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Using In-Process Adapters and Gateways
In-process adapters and gateways are installed and run in the same Java Virtual Machine (JVM) as the calling webject. Only native adapters and gateways can be configured to run in the same JVM as the calling webject. The SAK determines which classes are required when processing webjects for an in-process adapter or gateway, and instantiates the classes in the JVM. Therefore, the communication between the webject and the adapter or gateway is very efficient.
Configuring in-process adapters and gateways minimizes communication delays and resource usage; however, the total resource usage of the machine hosting the Info*Engine code may be increased because of the additional load of running the adapter or gateway.
When an adapter is configured to be an in-process adapter, the adapter classes can be instantiated by any SAK that executes adapter webjects. The following diagram shows adapter classes residing in the JVM of a custom Java application, the web server, and the Info*Engine server:
As shown in the diagram, no external communication is needed between the SAK and the adapter when the adapter is in the same process.
Running in-process native adapters and gateways is generally the preferred configuration if the resource usage on a single system is not excessive.