IBM E02HMLL-I Implementation Guide - Page 30
Event, management, service, Connector, controllers, Repository, Database, connectivity, connection, - f my life
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Event management service The InterChange Server Express persistently stores every business object that it receives during the execution of a collaboration. This allows the InterChange Server Express to recover from an unexpected termination or from the failure of a collaboration without losing event notifications or calls. Connector controllers A connector controller is an interface between the client-side of a connector and the InterChange Server Express. A connector controller routes business objects as they traverse the IBM WebSphere Business Integration Server Express system, linking the client-side of connectors to collaborations and managing the mapping process. Through the connector controller, an administrator can: v Trace interactions between the InterChange Server Express and the connector agent. v Enable and disable interactions between the InterChange Server Express and the connector agent. v Specify the type of mapping to perform for each business object arriving from or departing to the connector agent. Repository The InterChange Server Express maintains configuration information and definitions of all objects in a persistent store called the InterChanger Server repository, which consists of a set of tables in a relational database. The tables store object definitions and configuration information in the form of XML documents. Database connectivity service The database connectivity service manages interactions between the InterChange Server Express and the repository. The database connectivity service interacts with the repository by means of the Java Database Connectivity API (JDBC). Database connection pools You can use the System Manager tool of the IBM WebSphere Business Integration Server Express system to define database connection pools in InterChange Server Express. User-defined database connection pools make it possible for developers to directly access relational databases from within a collaboration or map. This feature provides support for v Automated database connection life-cycle management v Simplified APIs for SQL statements and stored procedure execution v Container-managed transaction bracketing Transactional collaborations The IBM WebSphere Business Integration Server Express system supports services that can run a collaboration as if it were a type of transaction. Transactional qualities are desirable for collaborations where data consistency is important across applications. Like other transactions, a transactional collaboration involves a set of steps. If an error occurs, the InterChange Server Express can undo each completed step, performing a transaction-like rollback. 18 IBM WebSphere Business Integration Server Express and Express Plus: System Implementation Guide