J-Integra® for COM Documentation

Contents

• Introduction
  
• Specifications
  
• Getting Started
  

Introduction

J-Integra® for COM is a high performance middleware software bridge that enables Java COM interoperability. Its pure Java implementation of the DCOM wire protocol allows you to access COM components from Java clients, and Java objects from COM clients. J-Integra® for COM can be used in two different ways:

Point-to-Point Interoperability J-Integra® for COM can be used for point-to-point integration scenarios where the two applications that need to communicate with each other don't need to plug into a common integration infrastructure (such as an ESB). Example use case scenarios include: Java desktop application invoking COM application J2EE Server invoking COM application VB/C++ client interaction with a J2EE Server IIS/ASP interaction with a J2EE Server

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SOA / Web Services Adapter A growing number of users are using J-Integra® for COM as a complement to an integration suite or Enterprise Service Bus (ESB) where exisiting Java/COM systems need to plug into a common integration infrastructure. An example use case scenario is to use J-Integra® for COM as a DCOM protocol adapter that allows an ESB to access a legacy COM application which does not have a Web Services interface.

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Specifications

• Pure Java implementation of the DCOM protocol
• Requires no native code
• Compatible with JDK 1.2 or higher
• Supported on any platform with a JVM
• Optional high-speed (JNI) native mode for Windows platforms
• Zero client/server install option (no additional software required on COM side)
• Subscribe to COM events using standard Java semantics
• Subscribe to Java events using standard VB semantics
• Bi-directional; supports callbacks in both directions
• Auto-generate Java proxy classes from a COM type library (TLB)
• Auto-generate COM TLBs from Java class files
• Expose COM properties, methods, and events to Java clients
• Expose Java properties, methods, and events to COM clients
• Supports all COM Oleautomation types

Getting Started

We recommend trying out the following examples first if you are new to J-Integra®. Please note that the steps involved in running these examples are the same basic steps you will use to bridge any combination of Java/COM components. So even if you are looking to bridge different technologies than the ones used in these examples, we strongly recommend starting here so you can get used to the J-Integra® process.

Before running the examples, follow the installation instructions.

• Java Accessing Microsoft Excel
• Java Accessing Visual C++ DLL
• Embedding Acrobat ActiveX Control in a Java interface
• Visual Basic Accessing Java (Late Binding Example)
• Visual Basic Accessing Java (Early Binding Example)
• Visual Basic Accessing Java (Zero Client Installation)