How to Create a Custom Data Publisher

To create a custom data publisher, perform the following steps:

To create a custom data publisher:

In the Applications window, double-click the BPEL project.

The Project Properties dialog appears.
Click Libraries and Classpath.
Browse and select the following:
```
SOA_ORACLE_HOME/lib/java/shared/oracle.soainfra.common/11.1.1/orabpel.jar
```
Figure 18-12 provides details.

Figure 18-12 Project Properties Dialog

Description of "Figure 18-12 Project Properties Dialog"
Create a new Java class.

The package and class name must match the publish target name of the sensor action.
Implement the com.oracle.bpel.sensor.DataPublisher interface.

This updates the source file and fills in the methods and import statements of the DataPublisher interface.
Using Oracle JDeveloper, implement the publish method of the DataPublisher interface, as shown in the sample custom data publisher class in Figure 18-13.

Figure 18-13 Custom Data Publisher Class

Description of "Figure 18-13 Custom Data Publisher Class"
Ensure that the class compiles successfully.

The next time that you deploy the BPEL process, the Java class is added to the SOA archive (SAR) and deployed.

Note:

Ensure that additional Java libraries needed to implement the data publisher are in the class path.

Oracle BPEL Process Manager can execute multiple process instances simultaneously, so ensure that the code in your data publisher is thread safe, or add appropriate synchronization blocks. To guarantee high throughput, do not use shared data objects that require synchronization.