SAP JCo Scenario: J2EE/ABAP Coupling (SAP Web AS) 

 

In the SAP Web Application Server (SAP_BASIS), you can work in a J2EE environment and in an ABAP environment. Communication between these components is realized by the SAP JCo. Figure 1 shows an overview of the architecture of the SAP Web AS with the SAP Java Connector as the interface between the J2EE and the ABAP environment:

Figure 1: J2EE/ABAP Coupling in the SAP Web AS Using SAP JCo

Data is transferred between SAP JCo and the ABAP environment using the 'traditional' methods of RFC (with Gateway-Communication via CPI-C) or using Fast RFC (fRFC):

 

Figure 2: Communication Between ABAP and J2EE (SAP Web AS) Using CPI-C/fRFC.

Further Information

For an overview of the architecture of the SAP J2EE Engine in the SAP Web Application Server, see:

• Integration of the SAP J2EE Engine