  * implementation is located using
  * the following standard search order:<P>
  *
  * <OL>
  *     <LI>check in Applet parameter or application string array, if any
  *
  *     <LI>check in properties parameter, if any
  *
  *     <LI>check in the System properties
  *
  *     <LI>check in the orb.properties file located in the user.home
  *         directory (if any)
  *
  *     <LI>check in the orb.properties file located in the java.home/lib
  *         directory (if any)
  *
  *     <LI>fall back on a hardcoded default behavior (use the Java&nbsp;IDL
  *         implementation)
  * </OL>
  * <P>
  * Note that Java&nbsp;IDL provides a default implementation for the
  * fully-functional ORB and for the Singleton ORB.  When the method
  * <code>init</code> is given no parameters, the default Singleton
  * ORB is returned.  When the method <code>init</code> is given parameters
  * but no ORB class is specified, the Java&nbsp;IDL ORB implementation
  * is returned.
  * <P>
  * The following code fragment creates an <code>ORB</code> object
  * initialized with the default ORB Singleton.
  * This ORB has a
  * restricted implementation to prevent malicious applets from doing
  * anything beyond creating typecodes.
  * It is called a singleton
  * because there is only one instance for an entire virtual machine.
  * <PRE>
  *    ORB orb = ORB.init();
  * </PRE>
  * <P>
  * The following code fragment creates an <code>ORB</code> object
  * for an application.  The parameter <code>args</code>
  * represents the arguments supplied to the application's <code>main</code>
  * method.  Since the property specifies the ORB class to be
  * "SomeORBImplementation", the new ORB will be initialized with
  * that ORB implementation.  If p had been null,
  * and the arguments had not specified an ORB class,
  * the new ORB would have been
  * initialized with the default Java&nbsp;IDL implementation.
  * <PRE>
  *    Properties p = new Properties();
  *    p.put("org.omg.CORBA.ORBClass", "SomeORBImplementation");
  *    ORB orb = ORB.init(args, p);
  * </PRE>
  * <P>
  * The following code fragment creates an <code>ORB</code> object
  * for the applet supplied as the first parameter.  If the given
  * applet does not specify an ORB class, the new ORB will be
  * initialized with the default Java&nbsp;IDL implementation.
  * <PRE>
  *    ORB orb = ORB.init(myApplet, null);
  * </PRE>
  * <P>
  * An application or applet can be initialized in one or more ORBs.
  * ORB initialization is a bootstrap call into the CORBA world.
  * @since   JDK1.2
  */
 abstract public class ORB {
     //
     // This is the ORB implementation used when nothing else is specified.
     // Whoever provides this class customizes this string to
     // point at their ORB implementation.
     //
     private static final String ORBClassKey = "org.omg.CORBA.ORBClass";
     private static final String ORBSingletonClassKey = "org.omg.CORBA.ORBSingletonClass";
     //
     // The global instance of the singleton ORB implementation which
     // acts as a factory for typecodes for generated Helper classes.
     // TypeCodes should be immutable since they may be shared across
     // different security contexts (applets). There should be no way to
     // use a TypeCode as a storage depot for illicitly passing
     // information or Java objects between different security contexts.
     //
     static private ORB singleton;
     // Get System property
     private static String getSystemProperty(final String name) {
         // This will not throw a SecurityException because this
         // class was loaded from rt.jar using the bootstrap classloader.
         String propValue = (String) AccessController.doPrivileged(
             new PrivilegedAction() {
                 public java.lang.Object run() {
                     return System.getProperty(name);
                 }
             }
         );
         return propValue;
     }
     // Get property from orb.properties in either <user.home> or <java-home>/lib
     // directories.
     private static String getPropertyFromFile(final String name) {
         // This will not throw a SecurityException because this
         // class was loaded from rt.jar using the bootstrap classloader.
         String propValue = (String) AccessController.doPrivileged(
             new PrivilegedAction() {
                 private Properties getFileProperties( String fileName ) {
                     try {
                         File propFile = new File( fileName ) ;
                         if (!propFile.exists())
                             return null ;
                         Properties props = new Properties() ;
                         FileInputStream fis = new FileInputStream(propFile);
                         try {
                             props.load( fis );
                         } finally {
                             fis.close() ;
                         }
                         return props ;
                     } catch (Exception exc) {
                         return null ;
                     }
                 }
                 public java.lang.Object run() {
                     String userHome = System.getProperty("user.home");
                     String fileName = userHome + File.separator +
                         "orb.properties" ;
                     Properties props = getFileProperties( fileName ) ;
                     if (props != null) {
                         String value = props.getProperty( name ) ;
                         if (value != null)
                             return value ;
                     }
                     String javaHome = System.getProperty("java.home");
                     fileName = javaHome + File.separator
                         + "lib" + File.separator + "orb.properties";
                     props = getFileProperties( fileName ) ;
                     if (props == null)
                         return null ;
                     else
                         return props.getProperty( name ) ;
                 }
             }
         );
         return propValue;
     }
     /**
      * Returns the <code>ORB</code> singleton object. This method always returns the
      * same ORB instance, which is an instance of the class described by the
      * <code>org.omg.CORBA.ORBSingletonClass</code> system property.
