Programming Tutorials

Java Transaction API 1.0

By: aathishankaran Printer Friendly Format    

Java Transaction API 1.0

The Java Transaction API ("JTA") provides a standard interface for demarcating transactions. The J2EE architecture provides a default auto commit to handle transaction commits and rollbacks. An auto commit means that any other applications viewing data will see the updated data after each database read or write operation. However, if your application performs two separate database access operations that depend on each other, you will want to use the JTA API to demarcate where the entire transaction, including both operations, begins, rolls back, and commits.

JavaMail API 1.2

J2EE applications can use the JavaMail API to send e-mail notifications. The JavaMail API has two parts: an application-level interface used by the application components to send mail, and a service provider interface. The J2EE platform includes JavaMail with a service provider that allows application components to send Internet mail.

JavaBeans Activation Framework 1.0

The JavaBeans Activation Framework ("JAF") is included because JavaMail uses it. It provides standard services to determine the type of an arbitrary piece of data, encapsulate access to it, discover the operations available on it, and create the appropriate JavaBeans component to perform those operations.

Java API for XML Processing 1.1

XML is a language for representing text-based data so the data can be read and handled by any program or tool. Programs and tools can generate XML documents that other programs and tools can read and handle. The Java API for XML Processing ("JAXP") supports processing of XML documents using DOM, SAX, and XSLT. JAXP enables applications to parse and transform XML documents independent of a particular XML processing implementation.

For example, a J2EE application can use XML to produce reports, and different companies that receive the reports can handle the data in a way that best suits their needs. One company might put the XML data through a program to translate the XML to HTML so it can post the reports to the Web, another company might put the XML data through a tool to create a marketing presentation, and yet another company might read the XML data into its J2EE application for processing.

J2EE Connector Architecture 1.0

J2EE tools vendors and system integrators to create resource adapters that support access to enterprise information systems that can be plugged into any J2EE product use the J2EE Connector architecture. A resource adapter is a software component that allows J2EE application components to access and interact with the underlying resource manager. Because a resource adapter is specific to its resource manager, there is typically a different resource adapter for each type of database or enterprise information system.

Java Authentication and Authorization Service 1.0

The Java Authentication and Authorization Service ("JAAS") provide a way for a J2EE application to authenticate and authorize a specific user or group of users to run it.

JAAS is a Java programing language version of the standard Pluggable Authentication Module (PAM) framework that extends the Java 2 Platform security architecture to support user-based authorization