Download J2EE Connector Architecture and Enterprise Application by Rahul Sharma PDF
By Rahul Sharma
The Java(TM) 2 firm variation (J2EE) platform connector structure is the foremost part in Java's aid for firm program integration (EAI) and for linking firm info structures (EISs) with net prone. simply because many companies at the moment are supplied throughout the net, it's crucial that company firms have an effective EAI resolution. J2EE(TM) Connector structure and company program Integration is the definitive advisor to exhibiting firm companies easy methods to contain current firm infrastructure and functions, taking them into the Web-enabled financial system of the longer term. Written for software part builders who're development Connector structure purposes, J2EE(TM) Connector structure and firm software Integration explains the right way to attach purposes not just to each other but additionally to a mess of EISs and legacy platforms. This e-book can be of curiosity to autonomous software program builders (ISVs) and others who boost source adapters for particular EISs. Readers will how one can hyperlink underlying infrastructure items with J2EE program server and platform applied sciences.
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Extra resources for J2EE Connector Architecture and Enterprise Application Integration
Sample text
When bean-managed transactions are used, the enterprise bean itself must manage these aspects of a transaction. The J2EE platform also provides security services that ensure authorized access to resources. These security services control access through a two-step process of authentication and authorization. A principal, which is typically a user or another program, authenticates itself by providing a name and password, referred to as its authentication data. Once authenticated, a principal must have the correct authorizations to access a particular resource.
1 uses the Connection and ConnectionFactory interfaces defined in the Common Client Interface. ) When the application component needs to establish a connection, the developer uses the JNDI naming context to look up a ConnectionFactory instance. Once the application component has a ConnectionFactory instance, the developer can obtain one or more connections to the EIS by invoking the factory's getConnection method. This method returns an application-level connection handle to the underlying physical connection.
The diversity of these existing systems and applications is enormous. By providing a transaction management contract, the Connector architecture channels all access to multiple resource managers through standard interfaces. The Connector architecture enables a resource manager to plug in to a J2EE application server. Once plugged in, the resource manager can be accessed within transactions from applications developed and deployed on the J2EE server. In addition, the Connector architecture enables application developers to use the standard J2EE programming model for transaction management and to access an underlying, diverse set of EISs.