      * <P>
      * This no-argument version of the method <code>init</code> is used primarily
      * as a factory for <code>TypeCode</code> objects, which are used by
      * <code>Helper</code> classes to implement the method <code>type</code>.
      * It is also used to create <code>Any</code> objects that are used to
      * describe <code>union</code> labels (as part of creating a <code>
      * TypeCode</code> object for a <code>union</code>).
      * <P>
      * This method is not intended to be used by applets, and in the event
      * that it is called in an applet environment, the ORB it returns
      * is restricted so that it can be used only as a factory for
      * <code>TypeCode</code> objects.  Any <code>TypeCode</code> objects
      * it produces can be safely shared among untrusted applets.
      * <P>
      * If an ORB is created using this method from an applet,
      * a system exception will be thrown if
      * methods other than those for
      * creating <code>TypeCode</code> objects are invoked.
      *
      * @return the singleton ORB
      */
     public static synchronized ORB init() {
         if (singleton == null) {
             String className = getSystemProperty(ORBSingletonClassKey);
             if (className == null)
                 className = getPropertyFromFile(ORBSingletonClassKey);
             if ((className == null) ||
                     (className.equals("com.sun.corba.se.impl.orb.ORBSingleton"))) {
                 singleton = new com.sun.corba.se.impl.orb.ORBSingleton();
             } else {
                 singleton = create_impl(className);
             }
         }
         return singleton;
     }
     private static ORB create_impl(String className) {
         ClassLoader cl = Thread.currentThread().getContextClassLoader();
         if (cl == null)
             cl = ClassLoader.getSystemClassLoader();
         try {
             ReflectUtil.checkPackageAccess(className);
             Class<org.omg.CORBA.ORB> orbBaseClass = org.omg.CORBA.ORB.class;
             Class<?> orbClass = Class.forName(className, true, cl).asSubclass(orbBaseClass);
             return (ORB)orbClass.newInstance();
         } catch (Throwable ex) {
             SystemException systemException = new INITIALIZE(
                "can't instantiate default ORB implementation " + className);
             systemException.initCause(ex);
             throw systemException;
         }
     }
     /**
      * Creates a new <code>ORB</code> instance for a standalone
      * application.  This method may be called from applications
      * only and returns a new fully functional <code>ORB</code> object
      * each time it is called.
      * @param args command-line arguments for the application's <code>main</code>
      *             method; may be <code>null</code>
      * @param props application-specific properties; may be <code>null</code>
      * @return the newly-created ORB instance
      */
     public static ORB init(String[] args, Properties props) {
         //
         // Note that there is no standard command-line argument for
         // specifying the default ORB implementation. For an
         // application you can choose an implementation either by
         // setting the CLASSPATH to pick a different org.omg.CORBA
         // and it's baked-in ORB implementation default or by
         // setting an entry in the properties object or in the
         // system properties.
         //
         String className = null;
         ORB orb;
         if (props != null)
             className = props.getProperty(ORBClassKey);
         if (className == null)
             className = getSystemProperty(ORBClassKey);
         if (className == null)
             className = getPropertyFromFile(ORBClassKey);
         if ((className == null) ||
                     (className.equals("com.sun.corba.se.impl.orb.ORBImpl"))) {
             orb = new com.sun.corba.se.impl.orb.ORBImpl();
         } else {
             orb = create_impl(className);
         }
         orb.set_parameters(args, props);
         return orb;
     }
     /**
      * Creates a new <code>ORB</code> instance for an applet.  This
      * method may be called from applets only and returns a new
      * fully-functional <code>ORB</code> object each time it is called.
      * @param app the applet; may be <code>null</code>
      * @param props applet-specific properties; may be <code>null</code>
      * @return the newly-created ORB instance
      */
     public static ORB init(Applet app, Properties props) {
         String className;
         ORB orb;
         className = app.getParameter(ORBClassKey);
         if (className == null && props != null)
             className = props.getProperty(ORBClassKey);
         if (className == null)
             className = getSystemProperty(ORBClassKey);
         if (className == null)
             className = getPropertyFromFile(ORBClassKey);
         if ((className == null) ||
                     (className.equals("com.sun.corba.se.impl.orb.ORBImpl"))) {
             orb = new com.sun.corba.se.impl.orb.ORBImpl();
         } else {
             orb = create_impl(className);
         }
         orb.set_parameters(app, props);
         return orb;
     }
     /**
      * Allows the ORB implementation to be initialized with the given
      * parameters and properties. This method, used in applications only,
      * is implemented by subclass ORB implementations and called
      * by the appropriate <code>init</code> method to pass in its parameters.
