Stateful session beans
A stateful session bean is used to capture state information that must be shared across multiple consecutive client requests that are part of a logical sequence of operations. The client must obtain an EJB object reference to a stateful session bean to ensure that it is always accessing the same instance of the bean.
WAS currently supports the clustering of stateful session bean home objects among multiple appservers. However, it does not support the clustering of a specific instance of a stateful session bean. Each instance of a particular stateful session bean can exist in just one application server and can be accessed only by directing requests to that particular application server. State information for a stateful session bean cannot be maintained across multiple application server cluster members.
Even though stateful session beans are not workload managed themselves, WLM can still be achieved when the homes are evenly distributed. It is only after the bean is created that everything will be performed on the same cluster member.
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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.