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 server, it must be specified in the ibm-ejb-jar-bnd.xml binding file - websphere

<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