      *
      * @param args command-line arguments for the application's <code>main</code>
      *             method; may be <code>null</code>
      * @param props application-specific properties; may be <code>null</code>
      */
     abstract protected void set_parameters(String[] args, Properties props);
     /**
      * Allows the ORB implementation to be initialized with the given
      * applet and parameters. This method, used in applets only,
      * is implemented by subclass ORB implementations and called
      * by the appropriate <code>init</code> method to pass in its parameters.
      *
      * @param app the applet; may be <code>null</code>
      * @param props applet-specific properties; may be <code>null</code>
      */
     abstract protected void set_parameters(Applet app, Properties props);
     /**
      * Connects the given servant object (a Java object that is
      * an instance of the server implementation class)
      * to the ORB. The servant class must
      * extend the <code>ImplBase</code> class corresponding to the interface that is
      * supported by the server. The servant must thus be a CORBA object
      * reference, and inherit from <code>org.omg.CORBA.Object</code>.
      * Servants created by the user can start receiving remote invocations
      * after the method <code>connect</code> has been called. A servant may also be
      * automatically and implicitly connected to the ORB if it is passed as
      * an IDL parameter in an IDL method invocation on a non-local object,
      * that is, if the servant object has to be marshalled and sent outside of the
      * process address space.
      * <P>
      * Calling the method <code>connect</code> has no effect
      * when the servant object is already connected to the ORB.
      * <P>
      * Deprecated by the OMG in favor of the Portable Object Adapter APIs.
      *
      * @param obj The servant object reference
      */
     public void connect(org.omg.CORBA.Object obj) {
         throw new NO_IMPLEMENT();
     }
     /**
      * Destroys the ORB so that its resources can be reclaimed.
      * Any operation invoked on a destroyed ORB reference will throw the
      * <code>OBJECT_NOT_EXIST</code> exception.
      * Once an ORB has been destroyed, another call to <code>init</code>
      * with the same ORBid will return a reference to a newly constructed ORB.<p>
      * If <code>destroy</code> is called on an ORB that has not been shut down,
      * it will start the shut down process and block until the ORB has shut down
      * before it destroys the ORB.<br>
      * If an application calls <code>destroy</code> in a thread that is currently servicing
      * an invocation, the <code>BAD_INV_ORDER</code> system exception will be thrown
      * with the OMG minor code 3, since blocking would result in a deadlock.<p>
      * For maximum portability and to avoid resource leaks, an application should
      * always call <code>shutdown</code> and <code>destroy</code>
      * on all ORB instances before exiting.
      *
      * @throws org.omg.CORBA.BAD_INV_ORDER if the current thread is servicing an invocation
      */
     public void destroy( ) {
         throw new NO_IMPLEMENT();
     }
     /**
      * Disconnects the given servant object from the ORB. After this method returns,
      * the ORB will reject incoming remote requests for the disconnected
      * servant and will send the exception
      * <code>org.omg.CORBA.OBJECT_NOT_EXIST</code> back to the
      * remote client. Thus the object appears to be destroyed from the
      * point of view of remote clients. Note, however, that local requests issued
      * using the servant  directly do not
      * pass through the ORB; hence, they will continue to be processed by the
      * servant.
      * <P>
      * Calling the method <code>disconnect</code> has no effect
      * if the servant is not connected to the ORB.
      * <P>
      * Deprecated by the OMG in favor of the Portable Object Adapter APIs.
      *
      * @param obj The servant object to be disconnected from the ORB
      */
     public void disconnect(org.omg.CORBA.Object obj) {
         throw new NO_IMPLEMENT();
     }
     //
     // ORB method implementations.
     //
     // We are trying to accomplish 2 things at once in this class.
     // It can act as a default ORB implementation front-end,
     // creating an actual ORB implementation object which is a
     // subclass of this ORB class and then delegating the method
     // implementations.
     //
     // To accomplish the delegation model, the 'delegate' private instance
     // variable is set if an instance of this class is created directly.
     //
     /**
      * Returns a list of the initially available CORBA object references,
      * such as "NameService" and "InterfaceRepository".
      *
      * @return an array of <code>String</code> objects that represent
      *         the object references for CORBA services
      *         that are initially available with this ORB
      */
     abstract public String[] list_initial_services();
     /**
      * Resolves a specific object reference from the set of available
      * initial service names.
      *
      * @param object_name the name of the initial service as a string
      * @return  the object reference associated with the given name
      * @exception InvalidName if the given name is not associated with a
      *                         known service
      */
     abstract public org.omg.CORBA.Object resolve_initial_references(String object_name)
         throws InvalidName;
     /**
      * Converts the given CORBA object reference to a string.
