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Corba and-java

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CORBA and Java ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Abstract ,[object Object]
Introduction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part I: CORBA Overview
What is CORBA? ,[object Object],[object Object],[object Object]
What is CORBA good for? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Why Distributed Applications? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Why Distributed Applications? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Distributed Object Systems ,[object Object],[object Object],[object Object],[object Object]
What is the OMG? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
It’s Just A Spec ,[object Object],[object Object],[object Object],[object Object],[object Object]
Basic CORBA Architecture Client Server ORB ORB request response “ Object Bus”
CORBA Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CORBA Elements ,[object Object],[object Object],[object Object],[object Object]
ORB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ORB Responsibilities ,[object Object],[object Object],[object Object],[object Object]
Network of ORBs ,[object Object],[object Object]
IIOP ,[object Object],[object Object],[object Object]
ORB Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ORB Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
What is an ORB really? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IDL ,[object Object],[object Object],[object Object],[object Object],[object Object]
IDL Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Stubs and Skeletons ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Stubs and Skeletons (Fig.) IIOP ORB Client Host Machine Client Object ORB Server Host Machine Stub Remote Object Skeleton
Client vs. Server ,[object Object],[object Object],[object Object],[object Object],[object Object]
Different Meanings of “Server” ,[object Object],[object Object],[object Object],[object Object],[object Object]
Stubs and Skeletons -> Platform Independence ,[object Object]
CORBA Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CORBA Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CORBA Services ,[object Object],[object Object],[object Object],[object Object]
CORBA Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CORBA Facilities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
N-Tier Design with CORBA Client Tier Business Object Tier ORB ORB ORB DB DB TP Monitor ORB Storage “Tier” (after diagram in Orfali et al.) Service “Tier” ORB Data Object ORB ORB ORB ORB
Three Tiers ,[object Object],[object Object],[object Object],[object Object]
Part II: Java IDL - Using CORBA from Java
Java CORBA Products ,[object Object],[object Object],[object Object],[object Object],[object Object]
Java IDL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transparent API ,[object Object],[object Object],[object Object],[object Object]
The Java ORB ,[object Object],[object Object],[object Object],[object Object]
Other Java ORBs ,[object Object],[object Object],[object Object],[object Object],[object Object]
IDL to Java Mapping ,[object Object],[object Object],[object Object]
IDL to Java Type Mapping ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Java Type boolean char byte short int long float double String
IDL vs. Java vs. C++ concepts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IDL Modules ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IDL Interfaces ,[object Object]
IDL Operations ,[object Object]
IDL Attributes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
idltojava ,[object Object],[object Object],[object Object]
Stubs ,[object Object],[object Object],[object Object],[object Object]
Skeletons ,[object Object],[object Object]
Remote Interfaces and Stubs IDL Interface Stub Remote Object (Server) Client Skeleton implements implements extends
Show Me The Source Code ,[object Object]
idltojava input ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
idltojava output ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Adder.java ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementing a server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AdderServer.java ,[object Object],[object Object],[object Object],[object Object],[object Object]
AdderServer.java (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AdderServer.java (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Implementing a client ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AdderClient.java
Object Reference ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Naming Service ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Fire it up ,[object Object],[object Object],[object Object],[object Object]
CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server
CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 1 2 1. Server Creates Remote Object 2. Server Registers Remote Object
CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 4 3. Client requests object from Name Server 4. Name Server returns remote reference (and stub gets created) 3
RMI Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 6 5. Client invokes stub method 6. Stub talks to skeleton 7. Skeleton invokes remote object method 5 7
Pseudo-objects ,[object Object],[object Object]
The Basic Object Adapter (BOA) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why do you need both an ORB and a BOA? ,[object Object],[object Object],[object Object],[object Object],[object Object]
Using the BOA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BOA Object Activation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
BOA Object Activation (cont.) ,[object Object],[object Object],[object Object],[object Object]
BOA Object Activation Scenario ,[object Object],[object Object],[object Object],[object Object],[object Object]
BOA Object Activation Scenario (cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Threads in JavaIDL ,[object Object],[object Object]
Callbacks ,[object Object],[object Object],[object Object],[object Object]
Obtaining Object References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Helper Objects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Naming Contexts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Stringification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Visigenic: Caffeine ,[object Object]
Symantec: Visual Café 3.0 Enterprise Suite ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part III: Example Application
Publish-Subscribe System ,[object Object],[object Object],[object Object],[object Object]
Object Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Flow: Subscriber-side ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Flow: Publisher-side ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example Application: Stock data ,[object Object],[object Object]
Design issues ,[object Object],[object Object],[object Object],[object Object]
Design issues ,[object Object],[object Object],[object Object]
Part IV: Advanced Topics
Exceptions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Exceptions (cont.) ,[object Object],[object Object],[object Object]
Dynamic Invocation Interface (DII) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Interface Repositories ,[object Object],[object Object],[object Object]
Implementation Repository ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Value Objects ,[object Object],[object Object],[object Object]
RMI over IIOP ,[object Object],[object Object],[object Object]
CORBA via RMI ,[object Object],[object Object],[object Object],[object Object]
CORBA and EJB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CORBA and EJB (Cont.) ,[object Object],[object Object],[object Object],[object Object]
Java Transactions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Object Transaction Service (OTS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OTS Features ,[object Object],[object Object],[object Object],[object Object]
OTS Object Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OTS Object Model (Cont.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Part V: CORBA/Java Case Studies
CORBA Case Study ,[object Object],[object Object],[object Object]
Problem: Specific ,[object Object],[object Object],[object Object]
Problem: General ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Solution: Java/CORBA ,[object Object]
WebChart Architecture
This is your brain on Java. Any questions?
Conclusion
Where to Get More Information ,[object Object],[object Object]
More Info: Links ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
More Info: Links ,[object Object],[object Object],[object Object],[object Object],[object Object]

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Corba and-java

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  • 4. Part I: CORBA Overview
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  • 12. Basic CORBA Architecture Client Server ORB ORB request response “ Object Bus”
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  • 25. Stubs and Skeletons (Fig.) IIOP ORB Client Host Machine Client Object ORB Server Host Machine Stub Remote Object Skeleton
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  • 34. N-Tier Design with CORBA Client Tier Business Object Tier ORB ORB ORB DB DB TP Monitor ORB Storage “Tier” (after diagram in Orfali et al.) Service “Tier” ORB Data Object ORB ORB ORB ORB
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  • 36. Part II: Java IDL - Using CORBA from Java
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  • 52. Remote Interfaces and Stubs IDL Interface Stub Remote Object (Server) Client Skeleton implements implements extends
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  • 66. CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server
  • 67. CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 1 2 1. Server Creates Remote Object 2. Server Registers Remote Object
  • 68. CORBA Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 4 3. Client requests object from Name Server 4. Name Server returns remote reference (and stub gets created) 3
  • 69. RMI Flow Client Virtual Machine Client Server Virtual Machine Stub Remote Object Skeleton Name Server Virtual Machine “ Fred” Server 6 5. Client invokes stub method 6. Stub talks to skeleton 7. Skeleton invokes remote object method 5 7
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  • 85.
  • 86. Part III: Example Application
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  • 109.
  • 110. Part V: CORBA/Java Case Studies
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  • 116. This is your brain on Java. Any questions?
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