jBPM WorkFlow Example

We will take an example of Passenger who will going to decide a Journey with a Car or Bike. We can understand the working of jBPM WorkFlow into practice with the help of following Step:

Step 1: Open the blank .rf file in Eclipse editor and draw the following WorkFlow Component using Drag and Drop.

Step 2: Set the properties of every Event Task as we seen previously in the Validation part, the following screen appears.

Step 3: Now we will change the ruleflow Id and set the variable in properties. To set the variable click on the action properties of variable, the following screen appears:

Step 4: Click on Add Button and Set the field as below screenshot.

Step 5: Now our properties will look like below screen in which we had set the Id and Variable.

Step 6: We do some changes in ProcessTest.java class file to run our process. We can see the changes in the bold font:

public static final void main(String[] args) {
        try {
            // load up the knowledge base
            KnowledgeBase kbase = readKnowledgeBase();
            StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
            KnowledgeRuntimeLogger logger = KnowledgeRuntimeLoggerFactory.newFileLogger(ksession, "test");

            Map<String, Object> params = new HashMap<String, Object>();
            params.put("income", 1500);
            // start a new process instance
            ksession.startProcess("joe.ruleflow", params);

            logger.close();
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }

Step 7: Now we create the Passenger.java file in the same package as ProcessTest.java

public class Passenger {
		   private String name;
		   private int income;
		   public String getname()
		   {        		   
		       return this.name;
		   }
		   public void setname(String value)
		   {        		        
		        this.name = value;
		   }
		   public int getincome()
		   {        		        
		       return this.income;
		   }
		   public void setincome(Integer value)
		   {       		        
		        this.income = value;
		   }

Step 8: Now we run the ProcessTest.java file as Java Application and see the output.