      * Note that the format of this string is predefined by IIOP, allowing
      * strings generated by a different ORB to be converted back into an object
      * reference.
      * <P>
      * The resulting <code>String</code> object may be stored or communicated
      * in any way that a <code>String</code> object can be manipulated.
      *
      * @param obj the object reference to stringify
      * @return the string representing the object reference
      */
     abstract public String object_to_string(org.omg.CORBA.Object obj);
     /**
      * Converts a string produced by the method <code>object_to_string</code>
      * back to a CORBA object reference.
      *
      * @param str the string to be converted back to an object reference.  It must
      * be the result of converting an object reference to a string using the
      * method <code>object_to_string</code>.
      * @return the object reference
      */
     abstract public org.omg.CORBA.Object string_to_object(String str);
     /**
      * Allocates an <code>NVList</code> with (probably) enough
      * space for the specified number of <code>NamedValue</code> objects.
      * Note that the specified size is only a hint to help with
      * storage allocation and does not imply the maximum size of the list.
      *
      * @param count  suggested number of <code>NamedValue</code> objects for
      *               which to allocate space
      * @return the newly-created <code>NVList</code>
      *
      * @see NVList
      */
     abstract public NVList create_list(int count);
     /**
      * Creates an <code>NVList</code> initialized with argument
      * descriptions for the operation described in the given
      * <code>OperationDef</code> object.  This <code>OperationDef</code> object
      * is obtained from an Interface Repository. The arguments in the
      * returned <code>NVList</code> object are in the same order as in the
      * original IDL operation definition, which makes it possible for the list
      * to be used in dynamic invocation requests.
      *
      * @param oper      the <code>OperationDef</code> object to use to create the list
      * @return          a newly-created <code>NVList</code> object containing
      * descriptions of the arguments to the method described in the given
      * <code>OperationDef</code> object
      *
      * @see NVList
      */
     public NVList create_operation_list(org.omg.CORBA.Object oper)
     {
         // If we came here, it means that the actual ORB implementation
         // did not have a create_operation_list(...CORBA.Object oper) method,
         // so lets check if it has a create_operation_list(OperationDef oper)
         // method.
         try {
             // First try to load the OperationDef class
             String opDefClassName = "org.omg.CORBA.OperationDef";
             Class<?> opDefClass = null;
             ClassLoader cl = Thread.currentThread().getContextClassLoader();
             if ( cl == null )
                 cl = ClassLoader.getSystemClassLoader();
             // if this throws a ClassNotFoundException, it will be caught below.
             opDefClass = Class.forName(opDefClassName, true, cl);
             // OK, we loaded OperationDef. Now try to get the
             // create_operation_list(OperationDef oper) method.
             Class<?>[] argc = { opDefClass };
             java.lang.reflect.Method meth =
                 this.getClass().getMethod("create_operation_list", argc);
             // OK, the method exists, so invoke it and be happy.
             java.lang.Object[] argx = { oper };
             return (org.omg.CORBA.NVList)meth.invoke(this, argx);
         }
         catch( java.lang.reflect.InvocationTargetException exs ) {
             Throwable t = exs.getTargetException();
             if (t instanceof Error) {
                 throw (Error) t;
             }
             else if (t instanceof RuntimeException) {
                 throw (RuntimeException) t;
             }
             else {
                 throw new org.omg.CORBA.NO_IMPLEMENT();
             }
         }
         catch( RuntimeException ex ) {
             throw ex;
         }
         catch( Exception exr ) {
             throw new org.omg.CORBA.NO_IMPLEMENT();
         }
     }
     /**
      * Creates a <code>NamedValue</code> object
      * using the given name, value, and argument mode flags.
      * <P>
      * A <code>NamedValue</code> object serves as (1) a parameter or return
      * value or (2) a context property.
      * It may be used by itself or
      * as an element in an <code>NVList</code> object.
      *
      * @param s  the name of the <code>NamedValue</code> object
      * @param any  the <code>Any</code> value to be inserted into the
      *             <code>NamedValue</code> object
      * @param flags  the argument mode flags for the <code>NamedValue</code>: one of
      * <code>ARG_IN.value</code>, <code>ARG_OUT.value</code>,
      * or <code>ARG_INOUT.value</code>.
      *
      * @return  the newly-created <code>NamedValue</code> object
      * @see NamedValue
      */
     abstract public NamedValue create_named_value(String s, Any any, int flags);
     /**
      * Creates an empty <code>ExceptionList</code> object.
      *
      * @return  the newly-created <code>ExceptionList</code> object
      */
     abstract public ExceptionList create_exception_list();
     /**
      * Creates an empty <code>ContextList</code> object.
      *
      * @return  the newly-created <code>ContextList</code> object
      * @see ContextList
      * @see Context
      */
     abstract public ContextList create_context_list();
     /**
      * Gets the default <code>Context</code> object.
