Transactions and Resource Handling 

Purpose

The Transactions and Resource Handling component is a system that manages the execution of the transactions in the J2EE Engine, transaction propagation to other clients or application servers, as well as the usage of resources in these transactions. The functions of this component enable the J2EE Engine to:

·        Work in a distributed environment to provide scalability and increased performance

·        Access other resource systems, such as databases, Java Message Service (JMS) providers, and Enterprise Information Systems (EIS)

Integration

This component defines a uniform way for transaction usage and access to resources. It is used by the container services (EJB Container, Web Container, Application Client) to provide access to resources for the J2EE application components deployed in them.

Features

The functions of the Transactions and Resource Handling system are provided by the following J2EE Engine services:

·        Transaction Service

·        Connector Container Service

·        JDBC Connector Service

·        JMS Connector Service

The last three services are also part of the J2EE Connector Architecture implementation in the J2EE Engine.

For more information about this component, see:

·        Introduction to Transactions in J2EE Engine

·        Resource Handling Mechanism.