Thank you for your interest in Novell exteNd Messaging Platform's ORB. This ORB is an enterprise-class, high performance, and scalable Java CORBA ORB runtime, services, and development tools.Version 5.1 of the ORB is CORBA 2.4 compliant. It includes features like the forward (IDL to Java) and reverse (Java RMI to IIOP, and Java RMI to IDL) compilers, Portable Object Adapter (POA), Objects by Value, Server Activation, IIOP Connection Concentrator, Pluggable Authentication support, IIOP/SSL, COS Name Service, Multicast Object Invocations, and Object Transaction Service pluggability.
Please see the datasheet for the list of all features, and the Release Notes for the list of new and improved features.
Version 5.1 of the ORB is a minor release with the following features:Version 4.0 is a major release supporting CORBA requirements for J2EE 1.3. It provides several new and improved features:
- Support for JDK 1.4
- Support for NetWare 6.5
- Support for additional SSL cipher suites
- Includes GUI based monitoring console
- Includes transaction service
- Common Secure Interoperability (CSIv2)
- Interoperable Name Service
- Upgraded IIOP Protocol (IIOP 1.2)
- Support for Object Transaction Service (OTS) v1.2 implementation
- Support for Internet clients by tunneling IIOP through HTTP
- Clustering support for Fail-Over and Load-Balancing
- Monitoring APIs and support for GUI monitoring console
The ORB is currently supported on the various Windows platforms (95, 98, ME, NT, 2K, and XP), Solaris Sparc 2.5.1+, Redhat Linux, and NetWare 6.5.Note: Officially, the ORB's support for Windows 95, and Windows 98 is client only. Using Windows 95 and 98 as a server is possible for test or demonstration purposes, but is not recommended for any type of mission critical or production application.
For a complete list of JDK versions, please see the release notes.
The HTTP Tunnel feature of the ORB requires a Servlet 2.2+ runtime.
The ORB supports the Java 2 platform in several key ways.
- Implements the Java IDL Specification
- The ORB is a super set of the Java IDL with support for persistent objects, Portable Object Adapter (POA), RMI over IIOP, Java Objects by Value, Persistent CosNaming, JNDI support, Pluggable Authentication support, IIOP/SSL, Transaction Service support etc.
- Java 2 can be configured so that the ORB implementation of the Java IDL APIs can replace the JDK native implementation. This is done by copying the $(JBROKER_HOME)/lib/orb.properties file to the $(JAVA2_HOME)/jre/lib directory.
- The ORB provides extensive CORBA Naming support. The ORB Daemon, jorbd, by default, runs a persistent NameService. You can access its root NamingContext from Java IDL by setting System properties ORBInitialHost, and ORBInitialPort to the hostname and port (2506, by default) respectively where the ORB daemon is running.
For added compatability with Java IDL, the ORB includes, tnameserv, a simple transient name server.- The ORB's idl2java compiler generates portable bindings (using the -dynamic flag) that can be used with the Java IDL ORB.
- The ORB honors the Java IDL proprietary ORB properties - org.omg.CORBA.ORBInitialHost and org.omg.CORBA.ORBInitialPort
- Implements the RMI-IIOP Specification
- rmi2iiop is the equivalent of the JDK rmic -iiop compiler. It will generate stubs and Ties that can be used in conjunction with the PortableRemoteObject APIs. In addition, for higher server scalability you can choose to use the Portable Object Adapter (POA) and generate bindings for it using the -poa option.
- rmi2idl is the equivalent of the JDK rmic -idl compiler
- The ORB include runtime support for the javax.rmi.PortableRemoteObject APIs as well as the Portable Object Adapter.
- The ORB supports the use of the JNDI COSNaming provider from Sun.
- The ORB is also capable of running implementations that use
javax.rmi.PortableRemoteObjectAPIs over JRMP (Java Remote Method Protocol), the original protocol used by Java RMI. The decision to use IIOP stubs vs the JRMP stubs is made at runtime based on the type of stubs that the runtime is able to load.
- Integration with Java 2 Security
- The ORB can be used with the Java security manager turned ON. To do so the ORB is required to be installed as a Java 2 Extension and run as "trusted" code with "AllPermissions" (which is the default for all installed Java 2 extensions.)
- The ORB protects the following of its APIs using the Java 2 Permissions framework so that only the codebases that have sufficient permissions can successfully invoke them.
For details please see Integrating with Java 2 Security.
- create/destroy ORB objects
- read/write Initial Object Reference
- install a Transaction Service using the TSIdentification APIs
- POA create, destroy, get POA Manager
- set Thread and ORB level Principals using the SecurityCurrent
- creating a transient or persistent NameService instance
- Packaged and Installable as a Java 2 Extension
The ORB install program can install the ORB as a Java 2 Extension copying its JARs, property files, and native libraries to the JDK 1.2 extension directory. If you choose not to install the ORB as a Java 2 extension at install time, or if you installed using JDK 1.1.x, you can later install the ORB as a Java 2 extension by executing the following steps:
- Copy the $(JBROKER_HOME)/lib/orb.properties file to the $(JDK_HOME)/jre/lib directory
- Copy the $(JBROKER_HOME)/lib/mp-orb.jar, $(JBROKER_HOME)/lib/mp-orb-ssl.jar, and $(JBROKER_HOME)/lib/mp-orb-tools.jar files to the $(JDK_HOME)/jre/lib/ext directory
- Copy all the $(JBROKER_HOME)/lib/*.properties files to the $(JDK_HOME)/jre/lib/ext/classes directory
- Copy the ORB's native libraries to the JDK extensions directory
- On Solaris: copy $(JBROKER_HOME)/bin/solaris/libmporb12.so to the $(JDK_HOME)/jre/lib/ext/sparc directory
- On Win32: copy $(JBROKER_HOME)/bin/win32/mporb12.dll to the $(JDK_HOME)/jre/lib/ext/x86 directory
Documentation
This release comes with reference documentation as well as a tutorial that will familiarize you with the various features of the ORB.Sample Programs
We have included several sample programs that showcase ORB features.Back to top.
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