Why and when to perform this task
There are two options available for indicating that a particular EJB type should only have its ejbStore method invoked if the bean has been modified during the current transaction: You can set an EJB environment variable within the bean's deployment descriptor, or have the bean implementation class implement a marker interface. The second technique is especially useful if you have a number of bean implementations that all extend a single root class; in this case you may have the root class implement the marker interface, causing all beans that extend this class to inherit the behavior as well.Steps for this task
Related tasks
Editing deployment descriptors