Details about DataBeans


A data bean is a java bean that is used within a jsp page to provide dynamic contect to the jsp page. A data bean normally provides a simple representation of a WebSphere Commerce Entity bean.

 There are 3 types of data beans:
  • Smart data bean: When a smart data bean is activated, the data bean manager invokes the data bean's populate method. Using the populate method, the data bean can retrieve all attributes, except attributes from associated objects.
  • Command data bean: A data bean implementing the CommandDataBean interface retrieves data from a data bean command. A data bean of this type is a lightweight object; it relies on a data bean command to populate its data. The data bean must implement the getCommandInterfaceName() method which returns the interface name of the data bean command.
  • Input data bean: A data bean implementing the InputDataBean interface retrieves data from the URL parameters or attributes set by the view.
Attributes defined in this interface can be used as primary key fields to fetch additional data. When a JSP page is invoked, the generated JSP servlet code populates all the attributes that match the URL parameters, and then activates the data bean by passing the data bean to the data bean manager. The data bean manager then invokes the data bean's setRequestProperties() method (as defined by the com.ibm.commerce.InputDataBean interface) to pass all the attributes set by the view.


Comments

Post a Comment

Popular posts from this blog

Dataload Utility In WCS

Data can be loaded into WCS tables using data load utility.   WCS Data Load utility performs the following functions in a single operation: 1.              Reads the data from the input source file. 2.              Transforms the source data to WebSphere Commerce business objects. 3.              Allocates and resolves WebSphere Commerce business objects to physical data. 4.              Loads the physical data into the database. There are three configurations files and a input source file required to complete the data loader setup. WCS supports only CSV File Reader for other input source you have to write your own Reader Class. This means that if you are using OOB CSVReader then your input file must be a CSV file. The three config...
Read more

WebSphere Commerce

Image
1. Explain WCS Archetecture WebSphere Commerce functional architecture Descriptions: Controller layer The conductor of operations for a request. It controls the transaction scope and manages the session related information for the request. The controller first dispatches to a command and then calls the appropriate view processing logic to render the response. Presentation layer The presentation layer displays the result of command execution. The presentation layer can use JSP pages, or other rendering technologies. Business Context Service (BCS) A service that manages contextual information used by business components. The contexts include such information as globalization and entitlement. Business logic facade This generic interface is implemented as a stateless session bean which the controller calls to invoke controller commands. Controller commands A controller command business process logic such as...
Read more

10 Steps to Configure Email – Websphere Commerce Server

10 Steps to Configure Email – Websphere Commerce Server Websphere Commerce Server – Configure Email Follow 10 steps for configuring email in Websphere Commerce Server Step 1: Create a JSP ( eg:- AbcEmailNotify.jsp) Create a JSP, lets name it AbcEmailNotify.jsp AbcEmailNotify.jsp will be used for displaying contents of email to recipient. Note: Currently keep AbcEmailNotify.jsp as blank (without any code) Step 2: Create View ( eg- AbcEmailNotifyView) Make an Entry in Struts-Config.xml file for AbcEmailNotify.jsp as below < action path=’/AbcEmailNotifyView’ type=’com.ibm.commerce.struts.BaseAction’> < set-property property =’authenticate’ value =’10101:1′/> < set-property property =’https’ value =’10101:1′/> < /action> < forward name=”AbcEmailNotifyView /10101/-3″ path=”/< location of JSP file >/AbcEmailNotify.jsp” className=”com.ibm.commerce.struts.ECActionForward”> < set-property property=”implClassName” value=”com.i...
Read more