      *
      * @return the default <code>Context</code> object
      * @see Context
      */
     abstract public Context get_default_context();
     /**
      * Creates an <code>Environment</code> object.
      *
      * @return  the newly-created <code>Environment</code> object
      * @see Environment
      */
     abstract public Environment create_environment();
     /**
      * Creates a new <code>org.omg.CORBA.portable.OutputStream</code> into which
      * IDL method parameters can be marshalled during method invocation.
      * @return          the newly-created
      *              <code>org.omg.CORBA.portable.OutputStream</code> object
      */
     abstract public org.omg.CORBA.portable.OutputStream create_output_stream();
     /**
      * Sends multiple dynamic (DII) requests asynchronously without expecting
      * any responses. Note that oneway invocations are not guaranteed to
      * reach the server.
      *
      * @param req               an array of request objects
      */
     abstract public void send_multiple_requests_oneway(Request[] req);
     /**
      * Sends multiple dynamic (DII) requests asynchronously.
      *
      * @param req               an array of <code>Request</code> objects
      */
     abstract public void send_multiple_requests_deferred(Request[] req);
     /**
      * Finds out if any of the deferred (asynchronous) invocations have
      * a response yet.
      * @return <code>true</code> if there is a response available;
      *         <code> false</code> otherwise
      */
     abstract public boolean poll_next_response();
     /**
      * Gets the next <code>Request</code> instance for which a response
      * has been received.
      *
      * @return          the next <code>Request</code> object ready with a response
      * @exception WrongTransaction if the method <code>get_next_response</code>
      * is called from a transaction scope different
      * from the one from which the original request was sent. See the
      * OMG Transaction Service specification for details.
      */
     abstract public Request get_next_response() throws WrongTransaction;
     /**
      * Retrieves the <code>TypeCode</code> object that represents
      * the given primitive IDL type.
      *
      * @param tcKind    the <code>TCKind</code> instance corresponding to the
      *                  desired primitive type
      * @return          the requested <code>TypeCode</code> object
      */
     abstract public TypeCode get_primitive_tc(TCKind tcKind);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>struct</code>.
      * The <code>TypeCode</code> object is initialized with the given id,
      * name, and members.
      *
      * @param id        the repository id for the <code>struct</code>
      * @param name      the name of the <code>struct</code>
      * @param members   an array describing the members of the <code>struct</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>struct</code>
      */
     abstract public TypeCode create_struct_tc(String id, String name,
                                               StructMember[] members);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>union</code>.
      * The <code>TypeCode</code> object is initialized with the given id,
      * name, discriminator type, and members.
      *
      * @param id        the repository id of the <code>union</code>
      * @param name      the name of the <code>union</code>
      * @param discriminator_type        the type of the <code>union</code> discriminator
      * @param members   an array describing the members of the <code>union</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>union</code>
      */
     abstract public TypeCode create_union_tc(String id, String name,
                                              TypeCode discriminator_type,
                                              UnionMember[] members);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>enum</code>.
      * The <code>TypeCode</code> object is initialized with the given id,
      * name, and members.
      *
      * @param id        the repository id for the <code>enum</code>
      * @param name      the name for the <code>enum</code>
      * @param members   an array describing the members of the <code>enum</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>enum</code>
      */
     abstract public TypeCode create_enum_tc(String id, String name, String[] members);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>alias</code>
      * (<code>typedef</code>).
      * The <code>TypeCode</code> object is initialized with the given id,
      * name, and original type.
      *
      * @param id        the repository id for the alias
      * @param name      the name for the alias
      * @param original_type
      *                  the <code>TypeCode</code> object describing the original type
      *          for which this is an alias
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>alias</code>
      */
     abstract public TypeCode create_alias_tc(String id, String name,
                                              TypeCode original_type);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>exception</code>.
      * The <code>TypeCode</code> object is initialized with the given id,
      * name, and members.
      *
      * @param id        the repository id for the <code>exception</code>
      * @param name      the name for the <code>exception</code>
      * @param members   an array describing the members of the <code>exception</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>exception</code>
      */
     abstract public TypeCode create_exception_tc(String id, String name,
                                                  StructMember[] members);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>interface</code>.
      * The <code>TypeCode</code> object is initialized with the given id
      * and name.
      *
      * @param id        the repository id for the interface
      * @param name      the name for the interface
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>interface</code>
      */
     abstract public TypeCode create_interface_tc(String id, String name);
     /**
      * Creates a <code>TypeCode</code> object representing a bounded IDL
      * <code>string</code>.
      * The <code>TypeCode</code> object is initialized with the given bound,
      * which represents the maximum length of the string. Zero indicates
      * that the string described by this type code is unbounded.
