Introduction: Client applications
Explore the key concepts pertaining to client applications. Application clients provide a framework on which application code runs, so that your client applications can access information on the application server.
- Application Client for WebSphere Application Server
- In a traditional client-server environment, the client requests a service and the server fulfills the request. Multiple clients use a single server. Clients can also access several different servers. This model persists for Java clients except that now these requests use a client run-time environment.
- J2EE application client class loading
- When you run your J2EE application client, a hierarchy of class loaders is created to load classes used by your application.
- Resource Adapters for the client
- A resource adapter is a system-level software driver that a Java application uses to connect to an enterprise information system (EIS). A resource adapter plugs into an application client and provides connectivity between the EIS and the enterprise application.
- Data sources for the Application Client
- WebSphere Application Server and the Application Client for WAS do not provide client database drivers to be used directly from a J2EE application client. If your application client accesses a database directly, provide the database drivers on the client machine.
- URLs for application clients
- A Uniform Resource Locator (URL) is an identifier that points to an electronically accessible resource, such as a directory file on a machine in a network, or a document stored in a database.
- URL providers for the Application Client Resource Configuration Tool
- A URL provider implements the function for a particular URL protocol, such as Hyper Text Transfer Protocol (HTTP). This provider, comprised of a pair of classes, extends the java.net.URLStreamHandler and java.net.URLConnection classes.
- Asynchronous messaging in WAS using JMS
- WebSphere Application Server supports asynchronous messaging as a method of communication based on the Java Message Service (JMS) programming interface. The JMS interface provides a common way for Java programs (clients and J2EE applications) to create, send, receive, and read asynchronous requests as JMS messages.
- Java Message Service providers for clients
- This topic describes the different ways that client applications can use JMS providers with WebSphere Application Server. A JMS provider enables use of the Java Message Service (JMS) and other message resources in WebSphere Application Server.
- Java Web Start architecture for deploying application clients
- Java Web Start is an application-deployment technology that includes the portability of applets, the maintainability of servlets and JavaServer Pages (JSP) file technology, and the simplicity of mark-up languages such as XML and HTML. It is a Java application that allows full-featured Java 2 client applications to be launched, deployed and updated from a standard Web server. The Java Web Start client is used with platforms that support a Web browser.
- Resource environment providers and resource environment entries
- A resource environment reference maps a logical name used by the client application to the physical name of an object.
WebSphere is a trademark of the IBM Corporation in the United States, other countries, or both.
IBM is a trademark of the IBM Corporation in the United States, other countries, or both.