Kishore Kumar

The Java Naming and Directory Interface (JNDI) is a standard API to access different naming and directory service implementations like LDAP. A naming service provides naming functionality and a directory service provides applications with directory functionality. The Java naming service is a fundamental component of every J2EE system. JNDI consists of a client API and a service provider interface (SPI). The client application uses the client API to access various naming and directory services. The SPI lets naming and directory service implementations be plugged into the JNDI framework. In this article, we will explore how to use the JNDI SPI to implement a simple client/server-based naming service. Naming Service Architecture Figure 1 shows the architecture and the various components of a typical Java naming service: The first thing any JNDI client does is to create... (more)

Using Apache Cactus

Apache Cactus is part of the Jakarta project and is an open source framework for unit testing server-side Java code. It uses and extends the JUnit framework and facilitates unit testing of servlets, JSPs, Taglibs, EJBs, and filters. Testing server-side components is more complicated than testing client-side code because these components interact with a container and require access to many container-managed objects such as request and session. It's possible to make a mock-up of all the container-managed objects and test the components. These mock objects provide a "clean" environ... (more)

The Promise of Handling Complex Page Navigations in Any Web Application

Page navigation requirements become more demanding as Web applications get bigger and more complex. Hard-coded page flow rules make applications less resilient to changes. In this scenario, reusing business logic is one aspect and reusing page flow becomes another aspect. Especially in situations that demand a wizard-kind behavior, it's essential to capture application page flow logic in a declarative fashion. Spring Web Flow (SWF) is a powerful framework for implementing page flows in a Web application. Even though SWF is part of the Spring Web application development suite tha... (more)