/*
* @(#)ORB.java 1.132 04/05/18
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
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;
/**
* 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 IDL
* implementation)
* </OL>
* <P>
* Note that Java 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 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 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 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.
* @version 1.70, 09/09/97
* @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 last resort fallback ORB implementation classes in case
// no ORB implementation class is dynamically configured through
// properties or applet parameters. Change these values to
// vendor-specific class names.
//
private static final String defaultORB = "com.sun.corba.se.impl.orb.ORBImpl";
private static final String defaultORBSingleton = "com.sun.corba.se.impl.orb.ORBSingleton";
//
// 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 ORB init() {
if (singleton == null) {
String className = getSystemProperty(ORBSingletonClassKey);
if (className == null)
className = getPropertyFromFile(ORBSingletonClassKey);
if (className == null)
className = defaultORBSingleton;
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 {
return (ORB) Class.forName(className, true, cl).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 = defaultORB;
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 = defaultORB;
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.
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 <Node> 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<Node> 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();
}
}
|
