Creating the Process Classes

In this example, we are going to implement a process class that will create a number of installed items. All process classes should be placed under com.crm.process.* named packages, extend either com.crm.process.CRMProcess or one of its subclasses  and follow this naming convention: CRMProcess<classname>Bean.java. Classes created for processes handled by the scheduler should extend com.crm.process.CRMProcessRunBean.

Implementing the Process Flow

To implement the desired process flow we add the corresponding methods.

    /**
     * Creates a number of installed items.
     * 
     * @param numberOfInstalledItems - the number of installed items to construct
     * @return a list of installed items
     * @throws Exception
     */
    public ArrayList<CRMDO> createInstalledItems(Integer numberOfInstalledItems) throws Exception {
    	
    	ArrayList<CRMDO> installedItems = new ArrayList<CRMDO>();
    	
    	for (int i=0; i<numberOfInstalledItems; i++)
    	{
    		CRMDOInstalledItem installedItem = (CRMDOInstalledItem)installedItemBean.construct();
    		
    		installedItem.setSerialNumber(newGuid());
    		
    		installedItem = (CRMDOInstalledItem)installedItemBean.validateAndSave(installedItem);
    		
    		installedItems.add(installedItem);
    	}
    	
    	return installedItems;
    }
 

Note that our method does not contain any complex business logic. In short, it executes a loop and for each iteration, it uses the business logic provided by the installedItemBean(com.crm.businessobject.inventory.CRMBOInstalledItemBean) business object and sets a new serial number on the data objects returned. When the loop completes, it returns a list of the installed item data objects created.

EJB Binding File

In order for the EJB class to be bound to the WebSphere server, it must be specified in the ibm-ejb-jar-bnd.xml binding file 

<ejb-jar-bnd>
    ...
	<!-- CRMProcess > inventory -->
	<session name="CRMProcessInstalledItemBean" simple-binding-name="ejb/CRMProcessInstalledItem" />
	...
</ejb-jar-bnd>

For more information on creating custom process classes, go to Customise Existing Business Logic. 

To start implementing the view layer, go to Developing the View layer