      *
      * @param bound     the bound for the <code>string</code>; cannot be negative
      * @return          a newly-created <code>TypeCode</code> object describing
      *              a bounded IDL <code>string</code>
      * @exception BAD_PARAM if bound is a negative value
      */
     abstract public TypeCode create_string_tc(int bound);
     /**
      * Creates a <code>TypeCode</code> object representing a bounded IDL
      * <code>wstring</code> (wide string).
      * The <code>TypeCode</code> object is initialized with the given bound,
      * which represents the maximum length of the wide string. Zero indicates
      * that the string described by this type code is unbounded.
      *
      * @param bound     the bound for the <code>wstring</code>; cannot be negative
      * @return          a newly-created <code>TypeCode</code> object describing
      *              a bounded IDL <code>wstring</code>
      * @exception BAD_PARAM if bound is a negative value
      */
     abstract public TypeCode create_wstring_tc(int bound);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>sequence</code>.
      * The <code>TypeCode</code> object is initialized with the given bound and
      * element type.
      *
      * @param bound     the bound for the <code>sequence</code>, 0 if unbounded
      * @param element_type
      *                  the <code>TypeCode</code> object describing the elements
      *          contained in the <code>sequence</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>sequence</code>
      */
     abstract public TypeCode create_sequence_tc(int bound, TypeCode element_type);
     /**
      * Creates a <code>TypeCode</code> object representing a
      * a recursive IDL <code>sequence</code>.
      * <P>
      * For the IDL <code>struct</code> Node in following code fragment,
      * the offset parameter for creating its sequence would be 1:
      * <PRE>
      *    Struct Node {
      *        long value;
      *        Sequence &lt;Node&gt; subnodes;
      *    };
      * </PRE>
      *
      * @param bound     the bound for the sequence, 0 if unbounded
      * @param offset    the index to the enclosing <code>TypeCode</code> object
      *                  that describes the elements of this sequence
      * @return          a newly-created <code>TypeCode</code> object describing
      *                   a recursive sequence
      * @deprecated Use a combination of create_recursive_tc and create_sequence_tc instead
      * @see #create_recursive_tc(String) create_recursive_tc
      * @see #create_sequence_tc(int, TypeCode) create_sequence_tc
      */
     @Deprecated
     abstract public TypeCode create_recursive_sequence_tc(int bound, int offset);
     /**
      * Creates a <code>TypeCode</code> object representing an IDL <code>array</code>.
      * The <code>TypeCode</code> object is initialized with the given length and
      * element type.
      *
      * @param length    the length of the <code>array</code>
      * @param element_type  a <code>TypeCode</code> object describing the type
      *                      of element contained in the <code>array</code>
      * @return          a newly-created <code>TypeCode</code> object describing
      *              an IDL <code>array</code>
      */
     abstract public TypeCode create_array_tc(int length, TypeCode element_type);
     /**
      * Create a <code>TypeCode</code> object for an IDL native type.
      *
      * @param id        the logical id for the native type.
      * @param name      the name of the native type.
      * @return          the requested TypeCode.
      */
     public org.omg.CORBA.TypeCode create_native_tc(String id,
                                                    String name)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Create a <code>TypeCode</code> object for an IDL abstract interface.
      *
      * @param id        the logical id for the abstract interface type.
      * @param name      the name of the abstract interface type.
      * @return          the requested TypeCode.
      */
     public org.omg.CORBA.TypeCode create_abstract_interface_tc(
                                                                String id,
                                                                String name)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Create a <code>TypeCode</code> object for an IDL fixed type.
      *
      * @param digits    specifies the total number of decimal digits in the number
      *                  and must be from 1 to 31 inclusive.
      * @param scale     specifies the position of the decimal point.
      * @return          the requested TypeCode.
      */
     public org.omg.CORBA.TypeCode create_fixed_tc(short digits, short scale)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     // orbos 98-01-18: Objects By Value -- begin
     /**
      * Create a <code>TypeCode</code> object for an IDL value type.
      * The concrete_base parameter is the TypeCode for the immediate
      * concrete valuetype base of the valuetype for which the TypeCode
      * is being created.
      * It may be null if the valuetype does not have a concrete base.
      *
      * @param id                 the logical id for the value type.
      * @param name               the name of the value type.
      * @param type_modifier      one of the value type modifier constants:
      *                           VM_NONE, VM_CUSTOM, VM_ABSTRACT or VM_TRUNCATABLE
      * @param concrete_base      a <code>TypeCode</code> object
      *                           describing the concrete valuetype base
      * @param members            an array containing the members of the value type
      * @return                   the requested TypeCode
      */
     public org.omg.CORBA.TypeCode create_value_tc(String id,
                                                   String name,
                                                   short type_modifier,
                                                   TypeCode concrete_base,
                                                   ValueMember[] members)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Create a recursive <code>TypeCode</code> object which
      * serves as a placeholder for a concrete TypeCode during the process of creating
      * TypeCodes which contain recursion. The id parameter specifies the repository id of
      * the type for which the recursive TypeCode is serving as a placeholder. Once the
      * recursive TypeCode has been properly embedded in the enclosing TypeCode which
      * corresponds to the specified repository id, it will function as a normal TypeCode.
