Programming Tutorials

J2EE Services

By: aathishankaran in Java Tutorials on 2007-02-20  

J2EE Security Services

The Java Authentication and Authorization Service (JAAS) enables services to authenticate and enforce access controls upon users. It implements a Java technology version of the standard Pluggable Authentication Module (PAM) framework, and extends the access control architecture of the Java 2 Platform in a compatible fashion to support user-based authorization. The Java Authorization Service Provider Contract for Containers (JACC) defines a contract between a J2EE application server and an authorization service provider, allowing custom authorization service providers to be plugged into any J2EE product.

J2EE Web Services

J2EE provides full support for both clients of web services as well as web service endpoints. Several Java technologies work together to provide support for web services. The Java API for XML-based RPC (JAX-RPC) provides support for web service calls using the SOAP/HTTP protocol. JAX-RPC defines the mapping between Java classes and XML as used in SOAP RPC calls. The SOAP with Attachments API for Java (SAAJ) provides support for manipulating low-level SOAP messages. The Web Services for J2EE specification fully defines the deployment of web service clients and web service endpoints in J2EE, as well as the implementation of web service endpoints using enterprise beans. The Java API for XML Registries (JAXR) provides client access to XML registry servers.

J2EE Deployment

The Java 2 Platform, Enterprise Edition Deployment Specification defines a contract between deployment tools and J2EE products. The J2EE products provide plug-in components that run in the deployment tool and allow the deployment tool to deploy applications into the J2EE product. The deployment tool provides services used by these plug-in components.