Why do I get a SystemException failure when trying to enlist my XAResource in a client?
A. WebLogic Server does not allow you to register or enlist an XA resource on a client. The reason for this restriction is that a client is deemed to be less reliable than a server in terms of availability. This is also why a client is not allowed to act as a transaction coordinator and register Synchronization objects. Your client could invoke a remote object on a server that accesses the resource within a transaction. If it’s a JDBC resource, then you can configure a JDBCConnectionPool and JDBCTxDataSource using an Oracle XA driver (Oracle thin or WebLogic Type 4 driver for Oracle) and obtain a connection from the data source. Or the client could look up the data source using JNDI and retrieve and manipulate a connection in a transaction. Transaction enlistment is performed automatically.
WebLogic Server does not allow you to register or enlist an XA resource on a client. The reason for this restriction is that a client is deemed to be less reliable than a server in terms of availability. This is also why a client is not allowed to act as a transaction coordinator and register Synchronization objects. Your client could invoke a remote object on a server that accesses the resource within a transaction. If it’s a JDBC resource, then you can configure a JDBCConnectionPool and JDBCTxDataSource using an Oracle XA driver (Oracle thin or WebLogic Type 4 driver for Oracle) and obtain a connection from the data source. Or the client could look up the data source using JNDI and retrieve and manipulate a connection in a transaction. Transaction enlistment is performed automatically.