      * Invoking operations on the recursive TypeCode before it has been embedded in the
      * enclosing TypeCode will result in a <code>BAD_TYPECODE</code> exception.
      * <P>
      * For example, the following IDL type declaration contains recursion:
      * <PRE>
      *    Struct Node {
      *        Sequence&lt;Node&gt; subnodes;
      *    };
      * </PRE>
      * <P>
      * To create a TypeCode for struct Node, you would invoke the TypeCode creation
      * operations as shown below:
      * <PRE>
      * String nodeID = "IDL:Node:1.0";
      * TypeCode recursiveSeqTC = orb.create_sequence_tc(0, orb.create_recursive_tc(nodeID));
      * StructMember[] members = { new StructMember("subnodes", recursiveSeqTC, null) };
      * TypeCode structNodeTC = orb.create_struct_tc(nodeID, "Node", members);
      * </PRE>
      * <P>
      * Also note that the following is an illegal IDL type declaration:
      * <PRE>
      *    Struct Node {
      *        Node next;
      *    };
      * </PRE>
      * <P>
      * Recursive types can only appear within sequences which can be empty.
      * That way marshaling problems, when transmitting the struct in an Any, are avoided.
      * <P>
      * @param id                 the logical id of the referenced type
      * @return                   the requested TypeCode
      */
     public org.omg.CORBA.TypeCode create_recursive_tc(String id) {
         // implemented in subclass
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a <code>TypeCode</code> object for an IDL value box.
      *
      * @param id                 the logical id for the value type
      * @param name               the name of the value type
      * @param boxed_type         the TypeCode for the type
      * @return                   the requested TypeCode
      */
     public org.omg.CORBA.TypeCode create_value_box_tc(String id,
                                                       String name,
                                                       TypeCode boxed_type)
     {
         // implemented in subclass
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     // orbos 98-01-18: Objects By Value -- end
     /**
      * Creates an IDL <code>Any</code> object initialized to
      * contain a <code>Typecode</code> object whose <code>kind</code> field
      * is set to <code>TCKind.tc_null</code>.
      *
      * @return          a newly-created <code>Any</code> object
      */
     abstract public Any create_any();
     /**
      * Retrieves a <code>Current</code> object.
      * The <code>Current</code> interface is used to manage thread-specific
      * information for use by services such as transactions and security.
      *
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      *
      * @return          a newly-created <code>Current</code> object
      * @deprecated      use <code>resolve_initial_references</code>.
      */
     @Deprecated
     public org.omg.CORBA.Current get_current()
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * This operation blocks the current thread until the ORB has
      * completed the shutdown process, initiated when some thread calls
      * <code>shutdown</code>. It may be used by multiple threads which
      * get all notified when the ORB shuts down.
      *
      */
     public void run()
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Instructs the ORB to shut down, which causes all
      * object adapters to shut down, in preparation for destruction.<br>
      * If the <code>wait_for_completion</code> parameter
      * is true, this operation blocks until all ORB processing (including
      * processing of currently executing requests, object deactivation,
      * and other object adapter operations) has completed.
      * If an application does this in a thread that is currently servicing
      * an invocation, the <code>BAD_INV_ORDER</code> system exception
      * will be thrown with the OMG minor code 3,
      * since blocking would result in a deadlock.<br>
      * If the <code>wait_for_completion</code> parameter is <code>FALSE</code>,
      * then shutdown may not have completed upon return.<p>
      * While the ORB is in the process of shutting down, the ORB operates as normal,
      * servicing incoming and outgoing requests until all requests have been completed.
      * Once an ORB has shutdown, only object reference management operations
      * may be invoked on the ORB or any object reference obtained from it.
      * An application may also invoke the <code>destroy</code> operation on the ORB itself.
      * Invoking any other operation will throw the <code>BAD_INV_ORDER</code>
      * system exception with the OMG minor code 4.<p>
      * The <code>ORB.run</code> method will return after
      * <code>shutdown</code> has been called.
      *
      * @param wait_for_completion <code>true</code> if the call
      *        should block until the shutdown is complete;
      *        <code>false</code> if it should return immediately
      * @throws org.omg.CORBA.BAD_INV_ORDER if the current thread is servicing
      *         an invocation
      */
     public void shutdown(boolean wait_for_completion)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Returns <code>true</code> if the ORB needs the main thread to
      * perform some work, and <code>false</code> if the ORB does not
      * need the main thread.
