Deployment Services 

Purpose

As a middle-tier software, the J2EE Engine supports the deployment of applications, services, interfaces, and libraries. The applications are components defined by the Java 2 Enterprise Edition (J2EE) standards. They are deployed using online deployment process – that is, the process is executed on a running J2EE Engine server. The services, the interfaces, and the libraries enhance the functions of the server and extend their scope. They are deployed using offline deployment process.

The Deploy Service manages the online deployment processes in the J2EE Engine. It uses the File Transfer Service to enable the deployment of remote files and also on remote machines.

Implementation Considerations

You can use the deployment APIs that the Deploy Service and the File Transfer Service provide in both application and service development.

In application development you can use the Deploy Service API in the com.sap.engine.services.deploy package to register the application in the deployment event system. In addition, you can manage programmatically the deployment and update processes for the applications from a standalone Java client.

You can use the File Transfer Service API in the com.sap.engine.services.file package in both applications and services to manage programmatically the upload and download of remote files.

For more information about these APIs, see the J2EE Engine API documentation in the SAP NetWeaver Developer Studio help.