You can use the cluster manager bean to perform administrative tasks such as creating, deleting, joining and unjoining clusters. You can also use the cluster manager bean to get handles to individual clusters beans. You can use the cluster bean to change properties of the cluster, to access and write to cluster logs, and to retrieve information about the cluster such as getting installed applications, getting path information, getting the finder and getting the deployment manager. Given an individual cluster bean, you can get individual application beans. In Process Manager 6.0, there is only one cluster, but in future releases there may be multiple clusters.
Clusters have properties.
These are represented as IPMClusterProperty objects. Many of the methods for working with clusters take IPMClusterProperty objects as arguments. To create cluster property objects, you use IPMClusterPropertyFactory . At the end of this chapter, there is a coded example of creating a cluster. The IPMClusterManager bean can be thought as a manager of all the cluster beans in the application server instance.