      *
      * @return <code>true</code> if there is work pending, meaning that the ORB
      *         needs the main thread to perform some work; <code>false</code>
      *         if there is no work pending and thus the ORB does not need the
      *         main thread
      *
      */
     public boolean work_pending()
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Performs an implementation-dependent unit of work if called
      * by the main thread. Otherwise it does nothing.
      * The methods <code>work_pending</code> and <code>perform_work</code>
      * can be used in
      * conjunction to implement a simple polling loop that multiplexes
      * the main thread among the ORB and other activities.
      *
      */
     public void perform_work()
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Used to obtain information about CORBA facilities and services
      * that are supported by this ORB. The service type for which
      * information is being requested is passed in as the in
      * parameter <tt>service_type</tt>, the values defined by
      * constants in the CORBA module. If service information is
      * available for that type, that is returned in the out parameter
      * <tt>service_info</tt>, and the operation returns the
      * value <tt>true</tt>. If no information for the requested
      * services type is available, the operation returns <tt>false</tt>
      *  (i.e., the service is not supported by this ORB).
      * <P>
      * @param service_type a <code>short</code> indicating the
      *        service type for which information is being requested
      * @param service_info a <code>ServiceInformationHolder</code> object
      *        that will hold the <code>ServiceInformation</code> object
      *        produced by this method
      * @return <code>true</code> if service information is available
      *        for the <tt>service_type</tt>;
      *         <tt>false</tt> if no information for the
      *         requested services type is available
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      */
     public boolean get_service_information(short service_type,
                                            ServiceInformationHolder service_info)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     // orbos 98-01-18: Objects By Value -- begin
     /**
      * Creates a new <code>DynAny</code> object from the given
      * <code>Any</code> object.
      * <P>
      * @param value the <code>Any</code> object from which to create a new
      *        <code>DynAny</code> object
      * @return the new <code>DynAny</code> object created from the given
      *         <code>Any</code> object
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynAny create_dyn_any(org.omg.CORBA.Any value)
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a basic <code>DynAny</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynAny</code> object
      * @return the new <code>DynAny</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynAny create_basic_dyn_any(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a new <code>DynStruct</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynStruct</code> object
      * @return the new <code>DynStruct</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynStruct create_dyn_struct(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a new <code>DynSequence</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynSequence</code> object
      * @return the new <code>DynSequence</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynSequence create_dyn_sequence(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a new <code>DynArray</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynArray</code> object
      * @return the new <code>DynArray</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynArray create_dyn_array(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a new <code>DynUnion</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynUnion</code> object
      * @return the new <code>DynUnion</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynUnion create_dyn_union(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
      * Creates a new <code>DynEnum</code> object from the given
      * <code>TypeCode</code> object.
      * <P>
      * @param type the <code>TypeCode</code> object from which to create a new
      *        <code>DynEnum</code> object
      * @return the new <code>DynEnum</code> object created from the given
      *         <code>TypeCode</code> object
      * @throws org.omg.CORBA.ORBPackage.InconsistentTypeCode if the given
      *         <code>TypeCode</code> object is not consistent with the operation.
      * @see <a href="package-summary.html#unimpl"><code>CORBA</code> package
      *      comments for unimplemented features</a>
      * @deprecated Use the new <a href="../DynamicAny/DynAnyFactory.html">DynAnyFactory</a> API instead
      */
     @Deprecated
     public org.omg.CORBA.DynEnum create_dyn_enum(org.omg.CORBA.TypeCode type) throws org.omg.CORBA.ORBPackage.InconsistentTypeCode
     {
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
     /**
     * Can be invoked to create new instances of policy objects
     * of a specific type with specified initial state. If
     * <tt>create_policy</tt> fails to instantiate a new Policy
     * object due to its inability to interpret the requested type
     * and content of the policy, it raises the <tt>PolicyError</tt>
     * exception with the appropriate reason.
     * @param type the <tt>PolicyType</tt> of the policy object to
     *        be created
     * @param val the value that will be used to set the initial
     *        state of the <tt>Policy</tt> object that is created
     * @return Reference to a newly created <tt>Policy</tt> object
     *        of type specified by the <tt>type</tt> parameter and
     *        initialized to a state specified by the <tt>val</tt>
     *        parameter
     * @throws <tt>org.omg.CORBA.PolicyError</tt> when the requested
     *        policy is not supported or a requested initial state
     *        for the policy is not supported.
     */
     public org.omg.CORBA.Policy create_policy(int type, org.omg.CORBA.Any val)
         throws org.omg.CORBA.PolicyError
     {
         // Currently not implemented until PIORB.
         throw new org.omg.CORBA.NO_IMPLEMENT();
     }
 }

Mercurial > jdk8-mips64-public > corba / annotate

src/share/classes/org/omg/CORBA/ORB.java@009fc3f785a9 (annotated)

src/share/classes/org/omg/CORBA/ORB.java